Desktop Browsers(default settings) |
brave 1.67 |
chrome 126.0 |
edge 126.0 |
firefox 127.0 |
librewolf 128.0-2 |
mullvad 13.5 |
opera 112.0 |
safari 17.5 |
tor 13.5 |
ungoogled 126.0 |
vivaldi 6.8 |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
State Partitioning testsWhich browsers isolate websites to prevent them from sharing data to track you?
A common vulnerability of web browsers is that they allow tracking companies to 'tag' your browser with some data ('state') that identifies you. When third-party trackers are embedded in websites, they can see this identifying data as you browse to different websites. Fortunately, it is possible for this category of leaks to be fixed by partitioning all data stored in the browser such that no data can be shared between websites.
|
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|
Alt-Svc
Alt-Svc allows the server to indicate to the web browser that a resource should be loaded on a different server. Because this is a persistent setting, it could be used to track users across websites if it is not correctly partitioned. |
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same first party: h3, h3, h3, h3, h3
result, different first party: h2, h2, h2, h2, h2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same first party: h3, h3, h3, h3, h3
result, different first party: h2, h2, h2, h2, h2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same first party: h3, h3, h3, h3, h3
result, different first party: h2, h2, h2, h2, h2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same first party: h3
result, different first party: h2
unsupported: false
passed: true
test failed: false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same first party: h3, h3, h3, h3
result, different first party: h2, h2, h2, h2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same first party: h3, h3, h3, h3, h3
result, different first party: h2, h2, h2, h2, h2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same first party: h3, h3, h3, h3, h3
result, different first party: h2, h2, h2, h2, h2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different first party: h2, h2, h2, h2, h2
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different first party: h2, h2, h2, h2, h2
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same first party: h3, h3, h3, h3, h3
result, different first party: h2, h2, h2, h2, h2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same first party: h3, h3, h3, h3, h3
result, different first party: h2, h2, h2, h2, h2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
blob
A 'blob URL' is a local reference to some raw data. Trackers can use a blob URL to share data between websites. |
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
931465cb-4696-44be-b033-23aec5d2c855,
27945744-fa6e-413f-a8bf-2a7a0611b5c1,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7,
1cbe1916-da9f-4309-b801-fac176d6e1e7,
546c9727-9932-436c-a129-a7de9fe6f1de
result, different first party:
Error: Failed to fetch,
Error: Failed to fetch,
Error: Failed to fetch,
Error: Failed to fetch,
Error: Failed to fetch
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9,
dfd72730-58b8-4750-bb50-442519553485,
6d5862f9-070c-4362-9d8e-4929d0fc2515,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76
result, different first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9,
dfd72730-58b8-4750-bb50-442519553485,
6d5862f9-070c-4362-9d8e-4929d0fc2515,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
844a737a-74d3-444e-8390-a7a51390ab87,
84f35658-c039-44c4-af4d-a76d45d00aa9,
ff09d30d-911e-4547-9ff6-ed74ebfad13c,
2c972f0b-79f3-4a76-9927-e04fbaf24402,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2
result, different first party:
844a737a-74d3-444e-8390-a7a51390ab87,
84f35658-c039-44c4-af4d-a76d45d00aa9,
ff09d30d-911e-4547-9ff6-ed74ebfad13c,
2c972f0b-79f3-4a76-9927-e04fbaf24402,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party: bcd34bcb-7c83-44a0-9eda-5688246ef304
result, different first party: Error: NetworkError when attempting to fetch resource.
unsupported: false
passed: true
test failed: false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
96ac1e6a-6196-4192-8d14-4d4161017c0e,
fcb80954-6b9f-4446-826b-50ee63df5a49,
0c73a977-7e59-4e27-9886-fd27d9af7cb6,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3
result, different first party:
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
90e9d075-a493-4589-90a5-cb9ed367a5ff,
3d0759ec-76e7-420f-9fa5-8f9cd1ba98be,
302c7c9a-be1d-4f73-9cc3-4a9fd90d065e,
c6908ef1-96b7-4022-9fb1-6af958c08eab,
9a187200-4907-4ac4-bb1a-a500a9dd6076
result, different first party:
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a,
dd5c9e21-e013-4d68-a26f-427893eb7663,
edf66be4-a523-482a-b119-d15528cdff51
result, different first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a,
dd5c9e21-e013-4d68-a26f-427893eb7663,
edf66be4-a523-482a-b119-d15528cdff51
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
a94af09e-7597-4227-8646-e09e247d5c53,
8124f977-0794-4d12-ac8c-63584f991299,
52fb10c0-c3f0-4583-8aa1-bb667b988d77,
28d41eef-e045-4404-b29a-660557b14eba,
11098c2f-f6c6-4b5e-b3f6-32576f744002
result, different first party:
Error: Load failed,
Error: Load failed,
Error: Load failed,
Error: Load failed,
Error: Load failed
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
f35ff98f-1c72-41f0-954f-7a7c66323baa,
da711384-b29c-4af1-b951-26d3bbd655e2,
f721fb55-8277-4850-85e8-f99056490543,
576b6726-e0d6-4a4b-9fca-92205c480e69,
d91aa27f-67c8-4e96-81cf-f8c0dbd65cab
result, different first party:
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
c59e38bc-da54-464d-9edc-7d3b1e8072c3,
ea127664-f0c4-438a-9fd3-bfeaf6f60369,
e40a919a-ea56-446f-99f8-acfe66cea299,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7,
04750426-c791-47cf-8d99-bd4c035ffcd3
result, different first party:
c59e38bc-da54-464d-9edc-7d3b1e8072c3,
ea127664-f0c4-438a-9fd3-bfeaf6f60369,
e40a919a-ea56-446f-99f8-acfe66cea299,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7,
04750426-c791-47cf-8d99-bd4c035ffcd3
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a,
9753f0f1-c57e-47cb-86ca-5381bf5aa480,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8
result, different first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a,
9753f0f1-c57e-47cb-86ca-5381bf5aa480,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
BroadcastChannel
A BroadcastChannel is designed to send messages between tabs. In some browsers it can be used for cross-site communication and tracking. |
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party:
931465cb-4696-44be-b033-23aec5d2c855,
27945744-fa6e-413f-a8bf-2a7a0611b5c1,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7,
1cbe1916-da9f-4309-b801-fac176d6e1e7,
546c9727-9932-436c-a129-a7de9fe6f1de
result, different first party:
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9,
dfd72730-58b8-4750-bb50-442519553485,
6d5862f9-070c-4362-9d8e-4929d0fc2515,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76
result, different first party:
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party:
844a737a-74d3-444e-8390-a7a51390ab87,
84f35658-c039-44c4-af4d-a76d45d00aa9,
ff09d30d-911e-4547-9ff6-ed74ebfad13c,
2c972f0b-79f3-4a76-9927-e04fbaf24402,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2
result, different first party:
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party: bcd34bcb-7c83-44a0-9eda-5688246ef304
result, different first party: Error: no BroadcastChannel message
unsupported: false
passed: true
test failed: false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party:
96ac1e6a-6196-4192-8d14-4d4161017c0e,
fcb80954-6b9f-4446-826b-50ee63df5a49,
0c73a977-7e59-4e27-9886-fd27d9af7cb6,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3
result, different first party:
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party:
90e9d075-a493-4589-90a5-cb9ed367a5ff,
3d0759ec-76e7-420f-9fa5-8f9cd1ba98be,
302c7c9a-be1d-4f73-9cc3-4a9fd90d065e,
c6908ef1-96b7-4022-9fb1-6af958c08eab,
9a187200-4907-4ac4-bb1a-a500a9dd6076
result, different first party:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a,
dd5c9e21-e013-4d68-a26f-427893eb7663,
edf66be4-a523-482a-b119-d15528cdff51
result, different first party:
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party:
a94af09e-7597-4227-8646-e09e247d5c53,
8124f977-0794-4d12-ac8c-63584f991299,
52fb10c0-c3f0-4583-8aa1-bb667b988d77,
28d41eef-e045-4404-b29a-660557b14eba,
11098c2f-f6c6-4b5e-b3f6-32576f744002
result, different first party:
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party:
f35ff98f-1c72-41f0-954f-7a7c66323baa,
da711384-b29c-4af1-b951-26d3bbd655e2,
f721fb55-8277-4850-85e8-f99056490543,
576b6726-e0d6-4a4b-9fca-92205c480e69,
d91aa27f-67c8-4e96-81cf-f8c0dbd65cab
result, different first party:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party:
c59e38bc-da54-464d-9edc-7d3b1e8072c3,
ea127664-f0c4-438a-9fd3-bfeaf6f60369,
e40a919a-ea56-446f-99f8-acfe66cea299,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7,
04750426-c791-47cf-8d99-bd4c035ffcd3
result, different first party:
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a,
9753f0f1-c57e-47cb-86ca-5381bf5aa480,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8
result, different first party:
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message,
Error: no BroadcastChannel message
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
CacheStorage
The Cache API is a content storage mechanism originally introduced to support ServiceWorkers. If the same Cache object is accessible to multiple websites, it can be abused to track users. |
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
931465cb-4696-44be-b033-23aec5d2c855,
27945744-fa6e-413f-a8bf-2a7a0611b5c1,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7,
1cbe1916-da9f-4309-b801-fac176d6e1e7,
546c9727-9932-436c-a129-a7de9fe6f1de
result, different first party:
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9,
dfd72730-58b8-4750-bb50-442519553485,
6d5862f9-070c-4362-9d8e-4929d0fc2515,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76
result, different first party:
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
844a737a-74d3-444e-8390-a7a51390ab87,
84f35658-c039-44c4-af4d-a76d45d00aa9,
ff09d30d-911e-4547-9ff6-ed74ebfad13c,
2c972f0b-79f3-4a76-9927-e04fbaf24402,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2
result, different first party:
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party: bcd34bcb-7c83-44a0-9eda-5688246ef304
result, different first party: Error: cacheKeys[0] is undefined
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
96ac1e6a-6196-4192-8d14-4d4161017c0e,
fcb80954-6b9f-4446-826b-50ee63df5a49,
0c73a977-7e59-4e27-9886-fd27d9af7cb6,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3
result, different first party:
Error: cacheKeys[0] is undefined,
Error: cacheKeys[0] is undefined,
Error: cacheKeys[0] is undefined,
Error: cacheKeys[0] is undefined
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
result, different first party:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a,
dd5c9e21-e013-4d68-a26f-427893eb7663,
edf66be4-a523-482a-b119-d15528cdff51
result, different first party:
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
a94af09e-7597-4227-8646-e09e247d5c53,
8124f977-0794-4d12-ac8c-63584f991299,
52fb10c0-c3f0-4583-8aa1-bb667b988d77,
28d41eef-e045-4404-b29a-660557b14eba,
11098c2f-f6c6-4b5e-b3f6-32576f744002
result, different first party:
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
result, different first party:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
c59e38bc-da54-464d-9edc-7d3b1e8072c3,
ea127664-f0c4-438a-9fd3-bfeaf6f60369,
e40a919a-ea56-446f-99f8-acfe66cea299,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7,
04750426-c791-47cf-8d99-bd4c035ffcd3
result, different first party:
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a,
9753f0f1-c57e-47cb-86ca-5381bf5aa480,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8
result, different first party:
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
cookie (HTTP)
The cookie, first introduced by Netscape in 1994, is a small amount of data stored by your browser on a website's behalf. It has legitimate uses, but it is also the classic cross-site tracking mechanism, and today still the most popular method of tracking users across websites. Browsers can stop cookies from being used for cross-site tracking by either blocking or partitioning them. |
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
931465cb-4696-44be-b033-23aec5d2c855_http,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_http,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_http,
1cbe1916-da9f-4309-b801-fac176d6e1e7_http,
546c9727-9932-436c-a129-a7de9fe6f1de_http
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_http,
dfd72730-58b8-4750-bb50-442519553485_http,
6d5862f9-070c-4362-9d8e-4929d0fc2515_http,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_http,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_http
result, different first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_http,
dfd72730-58b8-4750-bb50-442519553485_http,
6d5862f9-070c-4362-9d8e-4929d0fc2515_http,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_http,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
844a737a-74d3-444e-8390-a7a51390ab87_http,
84f35658-c039-44c4-af4d-a76d45d00aa9_http,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_http,
2c972f0b-79f3-4a76-9927-e04fbaf24402_http,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_http
result, different first party:
844a737a-74d3-444e-8390-a7a51390ab87_http,
84f35658-c039-44c4-af4d-a76d45d00aa9_http,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_http,
2c972f0b-79f3-4a76-9927-e04fbaf24402_http,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party: bcd34bcb-7c83-44a0-9eda-5688246ef304_http
result, different first party: null
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
96ac1e6a-6196-4192-8d14-4d4161017c0e_http,
fcb80954-6b9f-4446-826b-50ee63df5a49_http,
0c73a977-7e59-4e27-9886-fd27d9af7cb6_http,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3_http
result, different first party: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
90e9d075-a493-4589-90a5-cb9ed367a5ff_http,
3d0759ec-76e7-420f-9fa5-8f9cd1ba98be_http,
302c7c9a-be1d-4f73-9cc3-4a9fd90d065e_http,
c6908ef1-96b7-4022-9fb1-6af958c08eab_http,
9a187200-4907-4ac4-bb1a-a500a9dd6076_http
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_http,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_http,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_http,
dd5c9e21-e013-4d68-a26f-427893eb7663_http,
edf66be4-a523-482a-b119-d15528cdff51_http
result, different first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_http,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_http,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_http,
dd5c9e21-e013-4d68-a26f-427893eb7663_http,
edf66be4-a523-482a-b119-d15528cdff51_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
a94af09e-7597-4227-8646-e09e247d5c53_http,
8124f977-0794-4d12-ac8c-63584f991299_http,
52fb10c0-c3f0-4583-8aa1-bb667b988d77_http,
28d41eef-e045-4404-b29a-660557b14eba_http,
11098c2f-f6c6-4b5e-b3f6-32576f744002_http
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
f35ff98f-1c72-41f0-954f-7a7c66323baa_http,
da711384-b29c-4af1-b951-26d3bbd655e2_http,
f721fb55-8277-4850-85e8-f99056490543_http,
576b6726-e0d6-4a4b-9fca-92205c480e69_http,
d91aa27f-67c8-4e96-81cf-f8c0dbd65cab_http
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_http,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_http,
e40a919a-ea56-446f-99f8-acfe66cea299_http,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_http,
04750426-c791-47cf-8d99-bd4c035ffcd3_http
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28_http,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_http,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_http,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_http,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_http
result, different first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28_http,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_http,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_http,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_http,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
cookie (JS)
The cookie, first introduced by Netscape in 1994, is a small amount of data stored by your browser on a website's behalf. It has legitimate uses, but it is also the classic cross-site tracking mechanism, and today still the most popular method of tracking users across websites. Browsers can stop cookies from being used for cross-site tracking by either blocking or partitioning them. |
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
931465cb-4696-44be-b033-23aec5d2c855_js,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_js,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_js,
1cbe1916-da9f-4309-b801-fac176d6e1e7_js,
546c9727-9932-436c-a129-a7de9fe6f1de_js
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_js,
dfd72730-58b8-4750-bb50-442519553485_js,
6d5862f9-070c-4362-9d8e-4929d0fc2515_js,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_js,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_js
result, different first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_js,
dfd72730-58b8-4750-bb50-442519553485_js,
6d5862f9-070c-4362-9d8e-4929d0fc2515_js,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_js,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
844a737a-74d3-444e-8390-a7a51390ab87_js,
84f35658-c039-44c4-af4d-a76d45d00aa9_js,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_js,
2c972f0b-79f3-4a76-9927-e04fbaf24402_js,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_js
result, different first party:
844a737a-74d3-444e-8390-a7a51390ab87_js,
84f35658-c039-44c4-af4d-a76d45d00aa9_js,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_js,
2c972f0b-79f3-4a76-9927-e04fbaf24402_js,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party: bcd34bcb-7c83-44a0-9eda-5688246ef304_js
result, different first party: null
unsupported: false
passed: true
test failed: false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
96ac1e6a-6196-4192-8d14-4d4161017c0e_js,
fcb80954-6b9f-4446-826b-50ee63df5a49_js,
0c73a977-7e59-4e27-9886-fd27d9af7cb6_js,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3_js
result, different first party: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
90e9d075-a493-4589-90a5-cb9ed367a5ff_js,
3d0759ec-76e7-420f-9fa5-8f9cd1ba98be_js,
302c7c9a-be1d-4f73-9cc3-4a9fd90d065e_js,
c6908ef1-96b7-4022-9fb1-6af958c08eab_js,
9a187200-4907-4ac4-bb1a-a500a9dd6076_js
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_js,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_js,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_js,
dd5c9e21-e013-4d68-a26f-427893eb7663_js,
edf66be4-a523-482a-b119-d15528cdff51_js
result, different first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_js,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_js,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_js,
dd5c9e21-e013-4d68-a26f-427893eb7663_js,
edf66be4-a523-482a-b119-d15528cdff51_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
a94af09e-7597-4227-8646-e09e247d5c53_js,
8124f977-0794-4d12-ac8c-63584f991299_js,
52fb10c0-c3f0-4583-8aa1-bb667b988d77_js,
28d41eef-e045-4404-b29a-660557b14eba_js,
11098c2f-f6c6-4b5e-b3f6-32576f744002_js
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
f35ff98f-1c72-41f0-954f-7a7c66323baa_js,
da711384-b29c-4af1-b951-26d3bbd655e2_js,
f721fb55-8277-4850-85e8-f99056490543_js,
576b6726-e0d6-4a4b-9fca-92205c480e69_js,
d91aa27f-67c8-4e96-81cf-f8c0dbd65cab_js
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_js,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_js,
e40a919a-ea56-446f-99f8-acfe66cea299_js,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_js,
04750426-c791-47cf-8d99-bd4c035ffcd3_js
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28_js,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_js,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_js,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_js,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_js
result, different first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28_js,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_js,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_js,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_js,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
CookieStore
The Cookie Store API is an alternative asynchronous API for managing cookies, supported by some browsers. |
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same first party:
931465cb-4696-44be-b033-23aec5d2c855,
27945744-fa6e-413f-a8bf-2a7a0611b5c1,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7,
1cbe1916-da9f-4309-b801-fac176d6e1e7,
546c9727-9932-436c-a129-a7de9fe6f1de
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9,
dfd72730-58b8-4750-bb50-442519553485,
6d5862f9-070c-4362-9d8e-4929d0fc2515,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76
result, different first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9,
dfd72730-58b8-4750-bb50-442519553485,
6d5862f9-070c-4362-9d8e-4929d0fc2515,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same first party:
844a737a-74d3-444e-8390-a7a51390ab87,
84f35658-c039-44c4-af4d-a76d45d00aa9,
ff09d30d-911e-4547-9ff6-ed74ebfad13c,
2c972f0b-79f3-4a76-9927-e04fbaf24402,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2
result, different first party:
844a737a-74d3-444e-8390-a7a51390ab87,
84f35658-c039-44c4-af4d-a76d45d00aa9,
ff09d30d-911e-4547-9ff6-ed74ebfad13c,
2c972f0b-79f3-4a76-9927-e04fbaf24402,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same first party: Error: Unsupported
result, different first party: Error: Unsupported
unsupported: true
passed: undefined
test failed: false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a,
dd5c9e21-e013-4d68-a26f-427893eb7663,
edf66be4-a523-482a-b119-d15528cdff51
result, different first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a,
dd5c9e21-e013-4d68-a26f-427893eb7663,
edf66be4-a523-482a-b119-d15528cdff51
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same first party:
c59e38bc-da54-464d-9edc-7d3b1e8072c3,
ea127664-f0c4-438a-9fd3-bfeaf6f60369,
e40a919a-ea56-446f-99f8-acfe66cea299,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7,
04750426-c791-47cf-8d99-bd4c035ffcd3
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a,
9753f0f1-c57e-47cb-86ca-5381bf5aa480,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8
result, different first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a,
9753f0f1-c57e-47cb-86ca-5381bf5aa480,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
CSS cache
CSS stylesheets are cached, and if that cache is shared between websites, it can be used to track users across sites. |
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party:
fake_5551909088546192,
fake_5321220824992066,
fake_7644366392059152,
fake_16376004781941722,
fake_320571356465958
result, different first party:
fake_06147732655789295,
fake_5044953296561088,
fake_0616632340722405,
fake_2435408310341547,
fake_8203426861443321
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party:
fake_25070027547928575,
fake_8278220080758376,
fake_9005179394205003,
fake_40909414247830367,
fake_7098111242670404
result, different first party:
fake_2304495124498327,
fake_6428016229219526,
fake_08235603192330632,
fake_1376828694407375,
fake_16343307204211377
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party:
fake_2047868940891795,
fake_2042022241561301,
fake_014736207101736953,
fake_6004255374186509,
fake_44611222865185285
result, different first party:
fake_027449631257110196,
fake_223044276113475,
fake_6563476919217002,
fake_11855573073925108,
fake_7234397498041434
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party: fake_029790664321492688
result, different first party: fake_404850372837255
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party:
fake_2824565326041004,
fake_7612100399451514,
fake_5883682600044031,
fake_23615057377205395
result, different first party:
fake_8971043068869042,
fake_46437571252738397,
fake_8202449018037599,
fake_5532489896635218
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party:
fake_760170976938296,
fake_7466301189606801,
fake_6847826048718835,
fake_4891025510560496,
fake_438987634961578
result, different first party:
fake_05335263722856887,
fake_6653178859740971,
fake_45132644315077797,
fake_9722880516961401,
fake_04232322754439011
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party:
fake_15731404527089454,
fake_8329639493424303,
fake_6504727108417268,
fake_8560826593184689,
fake_4873625153811405
result, different first party:
fake_9279479948634608,
fake_27936216223593235,
fake_625324585554033,
fake_05541834163690851,
fake_5079133073487909
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party:
fake_22332070768988999,
fake_41590871151387643,
fake_0365887983453943,
fake_08447434312429292,
fake_003079950883044802
result, different first party:
fake_24335262679933511,
fake_5182519437013065,
fake_8305045986218667,
fake_08864028446200889,
fake_5624649468656939
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party:
fake_7880276842475136,
fake_7616242208819475,
fake_30406816800880065,
fake_29991926290018056,
fake_9212889420368466
result, different first party:
fake_36792059690319845,
fake_13378360557362035,
fake_30520012533303364,
fake_23416609465150007,
fake_8684076545755373
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party:
fake_804084059914328,
fake_5328245641204674,
fake_7409653533797822,
fake_5456742374957666,
fake_32085518338470687
result, different first party:
fake_4553224001007279,
fake_7476708903427463,
fake_6935432622412032,
fake_16839500687463982,
fake_325966833282453
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party:
fake_3757945124386355,
fake_04015279121161286,
fake_5514243025906702,
fake_5253575848847232,
fake_7349308163100929
result, different first party:
fake_575021100955577,
fake_8038366171126503,
fake_23678789745420947,
fake_6885591411877185,
fake_5752747687072104
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
favicon cache
A favicon is an icon that represents a website, typically shown in browser tab and bookmarks menu. If the favicon cache is not partitioned, it can be used to track users across websites. |
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1, 1, 1, 1
result, different first party: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 2, 2, 2, 2, 2
result, different first party: 3, 3, 3, 3, 3
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
fetch cache
When a resource is received via the Fetch API, it is frequently cached. That cache can potentially be abused for cross-site tracking. |
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1
result, different first party: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
font cache
Web fonts are sometimes stored in their own cache, which is vulnerable to being abused for cross-site tracking. |
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1
result, different first party: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 2, 2, 2, 2, 2
result, different first party: 3, 3, 3, 3, 3
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
getDirectory
navigator.storage.getDirectory exposes a location for storing files to web content. In some cases, these files may be shared across tabs. |
write: async (secret) => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt", { create: true });
const stream = await fileHandle.createWritable();
await stream.write(secret);
await stream.close();
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt");
const file = await fileHandle.getFile();
return file.text();
} catch (e) {
throw new Error("Unsupported");
}
}
result, same first party:
931465cb-4696-44be-b033-23aec5d2c855,
27945744-fa6e-413f-a8bf-2a7a0611b5c1,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7,
1cbe1916-da9f-4309-b801-fac176d6e1e7,
546c9727-9932-436c-a129-a7de9fe6f1de
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt", { create: true });
const stream = await fileHandle.createWritable();
await stream.write(secret);
await stream.close();
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt");
const file = await fileHandle.getFile();
return file.text();
} catch (e) {
throw new Error("Unsupported");
}
}
result, same first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9,
dfd72730-58b8-4750-bb50-442519553485,
6d5862f9-070c-4362-9d8e-4929d0fc2515,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt", { create: true });
const stream = await fileHandle.createWritable();
await stream.write(secret);
await stream.close();
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt");
const file = await fileHandle.getFile();
return file.text();
} catch (e) {
throw new Error("Unsupported");
}
}
result, same first party:
844a737a-74d3-444e-8390-a7a51390ab87,
84f35658-c039-44c4-af4d-a76d45d00aa9,
ff09d30d-911e-4547-9ff6-ed74ebfad13c,
2c972f0b-79f3-4a76-9927-e04fbaf24402,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt", { create: true });
const stream = await fileHandle.createWritable();
await stream.write(secret);
await stream.close();
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt");
const file = await fileHandle.getFile();
return file.text();
} catch (e) {
throw new Error("Unsupported");
}
}
result, same first party: bcd34bcb-7c83-44a0-9eda-5688246ef304
result, different first party: Error: Unsupported
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt", { create: true });
const stream = await fileHandle.createWritable();
await stream.write(secret);
await stream.close();
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt");
const file = await fileHandle.getFile();
return file.text();
} catch (e) {
throw new Error("Unsupported");
}
}
result, same first party:
96ac1e6a-6196-4192-8d14-4d4161017c0e,
fcb80954-6b9f-4446-826b-50ee63df5a49,
0c73a977-7e59-4e27-9886-fd27d9af7cb6,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt", { create: true });
const stream = await fileHandle.createWritable();
await stream.write(secret);
await stream.close();
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt");
const file = await fileHandle.getFile();
return file.text();
} catch (e) {
throw new Error("Unsupported");
}
}
result, same first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt", { create: true });
const stream = await fileHandle.createWritable();
await stream.write(secret);
await stream.close();
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt");
const file = await fileHandle.getFile();
return file.text();
} catch (e) {
throw new Error("Unsupported");
}
}
result, same first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a,
dd5c9e21-e013-4d68-a26f-427893eb7663,
edf66be4-a523-482a-b119-d15528cdff51
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt", { create: true });
const stream = await fileHandle.createWritable();
await stream.write(secret);
await stream.close();
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt");
const file = await fileHandle.getFile();
return file.text();
} catch (e) {
throw new Error("Unsupported");
}
}
result, same first party: , , , ,
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt", { create: true });
const stream = await fileHandle.createWritable();
await stream.write(secret);
await stream.close();
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt");
const file = await fileHandle.getFile();
return file.text();
} catch (e) {
throw new Error("Unsupported");
}
}
result, same first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt", { create: true });
const stream = await fileHandle.createWritable();
await stream.write(secret);
await stream.close();
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt");
const file = await fileHandle.getFile();
return file.text();
} catch (e) {
throw new Error("Unsupported");
}
}
result, same first party:
c59e38bc-da54-464d-9edc-7d3b1e8072c3,
ea127664-f0c4-438a-9fd3-bfeaf6f60369,
e40a919a-ea56-446f-99f8-acfe66cea299,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7,
04750426-c791-47cf-8d99-bd4c035ffcd3
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt", { create: true });
const stream = await fileHandle.createWritable();
await stream.write(secret);
await stream.close();
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt");
const file = await fileHandle.getFile();
return file.text();
} catch (e) {
throw new Error("Unsupported");
}
}
result, same first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a,
9753f0f1-c57e-47cb-86ca-5381bf5aa480,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
H1 connection
HTTP/1.x are the classic web connection protocols. If these connections are re-used across websites, they can be used to track users. |
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
931465cb-4696-44be-b033-23aec5d2c855,
27945744-fa6e-413f-a8bf-2a7a0611b5c1,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7,
1cbe1916-da9f-4309-b801-fac176d6e1e7,
546c9727-9932-436c-a129-a7de9fe6f1de
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9,
dfd72730-58b8-4750-bb50-442519553485,
6d5862f9-070c-4362-9d8e-4929d0fc2515,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
844a737a-74d3-444e-8390-a7a51390ab87,
84f35658-c039-44c4-af4d-a76d45d00aa9,
ff09d30d-911e-4547-9ff6-ed74ebfad13c,
2c972f0b-79f3-4a76-9927-e04fbaf24402,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: bcd34bcb-7c83-44a0-9eda-5688246ef304
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
96ac1e6a-6196-4192-8d14-4d4161017c0e,
fcb80954-6b9f-4446-826b-50ee63df5a49,
0c73a977-7e59-4e27-9886-fd27d9af7cb6,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3
result, different first party: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
90e9d075-a493-4589-90a5-cb9ed367a5ff,
3d0759ec-76e7-420f-9fa5-8f9cd1ba98be,
302c7c9a-be1d-4f73-9cc3-4a9fd90d065e,
c6908ef1-96b7-4022-9fb1-6af958c08eab,
9a187200-4907-4ac4-bb1a-a500a9dd6076
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a,
dd5c9e21-e013-4d68-a26f-427893eb7663,
edf66be4-a523-482a-b119-d15528cdff51
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
a94af09e-7597-4227-8646-e09e247d5c53,
8124f977-0794-4d12-ac8c-63584f991299,
52fb10c0-c3f0-4583-8aa1-bb667b988d77,
28d41eef-e045-4404-b29a-660557b14eba,
11098c2f-f6c6-4b5e-b3f6-32576f744002
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
f35ff98f-1c72-41f0-954f-7a7c66323baa,
da711384-b29c-4af1-b951-26d3bbd655e2,
f721fb55-8277-4850-85e8-f99056490543,
576b6726-e0d6-4a4b-9fca-92205c480e69,
d91aa27f-67c8-4e96-81cf-f8c0dbd65cab
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
c59e38bc-da54-464d-9edc-7d3b1e8072c3,
ea127664-f0c4-438a-9fd3-bfeaf6f60369,
e40a919a-ea56-446f-99f8-acfe66cea299,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7,
04750426-c791-47cf-8d99-bd4c035ffcd3
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a,
9753f0f1-c57e-47cb-86ca-5381bf5aa480,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
H2 connection
HTTP/2 is a web connection protocol introduced in 2015. Some browsers re-use HTTP/2 connections across websites and can thus be used to track users. |
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
931465cb-4696-44be-b033-23aec5d2c855,
27945744-fa6e-413f-a8bf-2a7a0611b5c1,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7,
1cbe1916-da9f-4309-b801-fac176d6e1e7,
546c9727-9932-436c-a129-a7de9fe6f1de
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9,
dfd72730-58b8-4750-bb50-442519553485,
6d5862f9-070c-4362-9d8e-4929d0fc2515,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
844a737a-74d3-444e-8390-a7a51390ab87,
84f35658-c039-44c4-af4d-a76d45d00aa9,
ff09d30d-911e-4547-9ff6-ed74ebfad13c,
2c972f0b-79f3-4a76-9927-e04fbaf24402,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: bcd34bcb-7c83-44a0-9eda-5688246ef304
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
96ac1e6a-6196-4192-8d14-4d4161017c0e,
fcb80954-6b9f-4446-826b-50ee63df5a49,
0c73a977-7e59-4e27-9886-fd27d9af7cb6,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3
result, different first party: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
90e9d075-a493-4589-90a5-cb9ed367a5ff,
3d0759ec-76e7-420f-9fa5-8f9cd1ba98be,
302c7c9a-be1d-4f73-9cc3-4a9fd90d065e,
c6908ef1-96b7-4022-9fb1-6af958c08eab,
9a187200-4907-4ac4-bb1a-a500a9dd6076
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a,
dd5c9e21-e013-4d68-a26f-427893eb7663,
edf66be4-a523-482a-b119-d15528cdff51
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
a94af09e-7597-4227-8646-e09e247d5c53,
8124f977-0794-4d12-ac8c-63584f991299,
52fb10c0-c3f0-4583-8aa1-bb667b988d77,
28d41eef-e045-4404-b29a-660557b14eba,
11098c2f-f6c6-4b5e-b3f6-32576f744002
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
f35ff98f-1c72-41f0-954f-7a7c66323baa,
da711384-b29c-4af1-b951-26d3bbd655e2,
f721fb55-8277-4850-85e8-f99056490543,
576b6726-e0d6-4a4b-9fca-92205c480e69,
d91aa27f-67c8-4e96-81cf-f8c0dbd65cab
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
c59e38bc-da54-464d-9edc-7d3b1e8072c3,
ea127664-f0c4-438a-9fd3-bfeaf6f60369,
e40a919a-ea56-446f-99f8-acfe66cea299,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7,
04750426-c791-47cf-8d99-bd4c035ffcd3
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a,
9753f0f1-c57e-47cb-86ca-5381bf5aa480,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
H3 connection
HTTP/3 is a new standard HTTP connection protocol, still in draft but widely supported by browsers. If it is not partitioned, it can be used to track users across websites. |
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`);
return await response.text();
}
result, same first party:
8760ab16207e5f173461431a8f094de2,
95c6fdb58b4a1136a38c8ef4f4e11f59,
4974d69834d7c4c9a26112b0836e620c,
df3a92850e9d7f3621a7d8cc66baac5d,
6f2e93334c6ced7ca2bafc4c4e828a38
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`);
return await response.text();
}
result, same first party:
dab9383c7ee3204b2c5f18255c097059,
1b9cfd1402911a0a8fa465a3259e46ea,
de226182fb2b3984cd4d84fbcac35f16,
c2b7c7d6a92c5c093936fe8e6494c035,
7ff83374c0595a92338e2bc69e9ac5b3
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`);
return await response.text();
}
result, same first party:
5f8b5bdb4d7277f95c9513df6f856fd0,
febd0bdc64bf1b83ef0dfa03ac2d6589,
9a2091bd83bd9b0b881edded9d00d4c8,
e81ea118c9f0a6f7cdf5a43fe993fbfe,
73624f7310e42d6ccd61e713dc233d87
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`);
return await response.text();
}
result, same first party: d15a48968adac01fd269852168d89de5
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`);
return await response.text();
}
result, same first party:
4d5f7919cca88c88b09a1a04912be5f6,
66c50c857c4310ec117509c59e4d7ff8,
edaab15451505595879c2a1c795c6072,
b5fee6b9ae071ed5edbce5a20a9f3ee8
result, different first party: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`);
return await response.text();
}
result, same first party:
e11f40778a5452b7604c052089b95eb2,
916887c2b876588348bf082ed0f2595e,
b9a96fb46b0ef15b57198ca4620ff0d3,
680f243d438d70e89c6a89d68c0accaf,
f1685da69cbb4bc64863cae8f1ef8f10
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`);
return await response.text();
}
result, same first party:
7df9a8305e9480b8169e126f19e0a949,
a677833a592c7a26bebcaa97c6099186,
91ac6a3174acb4def8f8a87fca227417,
017430a8013bbd009989f4afc60011eb,
f66797483bd31a87288e08914639d537
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`);
return await response.text();
}
result, same first party:
68ca2d12f521dbe013e12a71e7d9b789,
ea6f5fdb01b858d697f570ff57f7a2f4,
e35b8054f0a53aa97a601fd34793a5e2,
5fe30431a4647fdcb63cbc58d9becb4f,
955af1228c35473324f4b265293a60b4
result, different first party:
b62580602e9353430579b81ced0fd3ce,
013c0d1768989e71058f06e37329c909,
02531d951e822a34f7ec898d1a5f7851,
e175a6aaa4ef71c131e85ebe1ae0cd62,
9c976db3cf246f0ba6b6d5802912891f
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`);
return await response.text();
}
result, same first party: , , , ,
result, different first party: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`);
return await response.text();
}
result, same first party:
009cd3e6f623c5c6894a4aeeee13562c,
b3d03ae6e79c54505f88111468f29e43,
c2120e1c59d56e2ee7878865b052115f,
204e032669202a66fca21e2c318aa4be,
d8c5685003fb058e85bb108f8fdfbe3f
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`);
return await response.text();
}
result, same first party:
cba931da717569c22f2d982e9b42e26f,
34c76a8fba735ab1b1de5715ad7767f3,
abdf0f39d86d4f332aca65eea4e3e88d,
c6363e6d1217dca141929b1cd3677f09,
02b7da09ca0e4919342e95184b5e30c1
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
HSTS cache
The HTTP Strict-Transport-Security response header allows a website to signal that it should only be accessed via HTTPS. The browser remembers this directive in a database, but if this database is not partitioned, then it can be used to track users across websites." |
write: set HSTS flag read: read HSTS flag result, same first party: not tested, not tested, not tested, not tested, not tested result, different first party: Used http, Used http, Used http, Used http, Used http unsupported: false, false, false, false, false passed: true, true, true, true, true test failed: false, false, false, false, false |
write: set HSTS flag read: read HSTS flag result, same first party: not tested, not tested, not tested, not tested, not tested result, different first party: Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https unsupported: false, false, false, false, false passed: false, false, false, false, false test failed: false, false, false, false, false |
write: set HSTS flag read: read HSTS flag result, same first party: not tested, not tested, not tested, not tested, not tested result, different first party: Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https unsupported: false, false, false, false, false passed: false, false, false, false, false test failed: false, false, false, false, false |
write: set HSTS flag read: read HSTS flag result, same first party: not tested result, different first party: Used http unsupported: false passed: true test failed: false |
write: null read: null result, same first party: , , , result, different first party: HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected unsupported: , , , passed: true, true, true, true test failed: false, false, false, false |
write: null read: null result, same first party: , , , , result, different first party: HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected unsupported: , , , , passed: true, true, true, true, true test failed: false, false, false, false, false |
write: set HSTS flag read: read HSTS flag result, same first party: not tested, not tested, not tested, not tested, not tested result, different first party: Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https unsupported: false, false, false, false, false passed: false, false, false, false, false test failed: false, false, false, false, false |
write: set HSTS flag read: read HSTS flag result, same first party: not tested, not tested, not tested, not tested, not tested result, different first party: Used http, Used http, Used http, Used http, Used http unsupported: false, false, false, false, false passed: true, true, true, true, true test failed: false, false, false, false, false |
write: null read: null result, same first party: , , , , result, different first party: HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected unsupported: , , , , passed: true, true, true, true, true test failed: false, false, false, false, false |
write: set HSTS flag read: read HSTS flag result, same first party: not tested, not tested, not tested, not tested, not tested result, different first party: Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https unsupported: false, false, false, false, false passed: false, false, false, false, false test failed: false, false, false, false, false |
write: set HSTS flag read: read HSTS flag result, same first party: not tested, not tested, not tested, not tested, not tested result, different first party: Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https unsupported: false, false, false, false, false passed: false, false, false, false, false test failed: false, false, false, false, false |
|
HSTS cache (fetch)
The HTTP Strict-Transport-Security response header allows a website to signal that it should only be accessed via HTTPS. The browser remembers this directive in a database, but if this database is not partitioned, then it can be used to track users across websites." |
write: set HSTS flag read: read HSTS flag result, same first party: not tested, not tested, not tested, not tested, not tested result, different first party: Used http, Used http, Used http, Used http, Used http unsupported: false, false, false, false, false passed: true, true, true, true, true test failed: false, false, false, false, false |
write: set HSTS flag read: read HSTS flag result, same first party: not tested, not tested, not tested, not tested, not tested result, different first party: Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https unsupported: false, false, false, false, false passed: false, false, false, false, false test failed: false, false, false, false, false |
write: set HSTS flag read: read HSTS flag result, same first party: not tested, not tested, not tested, not tested, not tested result, different first party: Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https unsupported: false, false, false, false, false passed: false, false, false, false, false test failed: false, false, false, false, false |
write: set HSTS flag read: read HSTS flag result, same first party: not tested result, different first party: Used http unsupported: false passed: true test failed: false |
write: null read: null result, same first party: , , , result, different first party: HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected unsupported: , , , passed: true, true, true, true test failed: false, false, false, false |
write: null read: null result, same first party: , , , , result, different first party: HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected unsupported: , , , , passed: true, true, true, true, true test failed: false, false, false, false, false |
write: set HSTS flag read: read HSTS flag result, same first party: not tested, not tested, not tested, not tested, not tested result, different first party: Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https unsupported: false, false, false, false, false passed: false, false, false, false, false test failed: false, false, false, false, false |
write: set HSTS flag read: read HSTS flag result, same first party: not tested, not tested, not tested, not tested, not tested result, different first party: Used http, Used http, Used http, Used http, Used http unsupported: false, false, false, false, false passed: true, true, true, true, true test failed: false, false, false, false, false |
write: null read: null result, same first party: , , , , result, different first party: HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected unsupported: , , , , passed: true, true, true, true, true test failed: false, false, false, false, false |
write: set HSTS flag read: read HSTS flag result, same first party: not tested, not tested, not tested, not tested, not tested result, different first party: Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https unsupported: false, false, false, false, false passed: false, false, false, false, false test failed: false, false, false, false, false |
write: set HSTS flag read: read HSTS flag result, same first party: not tested, not tested, not tested, not tested, not tested result, different first party: Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https, Upgraded to https unsupported: false, false, false, false, false passed: false, false, false, false, false test failed: false, false, false, false, false |
|
iframe cache
An iframe is an element in a web page than allows websites to embed a second web page. Caching of this web page could be abused for cross-site tracking. |
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1
result, different first party: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
image cache
Caching of images in web browsers is a standard behavior. But if that cache leaks between websites, it can be abused for cross-site tracking. |
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1
result, different first party: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 2, 2, 2, 2, 2
result, different first party: 3, 3, 3, 3, 3
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
indexedDB
The IndexedDB API exposes a transactional database to web pages. That database can be used to track users across websites, unless it is partitioned. |
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party:
931465cb-4696-44be-b033-23aec5d2c855,
27945744-fa6e-413f-a8bf-2a7a0611b5c1,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7,
1cbe1916-da9f-4309-b801-fac176d6e1e7,
546c9727-9932-436c-a129-a7de9fe6f1de
result, different first party: undefined
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9,
dfd72730-58b8-4750-bb50-442519553485,
6d5862f9-070c-4362-9d8e-4929d0fc2515,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76
result, different first party: undefined
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party:
844a737a-74d3-444e-8390-a7a51390ab87,
84f35658-c039-44c4-af4d-a76d45d00aa9,
ff09d30d-911e-4547-9ff6-ed74ebfad13c,
2c972f0b-79f3-4a76-9927-e04fbaf24402,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2
result, different first party: undefined
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party: bcd34bcb-7c83-44a0-9eda-5688246ef304
result, different first party: undefined
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party:
96ac1e6a-6196-4192-8d14-4d4161017c0e,
fcb80954-6b9f-4446-826b-50ee63df5a49,
0c73a977-7e59-4e27-9886-fd27d9af7cb6,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3
result, different first party: undefined
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party:
90e9d075-a493-4589-90a5-cb9ed367a5ff,
3d0759ec-76e7-420f-9fa5-8f9cd1ba98be,
302c7c9a-be1d-4f73-9cc3-4a9fd90d065e,
c6908ef1-96b7-4022-9fb1-6af958c08eab,
9a187200-4907-4ac4-bb1a-a500a9dd6076
result, different first party:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a,
dd5c9e21-e013-4d68-a26f-427893eb7663,
edf66be4-a523-482a-b119-d15528cdff51
result, different first party: undefined
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party:
a94af09e-7597-4227-8646-e09e247d5c53,
8124f977-0794-4d12-ac8c-63584f991299,
52fb10c0-c3f0-4583-8aa1-bb667b988d77,
28d41eef-e045-4404-b29a-660557b14eba,
11098c2f-f6c6-4b5e-b3f6-32576f744002
result, different first party: undefined
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party:
f35ff98f-1c72-41f0-954f-7a7c66323baa,
da711384-b29c-4af1-b951-26d3bbd655e2,
f721fb55-8277-4850-85e8-f99056490543,
576b6726-e0d6-4a4b-9fca-92205c480e69,
d91aa27f-67c8-4e96-81cf-f8c0dbd65cab
result, different first party:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party:
c59e38bc-da54-464d-9edc-7d3b1e8072c3,
ea127664-f0c4-438a-9fd3-bfeaf6f60369,
e40a919a-ea56-446f-99f8-acfe66cea299,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7,
04750426-c791-47cf-8d99-bd4c035ffcd3
result, different first party: undefined
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a,
9753f0f1-c57e-47cb-86ca-5381bf5aa480,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8
result, different first party: undefined
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
localStorage
The localStorage API gives websites access to a key-value database that will remain available across visits. If the localStorage API is not partitioned or blocked, it can also be used to track users across websites. |
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party:
931465cb-4696-44be-b033-23aec5d2c855,
27945744-fa6e-413f-a8bf-2a7a0611b5c1,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7,
1cbe1916-da9f-4309-b801-fac176d6e1e7,
546c9727-9932-436c-a129-a7de9fe6f1de
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9,
dfd72730-58b8-4750-bb50-442519553485,
6d5862f9-070c-4362-9d8e-4929d0fc2515,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party:
844a737a-74d3-444e-8390-a7a51390ab87,
84f35658-c039-44c4-af4d-a76d45d00aa9,
ff09d30d-911e-4547-9ff6-ed74ebfad13c,
2c972f0b-79f3-4a76-9927-e04fbaf24402,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party: bcd34bcb-7c83-44a0-9eda-5688246ef304
result, different first party: null
unsupported: false
passed: true
test failed: false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party:
96ac1e6a-6196-4192-8d14-4d4161017c0e,
fcb80954-6b9f-4446-826b-50ee63df5a49,
0c73a977-7e59-4e27-9886-fd27d9af7cb6,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3
result, different first party: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party:
90e9d075-a493-4589-90a5-cb9ed367a5ff,
3d0759ec-76e7-420f-9fa5-8f9cd1ba98be,
302c7c9a-be1d-4f73-9cc3-4a9fd90d065e,
c6908ef1-96b7-4022-9fb1-6af958c08eab,
9a187200-4907-4ac4-bb1a-a500a9dd6076
result, different first party:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a,
dd5c9e21-e013-4d68-a26f-427893eb7663,
edf66be4-a523-482a-b119-d15528cdff51
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party:
a94af09e-7597-4227-8646-e09e247d5c53,
8124f977-0794-4d12-ac8c-63584f991299,
52fb10c0-c3f0-4583-8aa1-bb667b988d77,
28d41eef-e045-4404-b29a-660557b14eba,
11098c2f-f6c6-4b5e-b3f6-32576f744002
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party:
f35ff98f-1c72-41f0-954f-7a7c66323baa,
da711384-b29c-4af1-b951-26d3bbd655e2,
f721fb55-8277-4850-85e8-f99056490543,
576b6726-e0d6-4a4b-9fca-92205c480e69,
d91aa27f-67c8-4e96-81cf-f8c0dbd65cab
result, different first party:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party:
c59e38bc-da54-464d-9edc-7d3b1e8072c3,
ea127664-f0c4-438a-9fd3-bfeaf6f60369,
e40a919a-ea56-446f-99f8-acfe66cea299,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7,
04750426-c791-47cf-8d99-bd4c035ffcd3
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a,
9753f0f1-c57e-47cb-86ca-5381bf5aa480,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
locks
navigator.locks (only supported in some browsers) allows scripts on multiple tabs to coordinate. If this API is not partitioned, it can be used for cross-site tracking. |
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party:
931465cb-4696-44be-b033-23aec5d2c855,
27945744-fa6e-413f-a8bf-2a7a0611b5c1,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7,
1cbe1916-da9f-4309-b801-fac176d6e1e7,
546c9727-9932-436c-a129-a7de9fe6f1de
result, different first party:
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9,
dfd72730-58b8-4750-bb50-442519553485,
6d5862f9-070c-4362-9d8e-4929d0fc2515,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76
result, different first party:
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party:
844a737a-74d3-444e-8390-a7a51390ab87,
84f35658-c039-44c4-af4d-a76d45d00aa9,
ff09d30d-911e-4547-9ff6-ed74ebfad13c,
2c972f0b-79f3-4a76-9927-e04fbaf24402,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2
result, different first party:
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party: bcd34bcb-7c83-44a0-9eda-5688246ef304
result, different first party: Error: LockManager.query: query() is not allowed in this context
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party:
96ac1e6a-6196-4192-8d14-4d4161017c0e,
fcb80954-6b9f-4446-826b-50ee63df5a49,
0c73a977-7e59-4e27-9886-fd27d9af7cb6,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3
result, different first party:
Error: LockManager.query: query() is not allowed in this context,
Error: LockManager.query: query() is not allowed in this context,
Error: LockManager.query: query() is not allowed in this context,
Error: LockManager.query: query() is not allowed in this context
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party:
90e9d075-a493-4589-90a5-cb9ed367a5ff,
3d0759ec-76e7-420f-9fa5-8f9cd1ba98be,
302c7c9a-be1d-4f73-9cc3-4a9fd90d065e,
c6908ef1-96b7-4022-9fb1-6af958c08eab,
9a187200-4907-4ac4-bb1a-a500a9dd6076
result, different first party:
Error: LockManager.query: query() is not allowed in this context,
Error: LockManager.query: query() is not allowed in this context,
Error: LockManager.query: query() is not allowed in this context,
Error: LockManager.query: query() is not allowed in this context,
Error: LockManager.query: query() is not allowed in this context
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a,
dd5c9e21-e013-4d68-a26f-427893eb7663,
edf66be4-a523-482a-b119-d15528cdff51
result, different first party:
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party:
a94af09e-7597-4227-8646-e09e247d5c53,
8124f977-0794-4d12-ac8c-63584f991299,
52fb10c0-c3f0-4583-8aa1-bb667b988d77,
28d41eef-e045-4404-b29a-660557b14eba,
11098c2f-f6c6-4b5e-b3f6-32576f744002
result, different first party:
Error: undefined is not an object (evaluating 'queryResult.held[0].name'),
Error: undefined is not an object (evaluating 'queryResult.held[0].name'),
Error: undefined is not an object (evaluating 'queryResult.held[0].name'),
Error: undefined is not an object (evaluating 'queryResult.held[0].name'),
Error: undefined is not an object (evaluating 'queryResult.held[0].name')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party:
f35ff98f-1c72-41f0-954f-7a7c66323baa,
da711384-b29c-4af1-b951-26d3bbd655e2,
f721fb55-8277-4850-85e8-f99056490543,
576b6726-e0d6-4a4b-9fca-92205c480e69,
d91aa27f-67c8-4e96-81cf-f8c0dbd65cab
result, different first party:
Error: LockManager.query: query() is not allowed in this context,
Error: LockManager.query: query() is not allowed in this context,
Error: LockManager.query: query() is not allowed in this context,
Error: LockManager.query: query() is not allowed in this context,
Error: LockManager.query: query() is not allowed in this context
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party:
c59e38bc-da54-464d-9edc-7d3b1e8072c3,
ea127664-f0c4-438a-9fd3-bfeaf6f60369,
e40a919a-ea56-446f-99f8-acfe66cea299,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7,
04750426-c791-47cf-8d99-bd4c035ffcd3
result, different first party:
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a,
9753f0f1-c57e-47cb-86ca-5381bf5aa480,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8
result, different first party:
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name'),
Error: Cannot read properties of undefined (reading 'name')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
prefetch cache
A <link rel='prefetch'...> suggests to browsers they should fetch a resource ahead of time and cache it. But if browsers don't partition this cache, it can be used to track users across websites. |
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
result, different first party:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
result, different first party:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
result, different first party:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
result, different first party:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
script cache
Caching of scripts in web browsers is a standard behavior. But if that cache leaks between websites, it can be abused for cross-site tracking. |
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1
result, different first party: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 2, 2, 2, 2, 2
result, different first party: 3, 3, 3, 3, 3
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
ServiceWorker
The ServiceWorker API allows websites to run code in the background and store content in the browser for offline use. If a ServiceWorker can be accessed from multiple websites, it can be abused to track users across sites. |
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
console.log("trying to register the serviceworker now...");
const registration = await Promise.race([
navigator.serviceWorker.register('serviceWorker.js'),
sleepMs(500)
]);
if (registration === undefined) {
// We timed out or otherwise failed.
throw new Error("ServiceWorker registration failed");
}
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party:
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
console.log("trying to register the serviceworker now...");
const registration = await Promise.race([
navigator.serviceWorker.register('serviceWorker.js'),
sleepMs(500)
]);
if (registration === undefined) {
// We timed out or otherwise failed.
throw new Error("ServiceWorker registration failed");
}
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party:
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
console.log("trying to register the serviceworker now...");
const registration = await Promise.race([
navigator.serviceWorker.register('serviceWorker.js'),
sleepMs(500)
]);
if (registration === undefined) {
// We timed out or otherwise failed.
throw new Error("ServiceWorker registration failed");
}
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party:
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
console.log("trying to register the serviceworker now...");
const registration = await Promise.race([
navigator.serviceWorker.register('serviceWorker.js'),
sleepMs(500)
]);
if (registration === undefined) {
// We timed out or otherwise failed.
throw new Error("ServiceWorker registration failed");
}
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party:
result, different first party:
unsupported: false
passed: undefined
test failed: true
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
console.log("trying to register the serviceworker now...");
const registration = await Promise.race([
navigator.serviceWorker.register('serviceWorker.js'),
sleepMs(500)
]);
if (registration === undefined) {
// We timed out or otherwise failed.
throw new Error("ServiceWorker registration failed");
}
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: , , ,
result, different first party: , , ,
unsupported: false, false, false, false
passed: undefined
test failed: true, true, true, true
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
console.log("trying to register the serviceworker now...");
const registration = await Promise.race([
navigator.serviceWorker.register('serviceWorker.js'),
sleepMs(500)
]);
if (registration === undefined) {
// We timed out or otherwise failed.
throw new Error("ServiceWorker registration failed");
}
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party:
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined
result, different first party:
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
console.log("trying to register the serviceworker now...");
const registration = await Promise.race([
navigator.serviceWorker.register('serviceWorker.js'),
sleepMs(500)
]);
if (registration === undefined) {
// We timed out or otherwise failed.
throw new Error("ServiceWorker registration failed");
}
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party:
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
console.log("trying to register the serviceworker now...");
const registration = await Promise.race([
navigator.serviceWorker.register('serviceWorker.js'),
sleepMs(500)
]);
if (registration === undefined) {
// We timed out or otherwise failed.
throw new Error("ServiceWorker registration failed");
}
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: , , , ,
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: undefined
test failed: true, true, true, true, true
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
console.log("trying to register the serviceworker now...");
const registration = await Promise.race([
navigator.serviceWorker.register('serviceWorker.js'),
sleepMs(500)
]);
if (registration === undefined) {
// We timed out or otherwise failed.
throw new Error("ServiceWorker registration failed");
}
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party:
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined
result, different first party:
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
console.log("trying to register the serviceworker now...");
const registration = await Promise.race([
navigator.serviceWorker.register('serviceWorker.js'),
sleepMs(500)
]);
if (registration === undefined) {
// We timed out or otherwise failed.
throw new Error("ServiceWorker registration failed");
}
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party:
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
console.log("trying to register the serviceworker now...");
const registration = await Promise.race([
navigator.serviceWorker.register('serviceWorker.js'),
sleepMs(500)
]);
if (registration === undefined) {
// We timed out or otherwise failed.
throw new Error("ServiceWorker registration failed");
}
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party:
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
SharedWorker
The SharedWorker API allows scripts from multiple tabs to share a background thread of computation. If SharedWorker is not partitioned, then it can be abused to shared data between websites in your browser. |
write: async (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
// console.log("worker", worker);
const messagePromise = new Promise((resolve) => {
worker.port.onmessage = (e) => resolve(e.data);
});
worker.port.postMessage(secret);
await messagePromise;
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
const messagePromise = new Promise((resolve, reject) => {
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject(new Error("no SharedWorker message received")), 200);
});
worker.port.postMessage("request");
const message = await messagePromise;
if (message === "none") {
throw new Error("Unsupported");
}
return message;
}
result, same first party:
931465cb-4696-44be-b033-23aec5d2c855,
27945744-fa6e-413f-a8bf-2a7a0611b5c1,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7,
1cbe1916-da9f-4309-b801-fac176d6e1e7,
546c9727-9932-436c-a129-a7de9fe6f1de
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
// console.log("worker", worker);
const messagePromise = new Promise((resolve) => {
worker.port.onmessage = (e) => resolve(e.data);
});
worker.port.postMessage(secret);
await messagePromise;
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
const messagePromise = new Promise((resolve, reject) => {
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject(new Error("no SharedWorker message received")), 200);
});
worker.port.postMessage("request");
const message = await messagePromise;
if (message === "none") {
throw new Error("Unsupported");
}
return message;
}
result, same first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9,
dfd72730-58b8-4750-bb50-442519553485,
6d5862f9-070c-4362-9d8e-4929d0fc2515,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
// console.log("worker", worker);
const messagePromise = new Promise((resolve) => {
worker.port.onmessage = (e) => resolve(e.data);
});
worker.port.postMessage(secret);
await messagePromise;
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
const messagePromise = new Promise((resolve, reject) => {
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject(new Error("no SharedWorker message received")), 200);
});
worker.port.postMessage("request");
const message = await messagePromise;
if (message === "none") {
throw new Error("Unsupported");
}
return message;
}
result, same first party:
844a737a-74d3-444e-8390-a7a51390ab87,
84f35658-c039-44c4-af4d-a76d45d00aa9,
ff09d30d-911e-4547-9ff6-ed74ebfad13c,
2c972f0b-79f3-4a76-9927-e04fbaf24402,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
// console.log("worker", worker);
const messagePromise = new Promise((resolve) => {
worker.port.onmessage = (e) => resolve(e.data);
});
worker.port.postMessage(secret);
await messagePromise;
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
const messagePromise = new Promise((resolve, reject) => {
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject(new Error("no SharedWorker message received")), 200);
});
worker.port.postMessage("request");
const message = await messagePromise;
if (message === "none") {
throw new Error("Unsupported");
}
return message;
}
result, same first party: bcd34bcb-7c83-44a0-9eda-5688246ef304
result, different first party: Error: Unsupported
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
// console.log("worker", worker);
const messagePromise = new Promise((resolve) => {
worker.port.onmessage = (e) => resolve(e.data);
});
worker.port.postMessage(secret);
await messagePromise;
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
const messagePromise = new Promise((resolve, reject) => {
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject(new Error("no SharedWorker message received")), 200);
});
worker.port.postMessage("request");
const message = await messagePromise;
if (message === "none") {
throw new Error("Unsupported");
}
return message;
}
result, same first party:
96ac1e6a-6196-4192-8d14-4d4161017c0e,
fcb80954-6b9f-4446-826b-50ee63df5a49,
0c73a977-7e59-4e27-9886-fd27d9af7cb6,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
// console.log("worker", worker);
const messagePromise = new Promise((resolve) => {
worker.port.onmessage = (e) => resolve(e.data);
});
worker.port.postMessage(secret);
await messagePromise;
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
const messagePromise = new Promise((resolve, reject) => {
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject(new Error("no SharedWorker message received")), 200);
});
worker.port.postMessage("request");
const message = await messagePromise;
if (message === "none") {
throw new Error("Unsupported");
}
return message;
}
result, same first party:
90e9d075-a493-4589-90a5-cb9ed367a5ff,
3d0759ec-76e7-420f-9fa5-8f9cd1ba98be,
302c7c9a-be1d-4f73-9cc3-4a9fd90d065e,
c6908ef1-96b7-4022-9fb1-6af958c08eab,
9a187200-4907-4ac4-bb1a-a500a9dd6076
result, different first party:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
// console.log("worker", worker);
const messagePromise = new Promise((resolve) => {
worker.port.onmessage = (e) => resolve(e.data);
});
worker.port.postMessage(secret);
await messagePromise;
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
const messagePromise = new Promise((resolve, reject) => {
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject(new Error("no SharedWorker message received")), 200);
});
worker.port.postMessage("request");
const message = await messagePromise;
if (message === "none") {
throw new Error("Unsupported");
}
return message;
}
result, same first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a,
dd5c9e21-e013-4d68-a26f-427893eb7663,
edf66be4-a523-482a-b119-d15528cdff51
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
// console.log("worker", worker);
const messagePromise = new Promise((resolve) => {
worker.port.onmessage = (e) => resolve(e.data);
});
worker.port.postMessage(secret);
await messagePromise;
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
const messagePromise = new Promise((resolve, reject) => {
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject(new Error("no SharedWorker message received")), 200);
});
worker.port.postMessage("request");
const message = await messagePromise;
if (message === "none") {
throw new Error("Unsupported");
}
return message;
}
result, same first party:
a94af09e-7597-4227-8646-e09e247d5c53,
8124f977-0794-4d12-ac8c-63584f991299,
52fb10c0-c3f0-4583-8aa1-bb667b988d77,
28d41eef-e045-4404-b29a-660557b14eba,
11098c2f-f6c6-4b5e-b3f6-32576f744002
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
// console.log("worker", worker);
const messagePromise = new Promise((resolve) => {
worker.port.onmessage = (e) => resolve(e.data);
});
worker.port.postMessage(secret);
await messagePromise;
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
const messagePromise = new Promise((resolve, reject) => {
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject(new Error("no SharedWorker message received")), 200);
});
worker.port.postMessage("request");
const message = await messagePromise;
if (message === "none") {
throw new Error("Unsupported");
}
return message;
}
result, same first party:
f35ff98f-1c72-41f0-954f-7a7c66323baa,
da711384-b29c-4af1-b951-26d3bbd655e2,
f721fb55-8277-4850-85e8-f99056490543,
576b6726-e0d6-4a4b-9fca-92205c480e69,
d91aa27f-67c8-4e96-81cf-f8c0dbd65cab
result, different first party:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
// console.log("worker", worker);
const messagePromise = new Promise((resolve) => {
worker.port.onmessage = (e) => resolve(e.data);
});
worker.port.postMessage(secret);
await messagePromise;
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
const messagePromise = new Promise((resolve, reject) => {
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject(new Error("no SharedWorker message received")), 200);
});
worker.port.postMessage("request");
const message = await messagePromise;
if (message === "none") {
throw new Error("Unsupported");
}
return message;
}
result, same first party:
c59e38bc-da54-464d-9edc-7d3b1e8072c3,
ea127664-f0c4-438a-9fd3-bfeaf6f60369,
e40a919a-ea56-446f-99f8-acfe66cea299,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7,
04750426-c791-47cf-8d99-bd4c035ffcd3
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
// console.log("worker", worker);
const messagePromise = new Promise((resolve) => {
worker.port.onmessage = (e) => resolve(e.data);
});
worker.port.postMessage(secret);
await messagePromise;
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
const messagePromise = new Promise((resolve, reject) => {
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject(new Error("no SharedWorker message received")), 200);
});
worker.port.postMessage("request");
const message = await messagePromise;
if (message === "none") {
throw new Error("Unsupported");
}
return message;
}
result, same first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a,
9753f0f1-c57e-47cb-86ca-5381bf5aa480,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
TLS Session ID
The TLS protocol is used by HTTPS to make connections secure. If the browser were to re-use a TLS session, then the session ID could be used to track users across websites. |
write: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
result, same first party:
04605bb88539b9e1807ced9a05402e98e514addc5703c8fac8b8f255247d8705,
6ec9c08b79555aa74716a421eeb9b4c7f5560cc562039a043cc73e7e70a49b17,
d87f92fe104c523d7b96c3df85bbf263ee264c961cbffedb97ed926c95f06914,
99262c21c430a0656da3987d03a31db169fc6b1d01b8dad7be2e13d5a85de136,
6f598ba095604d9e3e155368f7c20b9d4274ee386abead998b4bca86195d8077
result, different first party:
38cbe841f6d0eb257227ef872df7e905f4fba09edc870b6bb9654e805145d27e,
cb524db5cbd20f96476eb96ea49c76eeea67147db405d4b80c0461956647c5a9,
ce7a61d96e511e9bf033af28aef11461c2f740b41c470b2c0e55cb2cf42119a7,
29d035527f6c8905db30311da00acb00d67924ff7902c37992d70cecde572d11,
2f5f792b81c766c2a11bd0d09df14c8dba568cf9cdd6a2796e6255d212ef517d
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
result, same first party:
751805728adc7b1d90b7788cef15c6a6f5a08a4f3a60cd27a686e2d40b9b133f,
01a4ea54c5291e228407dc6e55af1b2aa5c2d82067eda9fe5423a04fd1ccdf67,
5af6636e07aa248e05be0b1647e61d089551ca763ffd8fdc12ff54779164838c,
32f9dd6266c0cb6414a6a28946a0a84cfe35a6e727c10d9c23a21a29aee95094,
091a7e59448cc76ad60a81ed299af860e6d5f6e448331af1fe15631335e90827
result, different first party:
8084ad72d1eb432bb4cdeb01f656646b13f91448b756e7f6e7b1127a3df247d2,
6bb9c3b2c1fe7e93f5be8119168e68468df1aba851aa72d2e82d4ac0ed57e5f2,
16e32c85a5a56d5b0c700e53bf5e22be624adcc77f857ab93ebd819d35f938fe,
ee159171161b19e7c4f9c0474d0e3d5843d50a8e79637a175c09ce785a6a17dc,
d9036a1e3a9008449cba06cac08c6f3031275721c3412f41f9a15e715dbe53f7
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
result, same first party:
1ddb9ea5a0100bc276f4d8410b4552f4a94c6d45777d20427b43b1fe20c882bb,
45b2e2852437adf7de4da36ceff11389c4f5978b77bcaebde1d0bcab94b02a9a,
f10c1170da3c1e717b6b10e9944eccf797bd556ba5c357b4c57f1c33dd6c2186,
160b08d6863d591589c6c0d851084d36af4441ee1df5a28345cf0491079ee920,
6f7d6a7a78c3adc63d938d0ea1ae9f5e9418ecc876a90d024a40f5d5e0d88144
result, different first party:
d04d997d16ce98788de14a3c72d545069392db0256553605c220bbadd71dfb28,
7df9f62faaef3232697f0539dde45841f624ed973103b0131f55086dd6e6b17c,
82c739853e8ff5dbc9895687076634091f99b982c325148eefaa4cf3585b06db,
1f3c4d276f49a25f954abf94136be52524ae79dcd9b48977d1a80083513b19cb,
136bb537715128585596e35694bb4a94405ed28e7f9d6812f4c0307ba02b5388
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
result, same first party: 109df9d7b26d1d53ca226a6bd3e3150c792d010e3248231b7e05af272fd31e70
result, different first party: 17bc274c70dce757d07bb5ec9d01ebb2f22e57816275b11ce9d659ccf70cfdf1
unsupported: false
passed: true
test failed: false
|
write: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
result, same first party:
6437844c1a644f60ef90774ddc6b288aad4afd230b25e3dc81188414009b6faa,
9d31ed936598d272b9dc8697c9d5309600516236de74194c3f8246f5f84c4d4c,
f74a2969cea187fd8c4d961a65cf5486db2d190a25ca8528124a1225c5cc323a,
fb810bf9c37dcf07fadaedf85fba2a0908e2c03ee0fdbbfa200368751598f8c6
result, different first party:
bc7a08dc54a93e7e94801ac46e4f3ca64fc4b715fe9b90a4fa9385c010ffef47,
588db4ab527cc098247b1e2929da30708547a0513f0e9fa620ac249953e63ebd,
bc607ecbd52d39b774a48f97e4565b2346e0bfa2fe671f32b767505a8a11347a,
759803aad6d8e9bddd649d06c54988aea348f7b008122a5f8ec1a1ba54e3ba62
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
result, same first party:
21df004c8c057befb2657f84bd7cea8635e4b962be9ddf6cf6fbaa2a5128f0f6,
465751569f8bd4585cdc7b8b8ceb0626197905c0a92de434a60189c877bb4ffb,
30979656b06bea017c1299e57bf9e9a0e04a8894a03582ec6304998b31875854,
211ee418c4b40551d292fd00b4fdb1863f79c6da33fbfc4c5f15a08667401c6a,
9bb73cadc71b260007206b05da27579784e2740d9d59c6f13cb15eeb287ac6cf
result, different first party:
b4ba33bcc814ea97a9e223757bd696e5dbb3af0976792e0f5fd9026742b5a191,
300f2681924c3f72f0999762d16f374cbb47b6b3f60f210d53764284c88cd0b2,
bf74c1ab236727a3b8552d6aa808a7eb8d5d10bf3cf9a3860892cf025201c50d,
b3a1bef9403966cbd74ba050ebbc0cbe2cb63eecc3e8ce97c51d76124231e9d3,
b584e7029961b88df1ce8f8ae894692aae106f0eec3da56df0b5959fc896bc25
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
result, same first party:
cba88fa6b34425264929d20651e99fc27ef7d0674262ceff900c61a651c0a14d,
e04978993bbed38c8af337a8be8f153de2ca6e425547b082983cae5db6aa0fea,
3c5c21460a90bbe85663eae3aa504bc162237a10cb0091350431a8892454aa3f,
32abc10a6097b833432ffbc882e0d30aad43040f1e9c85d4c5240e824760ee43,
7749c52aa5a8cdd9bafa2442e36a55109c236f42fdb06817c1dee05500cf5071
result, different first party:
8a3e200b1b6a1d2cf9a8bafe21f15b96f94d2b674cadd2164fcef6503b6c8224,
104d79c525b5a7b3fb96dc270a0f3c5a8ce213cb96a15c9c044c3bb24a710fdb,
3ef52029840b2c4c409f9fd2239f9b573461edf0011c85b3a04e0e47a7500ae5,
3bc21b366e44827e5556571fbde41c1fa271d01fa6e1109a2f8fcaa40a1683c5,
aa064d027fa1441b6697b6ff6d552fd0e8cf6fae9e3d8fe05d17458f70a19f7b
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
result, same first party:
b006f8582c146188d838bf6d3768ff322576a41200d5554ab32f4287616771f9,
90f2c1a04c8105e4c27c893b9e26091828b2b41c42d06d58f9d6ff500b093f11,
873db37b590bf7785ee138e852128307c72717ca04bbe4bac55d4ac9e206c1fb,
ead14869ba09692e06f661823f5c2f1ff9286d9e0bcb8deb8e4cc88f7a8bf0bb,
3f59911fce2c8c67a15e6216ed155f907a32377dab8243f0ace90da4070a86e5
result, different first party:
9f89553841004b1dde86a7838c719a9a983e7d4a4e9b19f69f05b7e1136ef771,
1808216624c102572d2eb1c2130ce39cf623bbb346186d470db7aee51d6ffd42,
c5e9a2fa11b5db03ad7cd41b532b4d394a0b6185717145e54bdc72034257be7f,
27e6e97800dad68ba324a0ec4cbd44151ddbfd7ce2e5a528962f9f010027f9ce,
f0763e0a45c7a807adca3141c34a8e3d36228fc233962a8df2029c9a3bc8bfa9
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
result, same first party:
319bd5d65cf639e3725d7227f4bc5c631192d8a231149f2e1e6a7b78f9a3d335,
88e10cc8c9599b307f6ff6e82b3f998c36ee01cf550c1bc648b2021ccdbbf3a6,
2e54e9fd3eb739fc9d9b4c2286daf59ca5797140eae3e8d26b52d1b58065c523,
a76a98fc46912f98e1be108bbe6fb4d1ec4c61e5c431f3e8661a2e946b1be1a1,
20ec74225d87bf8e66bc6d5e0728060628a1c000c9058a4029a69a73d2fc643a
result, different first party:
e445f1c1636868877e7e17095b8fcab49124e237e1da2c31e09699dc519650d3,
e1511020a62a70210c768d6e06157cb6f5068377fcbd0e7cf2a37390dc13a7c6,
86c84cf9d98c3f3c420a5b4efa3b530cadb32dfbd8875b52983a6109765a9d2f,
1747c53b9aa14d3ce0bf10107bd905fe4332842ffa71eeb00cadb9c95730c022,
865a10a90917e7c384dd418fb323ea444167fbdcc0f7d17c168a757aeb3991bd
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
result, same first party:
31c2c13d0e21013c3ab954bde314b4087e6405dc60dfd3e044ad9315285c17b9,
d5b9999fa4a1487fa903630d71cbab55cb9e03796bfcb6eda2ed650ad5b2aaf0,
12201c1263c0ad989067ca21546ca7236cb2eb76dceb95be514a6da112a6cb0c,
d2523b536cd5f5804ad977985ac82470112a6cc6e3aa96a4b41edf8e3506c11f,
d31c4facbd432d2b116b76b0ecce43826096648f36f17ab1a4bff1662fc70490
result, different first party:
bf7fa18adf0ae32acd14a7fa1b3eea512d8dec9f49d16c2f373a9b7b0549b173,
e839868ede24e37c8730b070d1b12dfeecbaa96491f49487f9c5988558223bd4,
e13b7552b1a45b93baee47cc390ddc756a15f2c1d050e45384e58dd64c802b86,
9307329529f13a559ded67c42eeaf034737609cd17861e091f203f03f3d3da70,
140a46c757151a83a855b927dc8d46386cdc7e849ce550c7727b5a921ee5b642
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
result, same first party:
a0645a8ef4e613c608a2fdf1cee619c166b13b535634ac799adfd115bc27784b,
8032013c864309353211f25880fc78754446d4b454b4c402c83dde2d0c42f58b,
779b68f78fe5d7dbd8e24b25772940982d4e9b7593c6e8a575317de58fc76c6b,
3c0c11cdf104a46e0477a9fb2e64abd9537ce785f81710936aaba25b0c8f3681,
855eceee1144e59569e6d871e145f52c488dcc883f093fd5afe59bb272cd184f
result, different first party:
9c96af9423362dcc12f3cd6c135a0d118c7f8b2748c089862a9154cb13675bce,
fe9f4c4af57a83f7c8984d63caad34b26f9d75ac4b991bf284d6b3abdb3213ce,
4098eaf771cc20abbb69d68ea7fea727064651a3ac03c2f6506e7ac61c67f7ba,
b8c137320dbe5b422c05d239658ef61486cab686901745fb3f5ed15dbeba15f0,
80767d5a1cf650b221a493d357f08e330266b088df55684fbb8387a80a9d7b9f
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
XMLHttpRequest cache
Similar to the newer Fetch API, any resource received may be cached by the browser. The cache is potentially vulnerable to cross-site tracking attack. |
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1
result, different first party: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1
result, different first party: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
Navigation testsWhich browsers prevent websites from sharing tracking data when you click on a link?
When you click a hyperlink to navigate your browser from one site to another, certain browser APIs allow the first site to communicate to the second site. These privacy vulnerabilities can be fixed by introducing new limits on how much data is transfered between sites.', |
|||||||||||
|
document.referrer
The Referer [sic] request header is a mechanism used by browsers to let a website know where the user is visiting from. This header is inherently tracking users across websites. In recent times, browsers have switched to a policy of trimming a referrer to convey less tracking information, but Referer continues to convey cross-site tracking data by default. |
write: (secret) => { /* do nothing */ }
read: () => document.referrer
result, same first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
result, different first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => { /* do nothing */ }
read: () => document.referrer
result, same first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
result, different first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => { /* do nothing */ }
read: () => document.referrer
result, same first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
result, different first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => { /* do nothing */ }
read: () => document.referrer
result, same first party: https://test-pages.privacytests2.org/
result, different first party: https://test-pages.privacytests2.org/
unsupported: false
passed: false
test failed: false
|
write: (secret) => { /* do nothing */ }
read: () => document.referrer
result, same first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
result, different first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
unsupported: false, false, false, false
passed: false, false, false, false
test failed: false, false, false, false
|
write: (secret) => { /* do nothing */ }
read: () => document.referrer
result, same first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
result, different first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => { /* do nothing */ }
read: () => document.referrer
result, same first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
result, different first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => { /* do nothing */ }
read: () => document.referrer
result, same first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
result, different first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => { /* do nothing */ }
read: () => document.referrer
result, same first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
result, different first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => { /* do nothing */ }
read: () => document.referrer
result, same first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
result, different first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => { /* do nothing */ }
read: () => document.referrer
result, same first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
result, different first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
sessionStorage
The sessionStorage API is similar to the localStorage API, but it does not persist across tabs or across browser sessions. Nonetheless, it can be used to track users if they navigate from one website to another. This tracking can be thwarted by partitioning sessionStorage between websites. |
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party:
931465cb-4696-44be-b033-23aec5d2c855,
27945744-fa6e-413f-a8bf-2a7a0611b5c1,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7,
1cbe1916-da9f-4309-b801-fac176d6e1e7,
546c9727-9932-436c-a129-a7de9fe6f1de
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party:
e71e130c-0b89-4d10-ab4f-886da21a7cf9,
dfd72730-58b8-4750-bb50-442519553485,
6d5862f9-070c-4362-9d8e-4929d0fc2515,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party:
844a737a-74d3-444e-8390-a7a51390ab87,
84f35658-c039-44c4-af4d-a76d45d00aa9,
ff09d30d-911e-4547-9ff6-ed74ebfad13c,
2c972f0b-79f3-4a76-9927-e04fbaf24402,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party: bcd34bcb-7c83-44a0-9eda-5688246ef304
result, different first party: null
unsupported: false
passed: true
test failed: false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party:
96ac1e6a-6196-4192-8d14-4d4161017c0e,
fcb80954-6b9f-4446-826b-50ee63df5a49,
0c73a977-7e59-4e27-9886-fd27d9af7cb6,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3
result, different first party: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party:
90e9d075-a493-4589-90a5-cb9ed367a5ff,
3d0759ec-76e7-420f-9fa5-8f9cd1ba98be,
302c7c9a-be1d-4f73-9cc3-4a9fd90d065e,
c6908ef1-96b7-4022-9fb1-6af958c08eab,
9a187200-4907-4ac4-bb1a-a500a9dd6076
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party:
d8c3b983-124d-4e71-a763-0d6ed7a989d4,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a,
dd5c9e21-e013-4d68-a26f-427893eb7663,
edf66be4-a523-482a-b119-d15528cdff51
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party:
a94af09e-7597-4227-8646-e09e247d5c53,
8124f977-0794-4d12-ac8c-63584f991299,
52fb10c0-c3f0-4583-8aa1-bb667b988d77,
28d41eef-e045-4404-b29a-660557b14eba,
11098c2f-f6c6-4b5e-b3f6-32576f744002
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party:
f35ff98f-1c72-41f0-954f-7a7c66323baa,
da711384-b29c-4af1-b951-26d3bbd655e2,
f721fb55-8277-4850-85e8-f99056490543,
576b6726-e0d6-4a4b-9fca-92205c480e69,
d91aa27f-67c8-4e96-81cf-f8c0dbd65cab
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party:
c59e38bc-da54-464d-9edc-7d3b1e8072c3,
ea127664-f0c4-438a-9fd3-bfeaf6f60369,
e40a919a-ea56-446f-99f8-acfe66cea299,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7,
04750426-c791-47cf-8d99-bd4c035ffcd3
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party:
70ee341f-5d31-44c5-80a4-1f53046c2d28,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a,
9753f0f1-c57e-47cb-86ca-5381bf5aa480,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
window.name
The window.name API allows websites to store data that will persist after the user has navigated the tab to a different website. This mechanism could be partitioned so that data is not allowed to persist between websites. |
write: (secret) => window.name = "name_" + secret read: () => window.name result, same first party: name_931465cb-4696-44be-b033-23aec5d2c855, name_27945744-fa6e-413f-a8bf-2a7a0611b5c1, name_6a9adedc-9d47-4c0b-b8d2-7d86480b78b7, name_1cbe1916-da9f-4309-b801-fac176d6e1e7, name_546c9727-9932-436c-a129-a7de9fe6f1de result, different first party: , , , , unsupported: false, false, false, false, false passed: true, true, true, true, true test failed: false, false, false, false, false |
write: (secret) => window.name = "name_" + secret read: () => window.name result, same first party: name_e71e130c-0b89-4d10-ab4f-886da21a7cf9, name_dfd72730-58b8-4750-bb50-442519553485, name_6d5862f9-070c-4362-9d8e-4929d0fc2515, name_b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98, name_7b82c7fa-b0cc-4e75-9cce-4e4792ccef76 result, different first party: name_e71e130c-0b89-4d10-ab4f-886da21a7cf9, name_dfd72730-58b8-4750-bb50-442519553485, name_6d5862f9-070c-4362-9d8e-4929d0fc2515, name_b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98, name_7b82c7fa-b0cc-4e75-9cce-4e4792ccef76 unsupported: false, false, false, false, false passed: false, false, false, false, false test failed: false, false, false, false, false |
write: (secret) => window.name = "name_" + secret read: () => window.name result, same first party: name_844a737a-74d3-444e-8390-a7a51390ab87, name_84f35658-c039-44c4-af4d-a76d45d00aa9, name_ff09d30d-911e-4547-9ff6-ed74ebfad13c, name_2c972f0b-79f3-4a76-9927-e04fbaf24402, name_ea978023-f4a0-44c8-aff3-b50e8b90a3d2 result, different first party: name_844a737a-74d3-444e-8390-a7a51390ab87, name_84f35658-c039-44c4-af4d-a76d45d00aa9, name_ff09d30d-911e-4547-9ff6-ed74ebfad13c, name_2c972f0b-79f3-4a76-9927-e04fbaf24402, name_ea978023-f4a0-44c8-aff3-b50e8b90a3d2 unsupported: false, false, false, false, false passed: false, false, false, false, false test failed: false, false, false, false, false |
write: (secret) => window.name = "name_" + secret read: () => window.name result, same first party: name_bcd34bcb-7c83-44a0-9eda-5688246ef304 result, different first party: unsupported: false passed: true test failed: false |
write: (secret) => window.name = "name_" + secret read: () => window.name result, same first party: name_96ac1e6a-6196-4192-8d14-4d4161017c0e, name_fcb80954-6b9f-4446-826b-50ee63df5a49, name_0c73a977-7e59-4e27-9886-fd27d9af7cb6, name_bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3 result, different first party: , , , unsupported: false, false, false, false passed: true, true, true, true test failed: false, false, false, false |
write: (secret) => window.name = "name_" + secret read: () => window.name result, same first party: name_90e9d075-a493-4589-90a5-cb9ed367a5ff, name_3d0759ec-76e7-420f-9fa5-8f9cd1ba98be, name_302c7c9a-be1d-4f73-9cc3-4a9fd90d065e, name_c6908ef1-96b7-4022-9fb1-6af958c08eab, name_9a187200-4907-4ac4-bb1a-a500a9dd6076 result, different first party: , , , , unsupported: false, false, false, false, false passed: true, true, true, true, true test failed: false, false, false, false, false |
write: (secret) => window.name = "name_" + secret read: () => window.name result, same first party: name_d8c3b983-124d-4e71-a763-0d6ed7a989d4, name_2e7e8190-3beb-4d79-b288-7d9f4b6521a4, name_2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a, name_dd5c9e21-e013-4d68-a26f-427893eb7663, name_edf66be4-a523-482a-b119-d15528cdff51 result, different first party: name_d8c3b983-124d-4e71-a763-0d6ed7a989d4, name_2e7e8190-3beb-4d79-b288-7d9f4b6521a4, name_2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a, name_dd5c9e21-e013-4d68-a26f-427893eb7663, name_edf66be4-a523-482a-b119-d15528cdff51 unsupported: false, false, false, false, false passed: false, false, false, false, false test failed: false, false, false, false, false |
write: (secret) => window.name = "name_" + secret read: () => window.name result, same first party: name_a94af09e-7597-4227-8646-e09e247d5c53, name_8124f977-0794-4d12-ac8c-63584f991299, name_52fb10c0-c3f0-4583-8aa1-bb667b988d77, name_28d41eef-e045-4404-b29a-660557b14eba, name_11098c2f-f6c6-4b5e-b3f6-32576f744002 result, different first party: , , , , unsupported: false, false, false, false, false passed: true, true, true, true, true test failed: false, false, false, false, false |
write: (secret) => window.name = "name_" + secret read: () => window.name result, same first party: name_f35ff98f-1c72-41f0-954f-7a7c66323baa, name_da711384-b29c-4af1-b951-26d3bbd655e2, name_f721fb55-8277-4850-85e8-f99056490543, name_576b6726-e0d6-4a4b-9fca-92205c480e69, name_d91aa27f-67c8-4e96-81cf-f8c0dbd65cab result, different first party: , , , , unsupported: false, false, false, false, false passed: true, true, true, true, true test failed: false, false, false, false, false |
write: (secret) => window.name = "name_" + secret read: () => window.name result, same first party: name_c59e38bc-da54-464d-9edc-7d3b1e8072c3, name_ea127664-f0c4-438a-9fd3-bfeaf6f60369, name_e40a919a-ea56-446f-99f8-acfe66cea299, name_5749a8b3-1ffe-4a84-b8d9-af924ca119b7, name_04750426-c791-47cf-8d99-bd4c035ffcd3 result, different first party: name_c59e38bc-da54-464d-9edc-7d3b1e8072c3, name_ea127664-f0c4-438a-9fd3-bfeaf6f60369, name_e40a919a-ea56-446f-99f8-acfe66cea299, name_5749a8b3-1ffe-4a84-b8d9-af924ca119b7, name_04750426-c791-47cf-8d99-bd4c035ffcd3 unsupported: false, false, false, false, false passed: false, false, false, false, false test failed: false, false, false, false, false |
write: (secret) => window.name = "name_" + secret read: () => window.name result, same first party: name_70ee341f-5d31-44c5-80a4-1f53046c2d28, name_e0b6fc3e-312b-4026-ac10-1dec39ecf35a, name_9753f0f1-c57e-47cb-86ca-5381bf5aa480, name_fca1c805-47eb-4126-a2f9-3e6264cfa3ed, name_187d7841-3d79-4d29-bb9e-3cf1e23ef8d8 result, different first party: name_70ee341f-5d31-44c5-80a4-1f53046c2d28, name_e0b6fc3e-312b-4026-ac10-1dec39ecf35a, name_9753f0f1-c57e-47cb-86ca-5381bf5aa480, name_fca1c805-47eb-4126-a2f9-3e6264cfa3ed, name_187d7841-3d79-4d29-bb9e-3cf1e23ef8d8 unsupported: false, false, false, false, false passed: false, false, false, false, false test failed: false, false, false, false, false |
|
HTTPS testsWhich browsers prevent unencrypted network connections?
HTTPS is the protocol that web browsers use to connect securely to websites. When HTTPS is being used, the connection is encrypted so that third parties on the network cannot read content being sent between the server and your browser. In the past, insecure connections were the default and websites would need to actively request that a browser use HTTPS. Now the status quo is shifting, and browser makers are moving toward a world where HTTPS is the default protocol.` |
|||||||||||
|
Insecure website warning
Checks to see if the browser stops loading an insecure website and warns the user before giving them the option to continue. Known as HTTPS-Only Mode in some browsers. |
passed: false, false, false, false, false result: Insecure website loaded, Insecure website loaded, Insecure website loaded, Insecure website loaded, Insecure website loaded |
passed: false, false, false, false, false result: Insecure website loaded, Insecure website loaded, Insecure website loaded, Insecure website loaded, Insecure website loaded |
passed: false, false, false, false, false result: Insecure website loaded, Insecure website loaded, Insecure website loaded, Insecure website loaded, Insecure website loaded |
passed: false result: Insecure website loaded |
passed: true, true, true, true result: Insecure website never loaded, Insecure website never loaded, Insecure website never loaded, Insecure website never loaded |
passed: true, true, true, true, true result: Insecure website never loaded, Insecure website never loaded, Insecure website never loaded, Insecure website never loaded, Insecure website never loaded |
passed: false, false, false, false, false result: Insecure website loaded, Insecure website loaded, Insecure website loaded, Insecure website loaded, Insecure website loaded |
passed: false, false, false, false, false result: Insecure website loaded, Insecure website loaded, Insecure website loaded, Insecure website loaded, Insecure website loaded |
passed: true, true, true, true, true result: Insecure website never loaded, Insecure website never loaded, Insecure website never loaded, Insecure website never loaded, Insecure website never loaded |
passed: false, false, false, false, false result: Insecure website loaded, Insecure website loaded, Insecure website loaded, Insecure website loaded, Insecure website loaded |
passed: false, false, false, false, false result: Insecure website loaded, Insecure website loaded, Insecure website loaded, Insecure website loaded, Insecure website loaded |
|
Upgradable address
Checks to see if an insecure address entered into the browser's address bar is upgraded to HTTPS whenever possible. |
upgraded: true, true, true, true, true passed: true, true, true, true, true |
upgraded: true, true, true, true, true passed: true, true, true, true, true |
upgraded: true, true, true, true, true passed: true, true, true, true, true |
upgraded: false passed: false |
upgraded: true, true, true, true passed: true, true, true, true |
upgraded: true, true, true, true, true passed: true, true, true, true, true |
upgraded: true, true, true, true, true passed: true, true, true, true, true |
upgraded: false, false, false, false, false passed: false, false, false, false, false |
upgraded: true, true, true, true, true passed: true, true, true, true, true |
upgraded: true, true, true, true, true passed: true, true, true, true, true |
upgraded: true, true, true, true, true passed: true, true, true, true, true |
|
Upgradable hyperlink
Checks to see if the user has clicked on a hyperlink to an insecure address, if the browser upgrades that address to HTTPS whenever possible. |
upgraded: true, true, true, true, true passed: true, true, true, true, true |
upgraded: true, true, true, true, true passed: true, true, true, true, true |
upgraded: true, true, true, true, true passed: true, true, true, true, true |
upgraded: false passed: false |
upgraded: true, true, true, true passed: true, true, true, true |
upgraded: true, true, true, true, true passed: true, true, true, true, true |
upgraded: true, true, true, true, true passed: true, true, true, true, true |
upgraded: false, false, false, false, false passed: false, false, false, false, false |
upgraded: true, true, true, true, true passed: true, true, true, true, true |
upgraded: true, true, true, true, true passed: true, true, true, true, true |
upgraded: true, true, true, true, true passed: true, true, true, true, true |
|
Upgradable image
Checks to see if the browser attempts to upgrade an insecure address for an image to HTTPS whenever possible. |
passed: true, true, true, true, true result: upgraded, upgraded, upgraded, upgraded, upgraded |
passed: true, true, true, true, true result: upgraded, upgraded, upgraded, upgraded, upgraded |
passed: true, true, true, true, true result: upgraded, upgraded, upgraded, upgraded, upgraded |
passed: true result: upgraded |
passed: true, true, true, true result: upgraded, upgraded, upgraded, upgraded |
passed: true, true, true, true, true result: upgraded, upgraded, upgraded, upgraded, upgraded |
passed: true, true, true, true, true result: upgraded, upgraded, upgraded, upgraded, upgraded |
passed: false, false, false, false, false result: loaded insecurely, loaded insecurely, loaded insecurely, loaded insecurely, loaded insecurely |
passed: true, true, true, true, true result: upgraded, upgraded, upgraded, upgraded, upgraded |
passed: true, true, true, true, true result: upgraded, upgraded, upgraded, upgraded, upgraded |
passed: true, true, true, true, true result: upgraded, upgraded, upgraded, upgraded, upgraded |
|
Upgradable script
Checks to see if the browser attempts to upgrade an insecure address for an script to HTTPS whenever possible. |
passed: true, true, true, true, true result: blocked, blocked, blocked, blocked, blocked |
passed: true, true, true, true, true result: blocked, blocked, blocked, blocked, blocked |
passed: true, true, true, true, true result: blocked, blocked, blocked, blocked, blocked |
passed: true result: blocked |
passed: true, true, true, true result: upgraded, upgraded, upgraded, upgraded |
passed: true, true, true, true, true result: upgraded, upgraded, upgraded, upgraded, upgraded |
passed: true, true, true, true, true result: blocked, blocked, blocked, blocked, blocked |
passed: true, true, true, true, true result: blocked, blocked, blocked, blocked, blocked |
passed: true, true, true, true, true result: upgraded, upgraded, upgraded, upgraded, upgraded |
passed: true, true, true, true, true result: blocked, blocked, blocked, blocked, blocked |
passed: true, true, true, true, true result: blocked, blocked, blocked, blocked, blocked |
|
Misc testsWhich browsers provide additional assorted privacy protections?
This category includes tests for the presence of miscellaneous privacy features |
|||||||||||
|
ECH enabled
Encrypted Client Hello (ECH) is a new protocol that hides the website you are visiting from third-party network eavesdroppers. |
SNI_status: encrypted passed: true, true, true, true, true |
SNI_status: encrypted passed: true, true, true, true, true |
SNI_status: encrypted passed: true, true, true, true, true |
SNI_status: plaintext passed: false |
SNI_status: plaintext passed: false, false, false, false |
SNI_status: plaintext passed: false, false, false, false, false |
SNI_status: encrypted passed: true, true, true, true, true |
SNI_status: plaintext passed: false, false, false, false, false |
SNI_status: plaintext passed: false, false, false, false, false |
SNI_status: encrypted passed: true, true, true, true, true |
SNI_status: encrypted passed: true, true, true, true, true |
|
GPC enabled first-party
The Global Privacy Control is an HTTP header that can be sent by a browser to instruct a website not to sell the user's personal data to third parties. This test checks to see if the GPC header is sent by default to the top-level website. |
header value: 1 passed: true, true, true, true, true |
header value: undefined passed: false, false, false, false, false |
header value: undefined passed: false, false, false, false, false |
header value: undefined passed: false |
header value: undefined passed: false, false, false, false |
header value: undefined passed: false, false, false, false, false |
header value: undefined passed: false, false, false, false, false |
header value: undefined passed: false, false, false, false, false |
header value: undefined passed: false, false, false, false, false |
header value: undefined passed: false, false, false, false, false |
header value: undefined passed: false, false, false, false, false |
|
GPC enabled third-party
The Global Privacy Control is an HTTP header that can be sent by a browser to instruct a visited website not to sell the user's personal data to other parties. This test checks to see if the GPC header is sent to third-party elements on the web page. |
sec-gpc: 1 passed: true, true, true, true, true |
passed: false, false, false, false, false |
passed: false, false, false, false, false |
passed: false |
passed: false, false, false, false |
passed: false, false, false, false, false |
passed: false, false, false, false, false |
passed: false, false, false, false, false |
passed: false, false, false, false, false |
passed: false, false, false, false, false |
passed: false, false, false, false, false |
|
IP address leak
IP addresses can be used to uniquely identify a large percentage of users. A proxy, VPN, or Tor can mask a user's IP address. |
passed: false, false, false, false, false |
passed: false, false, false, false, false |
passed: false, false, false, false, false |
passed: false |
passed: false, false, false, false |
passed: false, false, false, false, false |
passed: false, false, false, false, false |
passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: false, false, false, false, false |
passed: false, false, false, false, false |
|
Stream isolation
Browsers that use Tor can use a different Tor circuit per top-level website. |
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true, true, true, true, true
readSameFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
readDifferentFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
testFailed: false, false, false, false, false
|
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true, true, true, true, true
readSameFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
readDifferentFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
testFailed: false, false, false, false, false
|
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true, true, true, true, true
readSameFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
readDifferentFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
testFailed: false, false, false, false, false
|
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true
readSameFirstParty: Error: Unsupported
readDifferentFirstParty: Error: Unsupported
testFailed: false
|
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true, true, true, true
readSameFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
readDifferentFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
testFailed: false, false, false, false
|
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true, true, true, true, true
readSameFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
readDifferentFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
testFailed: false, false, false, false, false
|
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true, true, true, true, true
readSameFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
readDifferentFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
testFailed: false, false, false, false, false
|
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true, true, true, true, true
readSameFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
readDifferentFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
testFailed: false, false, false, false, false
|
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: false, false, false, false, false
readSameFirstParty:
45.80.158.27,
179.43.159.197,
2a0b:f4c2::10,
2a0b:f4c2:4::101,
2a0b:f4c2::7
readDifferentFirstParty:
2a03:e600:100::68,
45.141.215.81,
2a03:94e0:243a:dead::1,
2a03:4000:19:40:4804:2fff:fe4c:9cc1,
2001:67c:289c:2::235
passed: true, true, true, true, true
testFailed: false, false, false, false, false
|
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true, true, true, true, true
readSameFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
readDifferentFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
testFailed: false, false, false, false, false
|
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true, true, true, true, true
readSameFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
readDifferentFirstParty:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
testFailed: false, false, false, false, false
|
|
Tor enabled
The Tor network sends the browser's web requests through a series of relays to hide a user's IP address, thereby helping to mask their identity and location. This test checks to see if the Tor network is being used by default. |
IsTorExit: false, false, false, false, false passed: false, false, false, false, false |
IsTorExit: false, false, false, false, false passed: false, false, false, false, false |
IsTorExit: false, false, false, false, false passed: false, false, false, false, false |
IsTorExit: false passed: false |
IsTorExit: false, false, false, false passed: false, false, false, false |
IsTorExit: false, false, false, false, false passed: false, false, false, false, false |
IsTorExit: false, false, false, false, false passed: false, false, false, false, false |
IsTorExit: false, false, false, false, false passed: false, false, false, false, false |
IsTorExit: true, true, true, true, true passed: true, true, true, true, true |
IsTorExit: false, false, false, false, false passed: false, false, false, false, false |
IsTorExit: false, false, false, false, false passed: false, false, false, false, false |
|
Fingerprinting resistance testsWhich browsers hide what's unique about your device?
Fingerprinting is a technique trackers use to uniquely identify you as you browse the web. A fingerprinting script will measure several characteristics of your browser and, combining this data, will build a fingerprint that may uniquely identify you among web users. Browsers can introduce countermeasures, such as minimizing the distinguishing information disclosed by certain web APIs so your browser is harder to pick out from the crowd (so-called 'fingerprinting resistance').`, |
|||||||||||
|
Media query screen height
Height of the user's screen in pixels. |
expression: undefined desired expression: undefined actual value: 1296,1290,1296,1293,1295 desired value: undefined passed: true,true,true,true,true |
expression: undefined desired expression: undefined actual value: 1440,1440,1440,1440,1440 desired value: undefined passed: false,false,false,false,false |
expression: undefined desired expression: undefined actual value: 1440,1440,1440,1440,1440 desired value: undefined passed: false,false,false,false,false |
expression: undefined desired expression: undefined actual value: 1440 desired value: undefined passed: false |
expression: undefined desired expression: undefined actual value: 900,900,900,900 desired value: undefined passed: true,true,true,true |
expression: undefined desired expression: undefined actual value: 900,900,900,900,900 desired value: undefined passed: true,true,true,true,true |
expression: undefined desired expression: undefined actual value: 1440,1440,1440,1440,1440 desired value: undefined passed: false,false,false,false,false |
expression: undefined desired expression: undefined actual value: 1440,1440,1440,1440,1440 desired value: undefined passed: false,false,false,false,false |
expression: undefined desired expression: undefined actual value: 900,900,900,900,900 desired value: undefined passed: true,true,true,true,true |
expression: undefined desired expression: undefined actual value: 1440,1440,1440,1440,1440 desired value: undefined passed: false,false,false,false,false |
expression: undefined desired expression: undefined actual value: 1440,1440,1440,1440,1440 desired value: undefined passed: false,false,false,false,false |
|
Media query screen width
Width of the user's screen in pixels. |
expression: undefined desired expression: undefined actual value: 1202,1206,1205,1208,1207 desired value: undefined passed: true,true,true,true,true |
expression: undefined desired expression: undefined actual value: 2560,2560,2560,2560,2560 desired value: undefined passed: false,false,false,false,false |
expression: undefined desired expression: undefined actual value: 2560,2560,2560,2560,2560 desired value: undefined passed: false,false,false,false,false |
expression: undefined desired expression: undefined actual value: 2560 desired value: undefined passed: false |
expression: undefined desired expression: undefined actual value: 1600,1600,1600,1600 desired value: undefined passed: true,true,true,true |
expression: undefined desired expression: undefined actual value: 1400,1400,1400,1400,1400 desired value: undefined passed: true,true,true,true,true |
expression: undefined desired expression: undefined actual value: 2560,2560,2560,2560,2560 desired value: undefined passed: false,false,false,false,false |
expression: undefined desired expression: undefined actual value: 2560,2560,2560,2560,2560 desired value: undefined passed: false,false,false,false,false |
expression: undefined desired expression: undefined actual value: 1400,1400,1400,1400,1400 desired value: undefined passed: true,true,true,true,true |
expression: undefined desired expression: undefined actual value: 2560,2560,2560,2560,2560 desired value: undefined passed: false,false,false,false,false |
expression: undefined desired expression: undefined actual value: 2560,2560,2560,2560,2560 desired value: undefined passed: false,false,false,false,false |
|
outerHeight
Height of the browser window in pixels, including browser chrome. |
expression: outerHeight desired expression: undefined actual value: 1296,1290,1296,1293,1295 desired value: undefined passed: true,true,true,true,true |
expression: outerHeight desired expression: undefined actual value: 1371,1371,1371,1371,1371 desired value: undefined passed: false,false,false,false,false |
expression: outerHeight desired expression: undefined actual value: 1371,1371,1371,1371,1371 desired value: undefined passed: false,false,false,false,false |
expression: outerHeight desired expression: undefined actual value: 1040 desired value: undefined passed: false |
expression: outerHeight desired expression: undefined actual value: 900,900,900,900 desired value: undefined passed: true,true,true,true |
expression: outerHeight desired expression: undefined actual value: 900,900,900,900,900 desired value: undefined passed: true,true,true,true,true |
expression: outerHeight desired expression: undefined actual value: 1061,1061,1061,1061,1061 desired value: undefined passed: false,false,false,false,false |
expression: outerHeight desired expression: undefined actual value: 1335,1335,1335,1335,1335 desired value: undefined passed: false,false,false,false,false |
expression: outerHeight desired expression: undefined actual value: 900,900,900,900,900 desired value: undefined passed: true,true,true,true,true |
expression: outerHeight desired expression: undefined actual value: 1371,1371,1371,1371,1371 desired value: undefined passed: false,false,false,false,false |
expression: outerHeight desired expression: undefined actual value: 1371,1371,1371,1371,1371 desired value: undefined passed: false,false,false,false,false |
|
screen.height
Height of the user's screen, in pixels. |
expression: screen.height desired expression: undefined actual value: 1296,1290,1296,1293,1295 desired value: undefined passed: true,true,true,true,true |
expression: screen.height desired expression: undefined actual value: 1440,1440,1440,1440,1440 desired value: undefined passed: false,false,false,false,false |
expression: screen.height desired expression: undefined actual value: 1440,1440,1440,1440,1440 desired value: undefined passed: false,false,false,false,false |
expression: screen.height desired expression: undefined actual value: 1440 desired value: undefined passed: false |
expression: screen.height desired expression: undefined actual value: 900,900,900,900 desired value: undefined passed: true,true,true,true |
expression: screen.height desired expression: undefined actual value: 900,900,900,900,900 desired value: undefined passed: true,true,true,true,true |
expression: screen.height desired expression: undefined actual value: 1440,1440,1440,1440,1440 desired value: undefined passed: false,false,false,false,false |
expression: screen.height desired expression: undefined actual value: 1440,1440,1440,1440,1440 desired value: undefined passed: false,false,false,false,false |
expression: screen.height desired expression: undefined actual value: 900,900,900,900,900 desired value: undefined passed: true,true,true,true,true |
expression: screen.height desired expression: undefined actual value: 1440,1440,1440,1440,1440 desired value: undefined passed: false,false,false,false,false |
expression: screen.height desired expression: undefined actual value: 1440,1440,1440,1440,1440 desired value: undefined passed: false,false,false,false,false |
|
screen.width
Width of the user's screen, in pixels. |
expression: screen.width desired expression: undefined actual value: 1202,1206,1205,1208,1207 desired value: undefined passed: true,true,true,true,true |
expression: screen.width desired expression: undefined actual value: 2560,2560,2560,2560,2560 desired value: undefined passed: false,false,false,false,false |
expression: screen.width desired expression: undefined actual value: 2560,2560,2560,2560,2560 desired value: undefined passed: false,false,false,false,false |
expression: screen.width desired expression: undefined actual value: 2560 desired value: undefined passed: false |
expression: screen.width desired expression: undefined actual value: 1600,1600,1600,1600 desired value: undefined passed: true,true,true,true |
expression: screen.width desired expression: undefined actual value: 1400,1400,1400,1400,1400 desired value: undefined passed: true,true,true,true,true |
expression: screen.width desired expression: undefined actual value: 2560,2560,2560,2560,2560 desired value: undefined passed: false,false,false,false,false |
expression: screen.width desired expression: undefined actual value: 2560,2560,2560,2560,2560 desired value: undefined passed: false,false,false,false,false |
expression: screen.width desired expression: undefined actual value: 1400,1400,1400,1400,1400 desired value: undefined passed: true,true,true,true,true |
expression: screen.width desired expression: undefined actual value: 2560,2560,2560,2560,2560 desired value: undefined passed: false,false,false,false,false |
expression: screen.width desired expression: undefined actual value: 2560,2560,2560,2560,2560 desired value: undefined passed: false,false,false,false,false |
|
screenX
Position, in pixels, of the left edge of the browser window on screen. |
expression: screenX desired expression: undefined actual value: 3,8,2,5,4 desired value: undefined passed: true,true,true,true,true |
expression: screenX desired expression: undefined actual value: 22,22,22,22,22 desired value: undefined passed: false,false,false,false,false |
expression: screenX desired expression: undefined actual value: 22,22,22,22,22 desired value: undefined passed: false,false,false,false,false |
expression: screenX desired expression: undefined actual value: 4 desired value: undefined passed: true |
expression: screenX desired expression: undefined actual value: 0,0,0,0 desired value: undefined passed: true,true,true,true |
expression: screenX desired expression: undefined actual value: 0,0,0,0,0 desired value: undefined passed: true,true,true,true,true |
expression: screenX desired expression: undefined actual value: 320,320,320,320,320 desired value: undefined passed: false,false,false,false,false |
expression: screenX desired expression: undefined actual value: 939,939,939,939,939 desired value: undefined passed: false,false,false,false,false |
expression: screenX desired expression: undefined actual value: 0,0,0,0,0 desired value: undefined passed: true,true,true,true,true |
expression: screenX desired expression: undefined actual value: 22,22,22,22,22 desired value: undefined passed: false,false,false,false,false |
expression: screenX desired expression: undefined actual value: 22,22,22,22,22 desired value: undefined passed: false,false,false,false,false |
|
screenY
Position, in pixels, of the top edge of the browser window on screen. |
expression: screenY desired expression: undefined actual value: 1,1,1,6,0 desired value: undefined passed: true,true,true,true,true |
expression: screenY desired expression: undefined actual value: 47,47,47,47,47 desired value: undefined passed: false,false,false,false,false |
expression: screenY desired expression: undefined actual value: 47,47,47,47,47 desired value: undefined passed: false,false,false,false,false |
expression: screenY desired expression: undefined actual value: 25 desired value: undefined passed: false |
expression: screenY desired expression: undefined actual value: 0,0,0,0 desired value: undefined passed: true,true,true,true |
expression: screenY desired expression: undefined actual value: 0,0,0,0,0 desired value: undefined passed: true,true,true,true,true |
expression: screenY desired expression: undefined actual value: 202,202,202,202,202 desired value: undefined passed: false,false,false,false,false |
expression: screenY desired expression: undefined actual value: 85,85,85,85,85 desired value: undefined passed: false,false,false,false,false |
expression: screenY desired expression: undefined actual value: 0,0,0,0,0 desired value: undefined passed: true,true,true,true,true |
expression: screenY desired expression: undefined actual value: 47,47,47,47,47 desired value: undefined passed: false,false,false,false,false |
expression: screenY desired expression: undefined actual value: 47,47,47,47,47 desired value: undefined passed: false,false,false,false,false |
|
System font detection
Web pages can detect the presence of a font installed on the user's system. The presence or absence of various fonts is commonly used to fingerprint users. |
expression: undefined desired expression: undefined actual value: undefined desired value: undefined passed: true,true,true,true,true |
expression: undefined desired expression: undefined actual value: undefined desired value: undefined passed: false,false,false,false,false |
expression: undefined desired expression: undefined actual value: undefined desired value: undefined passed: false,false,false,false,false |
expression: undefined desired expression: undefined actual value: undefined desired value: undefined passed: false |
expression: undefined desired expression: undefined actual value: undefined desired value: undefined passed: true,true,true,true |
expression: undefined desired expression: undefined actual value: undefined desired value: undefined passed: true,true,true,true,true |
expression: undefined desired expression: undefined actual value: undefined desired value: undefined passed: false,false,false,false,false |
expression: undefined desired expression: undefined actual value: undefined desired value: undefined passed: true,true,true,true,true |
expression: undefined desired expression: undefined actual value: undefined desired value: undefined passed: true,true,true,true,true |
expression: undefined desired expression: undefined actual value: undefined desired value: undefined passed: false,false,false,false,false |
expression: undefined desired expression: undefined actual value: undefined desired value: undefined passed: false,false,false,false,false |
|
Tracking query parameter testsWhich browsers remove URL parameters that can track you?
When you browse from one web page to another, tracking companies will frequently attach a 'tracking query parameter' to the address of the second web page. That query parameter may contain a unique identifier that tracks you individually as you browse the web. And these query parameters are frequently synchronized with cookies, making them a powerful tracking vector. Web browsers can protect you from known tracking query parameters by stripping them from web addresses before your browser sends them. (The set of tracking query parameters tested here was largely borrowed from Brave.)` |
|||||||||||
|
__hsfp
HubSpot tracking parameter |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
__hssc
HubSpot tracking parameter |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
__hstc
HubSpot tracking parameter |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
__s
Drip.com email address tracking parameter |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
_hsenc
HubSpot tracking parameter |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
_openstat
Yandex tracking parameter |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
dclid
DoubleClick Click ID (Google) |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
fbclid
Facebook Click Identifier |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
gclid
Google Click Identifier |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
hsCtaTracking
HubSpot tracking parameter |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
mc_eid
Mailchimp Email ID (email recipient's address) |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
mkt_tok
Adobe Marketo tracking parameter |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
ml_subscriber
MailerLite email tracking |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
ml_subscriber_hash
MailerLite email tracking |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
msclkid
Microsoft Click ID |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
oly_anon_id
Omeda marketing 'anonymous' customer id |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
oly_enc_id
Omeda marketing 'known' customer id |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
rb_clickid
Unknown high-entropy tracking parameter |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
s_cid
Adobe Site Catalyst tracking parameter |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
vero_conv
Vero tracking parameter |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
vero_id
Vero tracking parameter |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
wickedid
Wicked Reports e-commerce tracking |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
yclid
Yandex Click ID |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false |
passed: true, true, true, true |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
passed: true, true, true, true, true |
value: 3856570972781308 passed: false, false, false, false, false |
value: 3856570972781308 passed: false, false, false, false, false |
|
Tracker content blocking testsWhich browsers block important known tracking scripts and pixels?
When you visit a web page, it frequently has third-party embedded tracking content, such as scripts and tracking pixels. These embedded components spy on you. Some browsers and browser extensions maintain list of tracking companies and block their content from being loaded. This section checks to see if a browser blocks 20 of the largest trackers listed by https://whotracks.me.` |
|||||||||||
|
Adobe
Tests whether the browser blocks the page from loading the tracker at https://munchkin.marketo.net/munchkin.js |
url: https://munchkin.marketo.net/munchkin.js passed: true, true, true, true, true |
url: https://munchkin.marketo.net/munchkin.js passed: false, false, false, false, false |
url: https://munchkin.marketo.net/munchkin.js passed: false, false, false, false, false |
url: https://munchkin.marketo.net/munchkin.js passed: false |
url: https://munchkin.marketo.net/munchkin.js passed: true, true, true, true |
url: https://munchkin.marketo.net/munchkin.js passed: true, true, true, true, true |
url: https://munchkin.marketo.net/munchkin.js passed: false, false, false, false, false |
url: https://munchkin.marketo.net/munchkin.js passed: false, false, false, false, false |
url: https://munchkin.marketo.net/munchkin.js passed: false, false, false, false, false |
url: https://munchkin.marketo.net/munchkin.js passed: false, false, false, false, false |
url: https://munchkin.marketo.net/munchkin.js passed: false, false, false, false, false |
|
Adobe Audience Manager
Tests whether the browser blocks the page from loading the tracker at https://dpm.demdex.net/ibs |
url: https://dpm.demdex.net/ibs passed: true, true, true, true, true |
url: https://dpm.demdex.net/ibs passed: false, false, false, false, false |
url: https://dpm.demdex.net/ibs passed: false, false, false, false, false |
url: https://dpm.demdex.net/ibs passed: false |
url: https://dpm.demdex.net/ibs passed: true, true, true, true |
url: https://dpm.demdex.net/ibs passed: true, true, true, true, true |
url: https://dpm.demdex.net/ibs passed: false, false, false, false, false |
url: https://dpm.demdex.net/ibs passed: false, false, false, false, false |
url: https://dpm.demdex.net/ibs passed: false, false, false, false, false |
url: https://dpm.demdex.net/ibs passed: false, false, false, false, false |
url: https://dpm.demdex.net/ibs passed: false, false, false, false, false |
|
Amazon adsystem
Tests whether the browser blocks the page from loading the tracker at https://s.amazon-adsystem.com/dcm |
url: https://s.amazon-adsystem.com/dcm passed: true, true, true, true, true |
url: https://s.amazon-adsystem.com/dcm passed: false, false, false, false, false |
url: https://s.amazon-adsystem.com/dcm passed: false, false, false, false, false |
url: https://s.amazon-adsystem.com/dcm passed: false |
url: https://s.amazon-adsystem.com/dcm passed: true, true, true, true |
url: https://s.amazon-adsystem.com/dcm passed: true, true, true, true, true |
url: https://s.amazon-adsystem.com/dcm passed: false, false, false, false, false |
url: https://s.amazon-adsystem.com/dcm passed: false, false, false, false, false |
url: https://s.amazon-adsystem.com/dcm passed: false, false, false, false, false |
url: https://s.amazon-adsystem.com/dcm passed: false, false, false, false, false |
url: https://s.amazon-adsystem.com/dcm passed: false, false, false, false, false |
|
AppNexus
Tests whether the browser blocks the page from loading the tracker at https://ib.adnxs.com/px?id=178248&t=1 |
url: https://ib.adnxs.com/px?id=178248&t=1 passed: true, true, true, true, true |
url: https://ib.adnxs.com/px?id=178248&t=1 passed: false, false, false, false, false |
url: https://ib.adnxs.com/px?id=178248&t=1 passed: false, false, false, false, false |
url: https://ib.adnxs.com/px?id=178248&t=1 passed: false |
url: https://ib.adnxs.com/px?id=178248&t=1 passed: true, true, true, true |
url: https://ib.adnxs.com/px?id=178248&t=1 passed: true, true, true, true, true |
url: https://ib.adnxs.com/px?id=178248&t=1 passed: false, false, false, false, false |
url: https://ib.adnxs.com/px?id=178248&t=1 passed: false, false, false, false, false |
url: https://ib.adnxs.com/px?id=178248&t=1 passed: false, false, false, false, false |
url: https://ib.adnxs.com/px?id=178248&t=1 passed: false, false, false, false, false |
url: https://ib.adnxs.com/px?id=178248&t=1 passed: false, false, false, false, false |
|
Bing Ads
Tests whether the browser blocks the page from loading the tracker at https://bat.bing.com/bat.js |
url: https://bat.bing.com/bat.js passed: true, true, true, true, true |
url: https://bat.bing.com/bat.js passed: false, false, false, false, false |
url: https://bat.bing.com/bat.js passed: false, false, false, false, false |
url: https://bat.bing.com/bat.js passed: false |
url: https://bat.bing.com/bat.js passed: true, true, true, true |
url: https://bat.bing.com/bat.js passed: true, true, true, true, true |
url: https://bat.bing.com/bat.js passed: false, false, false, false, false |
url: https://bat.bing.com/bat.js passed: false, false, false, false, false |
url: https://bat.bing.com/bat.js passed: false, false, false, false, false |
url: https://bat.bing.com/bat.js passed: false, false, false, false, false |
url: https://bat.bing.com/bat.js passed: false, false, false, false, false |
|
Chartbeat
Tests whether the browser blocks the page from loading the tracker at https://static.chartbeat.com/js/chartbeat.js |
url: https://static.chartbeat.com/js/chartbeat.js passed: true, true, true, true, true |
url: https://static.chartbeat.com/js/chartbeat.js passed: false, false, false, false, false |
url: https://static.chartbeat.com/js/chartbeat.js passed: false, false, false, false, false |
url: https://static.chartbeat.com/js/chartbeat.js passed: false |
url: https://static.chartbeat.com/js/chartbeat.js passed: true, true, true, true |
url: https://static.chartbeat.com/js/chartbeat.js passed: true, true, true, true, true |
url: https://static.chartbeat.com/js/chartbeat.js passed: false, false, false, false, false |
url: https://static.chartbeat.com/js/chartbeat.js passed: false, false, false, false, false |
url: https://static.chartbeat.com/js/chartbeat.js passed: false, false, false, false, false |
url: https://static.chartbeat.com/js/chartbeat.js passed: false, false, false, false, false |
url: https://static.chartbeat.com/js/chartbeat.js passed: false, false, false, false, false |
|
Criteo
Tests whether the browser blocks the page from loading the tracker at https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx |
url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx passed: true, true, true, true, true |
url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx passed: false, false, false, false, false |
url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx passed: false, false, false, false, false |
url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx passed: false |
url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx passed: true, true, true, true |
url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx passed: true, true, true, true, true |
url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx passed: false, false, false, false, false |
url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx passed: false, false, false, false, false |
url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx passed: false, false, false, false, false |
url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx passed: false, false, false, false, false |
url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx passed: false, false, false, false, false |
|
DoubleClick (Google)
Tests whether the browser blocks the page from loading the tracker at https://securepubads.g.doubleclick.net/static/glade.js |
url: https://securepubads.g.doubleclick.net/static/glade.js passed: true, true, true, true, true |
url: https://securepubads.g.doubleclick.net/static/glade.js passed: false, false, false, false, false |
url: https://securepubads.g.doubleclick.net/static/glade.js passed: false, false, false, false, false |
url: https://securepubads.g.doubleclick.net/static/glade.js passed: false |
url: https://securepubads.g.doubleclick.net/static/glade.js passed: true, true, true, true |
url: https://securepubads.g.doubleclick.net/static/glade.js passed: true, true, true, true, true |
url: https://securepubads.g.doubleclick.net/static/glade.js passed: false, false, false, false, false |
url: https://securepubads.g.doubleclick.net/static/glade.js passed: false, false, false, false, false |
url: https://securepubads.g.doubleclick.net/static/glade.js passed: false, false, false, false, false |
url: https://securepubads.g.doubleclick.net/static/glade.js passed: false, false, false, false, false |
url: https://securepubads.g.doubleclick.net/static/glade.js passed: false, false, false, false, false |
|
Facebook tracking
Tests whether the browser blocks the page from loading the tracker at https://connect.facebook.net/en_US/fbevents.js |
url: https://connect.facebook.net/en_US/fbevents.js passed: true, true, true, true, true |
url: https://connect.facebook.net/en_US/fbevents.js passed: false, false, false, false, false |
url: https://connect.facebook.net/en_US/fbevents.js passed: false, false, false, false, false |
url: https://connect.facebook.net/en_US/fbevents.js passed: false |
url: https://connect.facebook.net/en_US/fbevents.js passed: true, true, true, true |
url: https://connect.facebook.net/en_US/fbevents.js passed: true, true, true, true, true |
url: https://connect.facebook.net/en_US/fbevents.js passed: false, false, false, false, false |
url: https://connect.facebook.net/en_US/fbevents.js passed: false, false, false, false, false |
url: https://connect.facebook.net/en_US/fbevents.js passed: false, false, false, false, false |
url: https://connect.facebook.net/en_US/fbevents.js passed: false, false, false, false, false |
url: https://connect.facebook.net/en_US/fbevents.js passed: false, false, false, false, false |
|
Google (third-party ad pixel)
Tests whether the browser blocks the page from loading the tracker at https://www.google.com/pagead/1p-user-list/ |
url: https://www.google.com/pagead/1p-user-list/ passed: true, true, true, true, true |
url: https://www.google.com/pagead/1p-user-list/ passed: false, false, false, false, false |
url: https://www.google.com/pagead/1p-user-list/ passed: false, false, false, false, false |
url: https://www.google.com/pagead/1p-user-list/ passed: false |
url: https://www.google.com/pagead/1p-user-list/ passed: true, true, true, true |
url: https://www.google.com/pagead/1p-user-list/ passed: true, true, true, true, true |
url: https://www.google.com/pagead/1p-user-list/ passed: false, false, false, false, false |
url: https://www.google.com/pagead/1p-user-list/ passed: false, false, false, false, false |
url: https://www.google.com/pagead/1p-user-list/ passed: false, false, false, false, false |
url: https://www.google.com/pagead/1p-user-list/ passed: false, false, false, false, false |
url: https://www.google.com/pagead/1p-user-list/ passed: false, false, false, false, false |
|
Google Analytics
Tests whether the browser blocks the page from loading the tracker at https://google-analytics.com/urchin.js |
url: https://google-analytics.com/urchin.js passed: true, true, true, true, true |
url: https://google-analytics.com/urchin.js passed: false, false, false, false, false |
url: https://google-analytics.com/urchin.js passed: false, false, false, false, false |
url: https://google-analytics.com/urchin.js passed: false |
url: https://google-analytics.com/urchin.js passed: true, true, true, true |
url: https://google-analytics.com/urchin.js passed: true, true, true, true, true |
url: https://google-analytics.com/urchin.js passed: false, false, false, false, false |
url: https://google-analytics.com/urchin.js passed: false, false, false, false, false |
url: https://google-analytics.com/urchin.js passed: false, false, false, false, false |
url: https://google-analytics.com/urchin.js passed: false, false, false, false, false |
url: https://google-analytics.com/urchin.js passed: false, false, false, false, false |
|
Google Tag Manager
Tests whether the browser blocks the page from loading the tracker at https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL |
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL passed: true, true, true, true, true |
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL passed: false, false, false, false, false |
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL passed: false, false, false, false, false |
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL passed: false |
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL passed: true, true, true, true |
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL passed: true, true, true, true, true |
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL passed: false, false, false, false, false |
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL passed: false, false, false, false, false |
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL passed: false, false, false, false, false |
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL passed: false, false, false, false, false |
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL passed: false, false, false, false, false |
|
Index Exchange
Tests whether the browser blocks the page from loading the tracker at https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 |
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 passed: true, true, true, true, true |
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 passed: false, false, false, false, false |
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 passed: false, false, false, false, false |
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 passed: false |
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 passed: true, true, true, true |
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 passed: true, true, true, true, true |
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 passed: false, false, false, false, false |
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 passed: false, false, false, false, false |
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 passed: false, false, false, false, false |
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 passed: false, false, false, false, false |
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 passed: false, false, false, false, false |
|
New Relic
Tests whether the browser blocks the page from loading the tracker at https://js-agent.newrelic.com/nr-1212.min.js |
url: https://js-agent.newrelic.com/nr-1212.min.js passed: true, true, true, true, true |
url: https://js-agent.newrelic.com/nr-1212.min.js passed: false, false, false, false, false |
url: https://js-agent.newrelic.com/nr-1212.min.js passed: false, false, false, false, false |
url: https://js-agent.newrelic.com/nr-1212.min.js passed: false |
url: https://js-agent.newrelic.com/nr-1212.min.js passed: true, true, true, true |
url: https://js-agent.newrelic.com/nr-1212.min.js passed: true, true, true, true, true |
url: https://js-agent.newrelic.com/nr-1212.min.js passed: false, false, false, false, false |
url: https://js-agent.newrelic.com/nr-1212.min.js passed: false, false, false, false, false |
url: https://js-agent.newrelic.com/nr-1212.min.js passed: false, false, false, false, false |
url: https://js-agent.newrelic.com/nr-1212.min.js passed: false, false, false, false, false |
url: https://js-agent.newrelic.com/nr-1212.min.js passed: false, false, false, false, false |
|
Quantcast
Tests whether the browser blocks the page from loading the tracker at https://pixel.quantserve.com/pixel |
url: https://pixel.quantserve.com/pixel passed: true, true, true, true, true |
url: https://pixel.quantserve.com/pixel passed: false, false, false, false, false |
url: https://pixel.quantserve.com/pixel passed: false, false, false, false, false |
url: https://pixel.quantserve.com/pixel passed: false |
url: https://pixel.quantserve.com/pixel passed: true, true, true, true |
url: https://pixel.quantserve.com/pixel passed: true, true, true, true, true |
url: https://pixel.quantserve.com/pixel passed: false, false, false, false, false |
url: https://pixel.quantserve.com/pixel passed: false, false, false, false, false |
url: https://pixel.quantserve.com/pixel passed: false, false, false, false, false |
url: https://pixel.quantserve.com/pixel passed: false, false, false, false, false |
url: https://pixel.quantserve.com/pixel passed: false, false, false, false, false |
|
Scorecard Research Beacon
Tests whether the browser blocks the page from loading the tracker at https://sb.scorecardresearch.com/internal-c2/default/cs.js |
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js passed: true, true, true, true, true |
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js passed: false, false, false, false, false |
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js passed: false, false, false, false, false |
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js passed: false |
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js passed: true, true, true, true |
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js passed: true, true, true, true, true |
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js passed: false, false, false, false, false |
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js passed: false, false, false, false, false |
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js passed: false, false, false, false, false |
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js passed: false, false, false, false, false |
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js passed: false, false, false, false, false |
|
Taboola
Tests whether the browser blocks the page from loading the tracker at https://trc.taboola.com/futureplc-tomsguide/trc/3/json |
url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json passed: true, true, true, true, true |
url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json passed: false, false, false, false, false |
url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json passed: false, false, false, false, false |
url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json passed: false |
url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json passed: true, true, true, true |
url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json passed: true, true, true, true, true |
url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json passed: false, false, false, false, false |
url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json passed: false, false, false, false, false |
url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json passed: false, false, false, false, false |
url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json passed: false, false, false, false, false |
url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json passed: false, false, false, false, false |
|
Twitter pixel
Tests whether the browser blocks the page from loading the tracker at https://t.co/i/adsct |
url: https://t.co/i/adsct passed: true, true, true, true, true |
url: https://t.co/i/adsct passed: false, false, false, false, false |
url: https://t.co/i/adsct passed: false, false, false, false, false |
url: https://t.co/i/adsct passed: false |
url: https://t.co/i/adsct passed: true, true, true, true |
url: https://t.co/i/adsct passed: true, true, true, true, true |
url: https://t.co/i/adsct passed: false, false, false, false, false |
url: https://t.co/i/adsct passed: false, false, false, false, false |
url: https://t.co/i/adsct passed: false, false, false, false, false |
url: https://t.co/i/adsct passed: false, false, false, false, false |
url: https://t.co/i/adsct passed: false, false, false, false, false |
|
Yandex Ads
Tests whether the browser blocks the page from loading the tracker at https://yandex.ru/ads/system/header-bidding.js |
url: https://yandex.ru/ads/system/header-bidding.js passed: true, true, true, true, true |
url: https://yandex.ru/ads/system/header-bidding.js passed: false, false, false, false, false |
url: https://yandex.ru/ads/system/header-bidding.js passed: false, false, false, false, false |
url: https://yandex.ru/ads/system/header-bidding.js passed: false |
url: https://yandex.ru/ads/system/header-bidding.js passed: true, true, true, true |
url: https://yandex.ru/ads/system/header-bidding.js passed: true, true, true, true, true |
url: https://yandex.ru/ads/system/header-bidding.js passed: false, false, false, false, false |
url: https://yandex.ru/ads/system/header-bidding.js passed: false, false, false, false, false |
url: https://yandex.ru/ads/system/header-bidding.js passed: false, false, false, false, false |
url: https://yandex.ru/ads/system/header-bidding.js passed: false, false, false, false, false |
url: https://yandex.ru/ads/system/header-bidding.js passed: false, false, false, false, false |
|
Tracking cookie protection testsWhich browsers block important known tracking cookies?
A large fraction of web pages on the web have hidden third-party trackers that read and write cookies in your browser. These cookies can be used to track your browsing across websites. This section checks to see if a browser stops cross-site tracking by cookies from 20 of the largest trackers listed by https://whotracks.me.`, |
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Adobe
Tests whether the browser stops cookies from munchkin.marketo.net from tracking users across websites. |
passed: true, true, true, true, true url: https://munchkin.marketo.net/munchkin.js cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://munchkin.marketo.net/munchkin.js cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://munchkin.marketo.net/munchkin.js cookieFound: false, false, false, false, false |
passed: true url: https://munchkin.marketo.net/munchkin.js cookieFound: false |
passed: true, true, true, true url: https://munchkin.marketo.net/munchkin.js cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://munchkin.marketo.net/munchkin.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://munchkin.marketo.net/munchkin.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://munchkin.marketo.net/munchkin.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://munchkin.marketo.net/munchkin.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://munchkin.marketo.net/munchkin.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://munchkin.marketo.net/munchkin.js cookieFound: false, false, false, false, false |
|
Adobe Audience Manager
Tests whether the browser stops cookies from dpm.demdex.net from tracking users across websites. |
passed: true, true, true, true, true url: https://dpm.demdex.net/ibs cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://dpm.demdex.net/ibs cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://dpm.demdex.net/ibs cookieFound: false, false, false, false, false |
passed: true url: https://dpm.demdex.net/ibs cookieFound: false |
passed: true, true, true, true url: https://dpm.demdex.net/ibs cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://dpm.demdex.net/ibs cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://dpm.demdex.net/ibs cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://dpm.demdex.net/ibs cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://dpm.demdex.net/ibs cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://dpm.demdex.net/ibs cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://dpm.demdex.net/ibs cookieFound: false, false, false, false, false |
|
Amazon adsystem
Tests whether the browser stops cookies from s.amazon-adsystem.com from tracking users across websites. |
passed: true, true, true, true, true url: https://s.amazon-adsystem.com/dcm cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://s.amazon-adsystem.com/dcm cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://s.amazon-adsystem.com/dcm cookieFound: false, false, false, false, false |
passed: true url: https://s.amazon-adsystem.com/dcm cookieFound: false |
passed: true, true, true, true url: https://s.amazon-adsystem.com/dcm cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://s.amazon-adsystem.com/dcm cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://s.amazon-adsystem.com/dcm cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://s.amazon-adsystem.com/dcm cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://s.amazon-adsystem.com/dcm cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://s.amazon-adsystem.com/dcm cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://s.amazon-adsystem.com/dcm cookieFound: false, false, false, false, false |
|
AppNexus
Tests whether the browser stops cookies from ib.adnxs.com from tracking users across websites. |
passed: true, true, true, true, true url: https://ib.adnxs.com/px?id=178248&t=1 cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://ib.adnxs.com/px?id=178248&t=1 cookieFound: true, true, true, true, true |
passed: false, false, false, false, false url: https://ib.adnxs.com/px?id=178248&t=1 cookieFound: true, true, true, true, true |
passed: true url: https://ib.adnxs.com/px?id=178248&t=1 cookieFound: false |
passed: true, true, true, true url: https://ib.adnxs.com/px?id=178248&t=1 cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://ib.adnxs.com/px?id=178248&t=1 cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://ib.adnxs.com/px?id=178248&t=1 cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://ib.adnxs.com/px?id=178248&t=1 cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://ib.adnxs.com/px?id=178248&t=1 cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://ib.adnxs.com/px?id=178248&t=1 cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://ib.adnxs.com/px?id=178248&t=1 cookieFound: false, false, false, false, false |
|
Bing Ads
Tests whether the browser stops cookies from bat.bing.com from tracking users across websites. |
passed: true, true, true, true, true url: https://bat.bing.com/bat.js cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://bat.bing.com/bat.js cookieFound: true, true, true, true, true |
passed: true, false, false, false, false url: https://bat.bing.com/bat.js cookieFound: false, true, true, true, true |
passed: true url: https://bat.bing.com/bat.js cookieFound: false |
passed: true, true, true, true url: https://bat.bing.com/bat.js cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://bat.bing.com/bat.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://bat.bing.com/bat.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://bat.bing.com/bat.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://bat.bing.com/bat.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://bat.bing.com/bat.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://bat.bing.com/bat.js cookieFound: false, false, false, false, false |
|
Chartbeat
Tests whether the browser stops cookies from static.chartbeat.com from tracking users across websites. |
passed: true, true, true, true, true url: https://static.chartbeat.com/js/chartbeat.js cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://static.chartbeat.com/js/chartbeat.js cookieFound: true, true, true, true, true |
passed: true, false, false, false, false url: https://static.chartbeat.com/js/chartbeat.js cookieFound: false, true, true, true, true |
passed: true url: https://static.chartbeat.com/js/chartbeat.js cookieFound: false |
passed: true, true, true, true url: https://static.chartbeat.com/js/chartbeat.js cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://static.chartbeat.com/js/chartbeat.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://static.chartbeat.com/js/chartbeat.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://static.chartbeat.com/js/chartbeat.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://static.chartbeat.com/js/chartbeat.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://static.chartbeat.com/js/chartbeat.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://static.chartbeat.com/js/chartbeat.js cookieFound: false, false, false, false, false |
|
Criteo
Tests whether the browser stops cookies from dis.criteo.com from tracking users across websites. |
passed: true, true, true, true, true url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx cookieFound: false, false, false, false, false |
passed: true url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx cookieFound: false |
passed: true, true, true, true url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx cookieFound: false, false, false, false, false |
|
DoubleClick (Google)
Tests whether the browser stops cookies from securepubads.g.doubleclick.net from tracking users across websites. |
passed: true, true, true, true, true url: https://securepubads.g.doubleclick.net/static/glade.js cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://securepubads.g.doubleclick.net/static/glade.js cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://securepubads.g.doubleclick.net/static/glade.js cookieFound: false, false, false, false, false |
passed: true url: https://securepubads.g.doubleclick.net/static/glade.js cookieFound: false |
passed: true, true, true, true url: https://securepubads.g.doubleclick.net/static/glade.js cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://securepubads.g.doubleclick.net/static/glade.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://securepubads.g.doubleclick.net/static/glade.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://securepubads.g.doubleclick.net/static/glade.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://securepubads.g.doubleclick.net/static/glade.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://securepubads.g.doubleclick.net/static/glade.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://securepubads.g.doubleclick.net/static/glade.js cookieFound: false, false, false, false, false |
|
Facebook tracking
Tests whether the browser stops cookies from connect.facebook.net from tracking users across websites. |
passed: true, true, true, true, true url: https://connect.facebook.net/en_US/fbevents.js cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://connect.facebook.net/en_US/fbevents.js cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://connect.facebook.net/en_US/fbevents.js cookieFound: false, false, false, false, false |
passed: true url: https://connect.facebook.net/en_US/fbevents.js cookieFound: false |
passed: true, true, true, true url: https://connect.facebook.net/en_US/fbevents.js cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://connect.facebook.net/en_US/fbevents.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://connect.facebook.net/en_US/fbevents.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://connect.facebook.net/en_US/fbevents.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://connect.facebook.net/en_US/fbevents.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://connect.facebook.net/en_US/fbevents.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://connect.facebook.net/en_US/fbevents.js cookieFound: false, false, false, false, false |
|
Google (third-party ad pixel)
Tests whether the browser stops cookies from www.google.com from tracking users across websites. |
passed: true, true, true, true, true url: https://www.google.com/pagead/1p-user-list/ cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://www.google.com/pagead/1p-user-list/ cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://www.google.com/pagead/1p-user-list/ cookieFound: false, false, false, false, false |
passed: true url: https://www.google.com/pagead/1p-user-list/ cookieFound: false |
passed: true, true, true, true url: https://www.google.com/pagead/1p-user-list/ cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://www.google.com/pagead/1p-user-list/ cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://www.google.com/pagead/1p-user-list/ cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://www.google.com/pagead/1p-user-list/ cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://www.google.com/pagead/1p-user-list/ cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://www.google.com/pagead/1p-user-list/ cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://www.google.com/pagead/1p-user-list/ cookieFound: false, false, false, false, false |
|
Google Analytics
Tests whether the browser stops cookies from google-analytics.com from tracking users across websites. |
passed: true, true, true, true, true url: https://google-analytics.com/urchin.js cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://google-analytics.com/urchin.js cookieFound: true, true, true, true, true |
passed: false, false, false, false, false url: https://google-analytics.com/urchin.js cookieFound: true, true, true, true, true |
passed: true url: https://google-analytics.com/urchin.js cookieFound: false |
passed: true, true, true, true url: https://google-analytics.com/urchin.js cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://google-analytics.com/urchin.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://google-analytics.com/urchin.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://google-analytics.com/urchin.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://google-analytics.com/urchin.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://google-analytics.com/urchin.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://google-analytics.com/urchin.js cookieFound: false, false, false, false, false |
|
Google Tag Manager
Tests whether the browser stops cookies from www.googletagmanager.com from tracking users across websites. |
passed: true, true, true, true, true url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL cookieFound: true, true, true, true, true |
passed: false, false, false, false, false url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL cookieFound: true, true, true, true, true |
passed: true url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL cookieFound: false |
passed: true, true, true, true url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL cookieFound: false, false, false, false, false |
|
Index Exchange
Tests whether the browser stops cookies from dsum-sec.casalemedia.com from tracking users across websites. |
passed: true, true, true, true, true url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 cookieFound: false, false, false, false, false |
passed: true url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 cookieFound: false |
passed: true, true, true, true url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 cookieFound: false, false, false, false, false |
|
New Relic
Tests whether the browser stops cookies from js-agent.newrelic.com from tracking users across websites. |
passed: true, true, true, true, true url: https://js-agent.newrelic.com/nr-1212.min.js cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://js-agent.newrelic.com/nr-1212.min.js cookieFound: true, true, true, true, true |
passed: true, false, false, false, false url: https://js-agent.newrelic.com/nr-1212.min.js cookieFound: false, true, true, true, true |
passed: true url: https://js-agent.newrelic.com/nr-1212.min.js cookieFound: false |
passed: true, true, true, true url: https://js-agent.newrelic.com/nr-1212.min.js cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://js-agent.newrelic.com/nr-1212.min.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://js-agent.newrelic.com/nr-1212.min.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://js-agent.newrelic.com/nr-1212.min.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://js-agent.newrelic.com/nr-1212.min.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://js-agent.newrelic.com/nr-1212.min.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://js-agent.newrelic.com/nr-1212.min.js cookieFound: false, false, false, false, false |
|
Quantcast
Tests whether the browser stops cookies from pixel.quantserve.com from tracking users across websites. |
passed: true, true, true, true, true url: https://pixel.quantserve.com/pixel cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://pixel.quantserve.com/pixel cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://pixel.quantserve.com/pixel cookieFound: false, false, false, false, false |
passed: true url: https://pixel.quantserve.com/pixel cookieFound: false |
passed: true, true, true, true url: https://pixel.quantserve.com/pixel cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://pixel.quantserve.com/pixel cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://pixel.quantserve.com/pixel cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://pixel.quantserve.com/pixel cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://pixel.quantserve.com/pixel cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://pixel.quantserve.com/pixel cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://pixel.quantserve.com/pixel cookieFound: false, false, false, false, false |
|
Scorecard Research Beacon
Tests whether the browser stops cookies from sb.scorecardresearch.com from tracking users across websites. |
passed: true, true, true, true, true url: https://sb.scorecardresearch.com/internal-c2/default/cs.js cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://sb.scorecardresearch.com/internal-c2/default/cs.js cookieFound: true, true, true, true, true |
passed: true, false, false, false, false url: https://sb.scorecardresearch.com/internal-c2/default/cs.js cookieFound: false, true, true, true, true |
passed: true url: https://sb.scorecardresearch.com/internal-c2/default/cs.js cookieFound: false |
passed: true, true, true, true url: https://sb.scorecardresearch.com/internal-c2/default/cs.js cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://sb.scorecardresearch.com/internal-c2/default/cs.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://sb.scorecardresearch.com/internal-c2/default/cs.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://sb.scorecardresearch.com/internal-c2/default/cs.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://sb.scorecardresearch.com/internal-c2/default/cs.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://sb.scorecardresearch.com/internal-c2/default/cs.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://sb.scorecardresearch.com/internal-c2/default/cs.js cookieFound: false, false, false, false, false |
|
Taboola
Tests whether the browser stops cookies from trc.taboola.com from tracking users across websites. |
passed: true, true, true, true, true url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json cookieFound: false, false, false, false, false |
passed: true url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json cookieFound: false |
passed: true, true, true, true url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json cookieFound: false, false, false, false, false |
|
Twitter pixel
Tests whether the browser stops cookies from t.co from tracking users across websites. |
passed: true, true, true, true, true url: https://t.co/i/adsct cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://t.co/i/adsct cookieFound: true, true, true, true, true |
passed: false, false, false, false, false url: https://t.co/i/adsct cookieFound: true, true, true, true, true |
passed: true url: https://t.co/i/adsct cookieFound: false |
passed: true, true, true, true url: https://t.co/i/adsct cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://t.co/i/adsct cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://t.co/i/adsct cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://t.co/i/adsct cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://t.co/i/adsct cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://t.co/i/adsct cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://t.co/i/adsct cookieFound: false, false, false, false, false |
|
Yandex Ads
Tests whether the browser stops cookies from yandex.ru from tracking users across websites. |
passed: true, true, true, true, true url: https://yandex.ru/ads/system/header-bidding.js cookieFound: false, false, false, false, false |
passed: false, false, false, false, false url: https://yandex.ru/ads/system/header-bidding.js cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://yandex.ru/ads/system/header-bidding.js cookieFound: false, false, false, false, false |
passed: true url: https://yandex.ru/ads/system/header-bidding.js cookieFound: false |
passed: true, true, true, true url: https://yandex.ru/ads/system/header-bidding.js cookieFound: false, false, false, false |
passed: true, true, true, true, true url: https://yandex.ru/ads/system/header-bidding.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://yandex.ru/ads/system/header-bidding.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://yandex.ru/ads/system/header-bidding.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://yandex.ru/ads/system/header-bidding.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://yandex.ru/ads/system/header-bidding.js cookieFound: false, false, false, false, false |
passed: true, true, true, true, true url: https://yandex.ru/ads/system/header-bidding.js cookieFound: false, false, false, false, false |
|
Cross-session first-party tracking testsWhich browsers prevent websites from tracking you across browser sessions?
A common vulnerability of web browsers is that they allow websites ("first parties") to 'tag' your browser with some tracking data. This tag can be used to re-identify you when you return to a website you visited before. This category of leaks can be prevented by browser if they clean or isolate data between browser sessions. (In cases where a user has logged into a website or entered detailed information, it may be justifiable for a browser to retain information across sessions. These tests check when no such justification exists: when you have entered no significant information into a website, will the browser still retain data that allows you to be tracked across sessions?)
|
|||||||||||
|
Alt-Svc
Alt-Svc allows the server to indicate to the web browser that a resource should be loaded on a different server. Because this is a persistent setting, it could be used to track users across websites if it is not correctly partitioned. |
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: h3, h3, h3, h3, h3
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: h3, h3, h3, h3, h3
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: h3, h3, h3, h3, h3
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3
result, different session: h3
unsupported: false
passed: false
test failed: false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3
result, different session: h2, h2, h2, h2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: h2, h2, h2, h2, h2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: h3, h3, h3, h3, h3
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h2, h3, h2, h3
result, different session: h2, h3, h2, h3, h2
unsupported: false, true, false, true, false
passed: true, true, true
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h2, h2, h2, h2, h2
result, different session: h2, h2, h2, h2, h2
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: h3, h3, h3, h3, h3
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: h3, h3, h3, h3, h3
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
CacheStorage
The Cache API is a content storage mechanism originally introduced to support ServiceWorkers. If the same Cache object is accessible to multiple websites, it can be abused to track users. |
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
931465cb-4696-44be-b033-23aec5d2c855_1p,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_1p,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_1p,
1cbe1916-da9f-4309-b801-fac176d6e1e7_1p,
546c9727-9932-436c-a129-a7de9fe6f1de_1p
result, different session:
931465cb-4696-44be-b033-23aec5d2c855_1p,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_1p,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_1p,
1cbe1916-da9f-4309-b801-fac176d6e1e7_1p,
546c9727-9932-436c-a129-a7de9fe6f1de_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_1p,
dfd72730-58b8-4750-bb50-442519553485_1p,
6d5862f9-070c-4362-9d8e-4929d0fc2515_1p,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_1p,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_1p
result, different session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_1p,
dfd72730-58b8-4750-bb50-442519553485_1p,
6d5862f9-070c-4362-9d8e-4929d0fc2515_1p,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_1p,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
844a737a-74d3-444e-8390-a7a51390ab87_1p,
84f35658-c039-44c4-af4d-a76d45d00aa9_1p,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_1p,
2c972f0b-79f3-4a76-9927-e04fbaf24402_1p,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_1p
result, different session:
844a737a-74d3-444e-8390-a7a51390ab87_1p,
84f35658-c039-44c4-af4d-a76d45d00aa9_1p,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_1p,
2c972f0b-79f3-4a76-9927-e04fbaf24402_1p,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session: bcd34bcb-7c83-44a0-9eda-5688246ef304_1p
result, different session: bcd34bcb-7c83-44a0-9eda-5688246ef304_1p
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
96ac1e6a-6196-4192-8d14-4d4161017c0e_1p,
fcb80954-6b9f-4446-826b-50ee63df5a49_1p,
0c73a977-7e59-4e27-9886-fd27d9af7cb6_1p,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3_1p
result, different session:
Error: cacheKeys[0] is undefined,
Error: cacheKeys[0] is undefined,
Error: cacheKeys[0] is undefined,
Error: cacheKeys[0] is undefined
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
result, different session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_1p,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_1p,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_1p,
dd5c9e21-e013-4d68-a26f-427893eb7663_1p,
edf66be4-a523-482a-b119-d15528cdff51_1p
result, different session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_1p,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_1p,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_1p,
dd5c9e21-e013-4d68-a26f-427893eb7663_1p,
edf66be4-a523-482a-b119-d15528cdff51_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
8124f977-0794-4d12-ac8c-63584f991299_1p,
52fb10c0-c3f0-4583-8aa1-bb667b988d77_1p,
28d41eef-e045-4404-b29a-660557b14eba_1p,
11098c2f-f6c6-4b5e-b3f6-32576f744002_1p
result, different session:
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url')
unsupported: true, false, false, false, false
passed: , true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
result, different session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_1p,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_1p,
e40a919a-ea56-446f-99f8-acfe66cea299_1p,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_1p,
04750426-c791-47cf-8d99-bd4c035ffcd3_1p
result, different session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_1p,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_1p,
e40a919a-ea56-446f-99f8-acfe66cea299_1p,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_1p,
04750426-c791-47cf-8d99-bd4c035ffcd3_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_1p,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_1p,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_1p,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_1p,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_1p
result, different session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_1p,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_1p,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_1p,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_1p,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
cookie (HTTP)
The cookie, first introduced by Netscape in 1994, is a small amount of data stored by your browser on a website's behalf. It has legitimate uses, but it is also the classic cross-site tracking mechanism, and today still the most popular method of tracking users across websites. Browsers can stop cookies from being used for cross-site tracking by either blocking or partitioning them. |
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
931465cb-4696-44be-b033-23aec5d2c855_1p_http,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_1p_http,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_1p_http,
1cbe1916-da9f-4309-b801-fac176d6e1e7_1p_http,
546c9727-9932-436c-a129-a7de9fe6f1de_1p_http
result, different session:
931465cb-4696-44be-b033-23aec5d2c855_1p_http,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_1p_http,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_1p_http,
1cbe1916-da9f-4309-b801-fac176d6e1e7_1p_http,
546c9727-9932-436c-a129-a7de9fe6f1de_1p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_1p_http,
dfd72730-58b8-4750-bb50-442519553485_1p_http,
6d5862f9-070c-4362-9d8e-4929d0fc2515_1p_http,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_1p_http,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_1p_http
result, different session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_1p_http,
dfd72730-58b8-4750-bb50-442519553485_1p_http,
6d5862f9-070c-4362-9d8e-4929d0fc2515_1p_http,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_1p_http,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_1p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
844a737a-74d3-444e-8390-a7a51390ab87_1p_http,
84f35658-c039-44c4-af4d-a76d45d00aa9_1p_http,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_1p_http,
2c972f0b-79f3-4a76-9927-e04fbaf24402_1p_http,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_1p_http
result, different session:
844a737a-74d3-444e-8390-a7a51390ab87_1p_http,
84f35658-c039-44c4-af4d-a76d45d00aa9_1p_http,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_1p_http,
2c972f0b-79f3-4a76-9927-e04fbaf24402_1p_http,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_1p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session: bcd34bcb-7c83-44a0-9eda-5688246ef304_1p_http
result, different session: bcd34bcb-7c83-44a0-9eda-5688246ef304_1p_http
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
96ac1e6a-6196-4192-8d14-4d4161017c0e_1p_http,
fcb80954-6b9f-4446-826b-50ee63df5a49_1p_http,
0c73a977-7e59-4e27-9886-fd27d9af7cb6_1p_http,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3_1p_http
result, different session: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
90e9d075-a493-4589-90a5-cb9ed367a5ff_1p_http,
3d0759ec-76e7-420f-9fa5-8f9cd1ba98be_1p_http,
302c7c9a-be1d-4f73-9cc3-4a9fd90d065e_1p_http,
c6908ef1-96b7-4022-9fb1-6af958c08eab_1p_http,
9a187200-4907-4ac4-bb1a-a500a9dd6076_1p_http
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_1p_http,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_1p_http,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_1p_http,
dd5c9e21-e013-4d68-a26f-427893eb7663_1p_http,
edf66be4-a523-482a-b119-d15528cdff51_1p_http
result, different session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_1p_http,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_1p_http,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_1p_http,
dd5c9e21-e013-4d68-a26f-427893eb7663_1p_http,
edf66be4-a523-482a-b119-d15528cdff51_1p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
a94af09e-7597-4227-8646-e09e247d5c53_1p_http,
8124f977-0794-4d12-ac8c-63584f991299_1p_http,
52fb10c0-c3f0-4583-8aa1-bb667b988d77_1p_http,
28d41eef-e045-4404-b29a-660557b14eba_1p_http,
11098c2f-f6c6-4b5e-b3f6-32576f744002_1p_http
result, different session:
a94af09e-7597-4227-8646-e09e247d5c53_1p_http,
8124f977-0794-4d12-ac8c-63584f991299_1p_http,
52fb10c0-c3f0-4583-8aa1-bb667b988d77_1p_http,
28d41eef-e045-4404-b29a-660557b14eba_1p_http,
11098c2f-f6c6-4b5e-b3f6-32576f744002_1p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
f35ff98f-1c72-41f0-954f-7a7c66323baa_1p_http,
da711384-b29c-4af1-b951-26d3bbd655e2_1p_http,
f721fb55-8277-4850-85e8-f99056490543_1p_http,
576b6726-e0d6-4a4b-9fca-92205c480e69_1p_http,
d91aa27f-67c8-4e96-81cf-f8c0dbd65cab_1p_http
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_1p_http,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_1p_http,
e40a919a-ea56-446f-99f8-acfe66cea299_1p_http,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_1p_http,
04750426-c791-47cf-8d99-bd4c035ffcd3_1p_http
result, different session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_1p_http,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_1p_http,
e40a919a-ea56-446f-99f8-acfe66cea299_1p_http,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_1p_http,
04750426-c791-47cf-8d99-bd4c035ffcd3_1p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_1p_http,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_1p_http,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_1p_http,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_1p_http,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_1p_http
result, different session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_1p_http,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_1p_http,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_1p_http,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_1p_http,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_1p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
cookie (JS)
The cookie, first introduced by Netscape in 1994, is a small amount of data stored by your browser on a website's behalf. It has legitimate uses, but it is also the classic cross-site tracking mechanism, and today still the most popular method of tracking users across websites. Browsers can stop cookies from being used for cross-site tracking by either blocking or partitioning them. |
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
931465cb-4696-44be-b033-23aec5d2c855_1p_js,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_1p_js,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_1p_js,
1cbe1916-da9f-4309-b801-fac176d6e1e7_1p_js,
546c9727-9932-436c-a129-a7de9fe6f1de_1p_js
result, different session:
931465cb-4696-44be-b033-23aec5d2c855_1p_js,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_1p_js,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_1p_js,
1cbe1916-da9f-4309-b801-fac176d6e1e7_1p_js,
546c9727-9932-436c-a129-a7de9fe6f1de_1p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_1p_js,
dfd72730-58b8-4750-bb50-442519553485_1p_js,
6d5862f9-070c-4362-9d8e-4929d0fc2515_1p_js,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_1p_js,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_1p_js
result, different session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_1p_js,
dfd72730-58b8-4750-bb50-442519553485_1p_js,
6d5862f9-070c-4362-9d8e-4929d0fc2515_1p_js,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_1p_js,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_1p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
844a737a-74d3-444e-8390-a7a51390ab87_1p_js,
84f35658-c039-44c4-af4d-a76d45d00aa9_1p_js,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_1p_js,
2c972f0b-79f3-4a76-9927-e04fbaf24402_1p_js,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_1p_js
result, different session:
844a737a-74d3-444e-8390-a7a51390ab87_1p_js,
84f35658-c039-44c4-af4d-a76d45d00aa9_1p_js,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_1p_js,
2c972f0b-79f3-4a76-9927-e04fbaf24402_1p_js,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_1p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session: bcd34bcb-7c83-44a0-9eda-5688246ef304_1p_js
result, different session: bcd34bcb-7c83-44a0-9eda-5688246ef304_1p_js
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
96ac1e6a-6196-4192-8d14-4d4161017c0e_1p_js,
fcb80954-6b9f-4446-826b-50ee63df5a49_1p_js,
0c73a977-7e59-4e27-9886-fd27d9af7cb6_1p_js,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3_1p_js
result, different session: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
90e9d075-a493-4589-90a5-cb9ed367a5ff_1p_js,
3d0759ec-76e7-420f-9fa5-8f9cd1ba98be_1p_js,
302c7c9a-be1d-4f73-9cc3-4a9fd90d065e_1p_js,
c6908ef1-96b7-4022-9fb1-6af958c08eab_1p_js,
9a187200-4907-4ac4-bb1a-a500a9dd6076_1p_js
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_1p_js,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_1p_js,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_1p_js,
dd5c9e21-e013-4d68-a26f-427893eb7663_1p_js,
edf66be4-a523-482a-b119-d15528cdff51_1p_js
result, different session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_1p_js,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_1p_js,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_1p_js,
dd5c9e21-e013-4d68-a26f-427893eb7663_1p_js,
edf66be4-a523-482a-b119-d15528cdff51_1p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session: , 8124f977-0794-4d12-ac8c-63584f991299_1p_js, 52fb10c0-c3f0-4583-8aa1-bb667b988d77_1p_js, 28d41eef-e045-4404-b29a-660557b14eba_1p_js, 11098c2f-f6c6-4b5e-b3f6-32576f744002_1p_js
result, different session: , , , ,
unsupported: true, false, false, false, false
passed: , true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
f35ff98f-1c72-41f0-954f-7a7c66323baa_1p_js,
da711384-b29c-4af1-b951-26d3bbd655e2_1p_js,
f721fb55-8277-4850-85e8-f99056490543_1p_js,
576b6726-e0d6-4a4b-9fca-92205c480e69_1p_js,
d91aa27f-67c8-4e96-81cf-f8c0dbd65cab_1p_js
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_1p_js,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_1p_js,
e40a919a-ea56-446f-99f8-acfe66cea299_1p_js,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_1p_js,
04750426-c791-47cf-8d99-bd4c035ffcd3_1p_js
result, different session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_1p_js,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_1p_js,
e40a919a-ea56-446f-99f8-acfe66cea299_1p_js,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_1p_js,
04750426-c791-47cf-8d99-bd4c035ffcd3_1p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_1p_js,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_1p_js,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_1p_js,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_1p_js,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_1p_js
result, different session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_1p_js,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_1p_js,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_1p_js,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_1p_js,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_1p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
CookieStore
The Cookie Store API is an alternative asynchronous API for managing cookies, supported by some browsers. |
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
931465cb-4696-44be-b033-23aec5d2c855_1p,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_1p,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_1p,
1cbe1916-da9f-4309-b801-fac176d6e1e7_1p,
546c9727-9932-436c-a129-a7de9fe6f1de_1p
result, different session:
931465cb-4696-44be-b033-23aec5d2c855_1p,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_1p,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_1p,
1cbe1916-da9f-4309-b801-fac176d6e1e7_1p,
546c9727-9932-436c-a129-a7de9fe6f1de_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_1p,
dfd72730-58b8-4750-bb50-442519553485_1p,
6d5862f9-070c-4362-9d8e-4929d0fc2515_1p,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_1p,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_1p
result, different session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_1p,
dfd72730-58b8-4750-bb50-442519553485_1p,
6d5862f9-070c-4362-9d8e-4929d0fc2515_1p,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_1p,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
844a737a-74d3-444e-8390-a7a51390ab87_1p,
84f35658-c039-44c4-af4d-a76d45d00aa9_1p,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_1p,
2c972f0b-79f3-4a76-9927-e04fbaf24402_1p,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_1p
result, different session:
844a737a-74d3-444e-8390-a7a51390ab87_1p,
84f35658-c039-44c4-af4d-a76d45d00aa9_1p,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_1p,
2c972f0b-79f3-4a76-9927-e04fbaf24402_1p,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session: Error: Unsupported
result, different session: Error: Unsupported
unsupported: true
passed: undefined
test failed: false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_1p,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_1p,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_1p,
dd5c9e21-e013-4d68-a26f-427893eb7663_1p,
edf66be4-a523-482a-b119-d15528cdff51_1p
result, different session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_1p,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_1p,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_1p,
dd5c9e21-e013-4d68-a26f-427893eb7663_1p,
edf66be4-a523-482a-b119-d15528cdff51_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_1p,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_1p,
e40a919a-ea56-446f-99f8-acfe66cea299_1p,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_1p,
04750426-c791-47cf-8d99-bd4c035ffcd3_1p
result, different session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_1p,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_1p,
e40a919a-ea56-446f-99f8-acfe66cea299_1p,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_1p,
04750426-c791-47cf-8d99-bd4c035ffcd3_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_1p,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_1p,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_1p,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_1p,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_1p
result, different session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_1p,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_1p,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_1p,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_1p,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
CSS cache
CSS stylesheets are cached, and if that cache is shared between websites, it can be used to track users across sites. |
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_303260661766267,
fake_29623014330090847,
fake_45447183728731533,
fake_08878194993565547,
fake_838960243832199
result, different session:
fake_303260661766267,
fake_29623014330090847,
fake_45447183728731533,
fake_08878194993565547,
fake_838960243832199
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_9468003091207542,
fake_44269080647084547,
fake_4472557386546592,
fake_5810804653742292,
fake_7600839460196995
result, different session:
fake_9468003091207542,
fake_44269080647084547,
fake_4472557386546592,
fake_5810804653742292,
fake_7600839460196995
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_7750470012740174,
fake_3240725918893619,
fake_06705091443858757,
fake_49474511268826427,
fake_36437940743152764
result, different session:
fake_7750470012740174,
fake_3240725918893619,
fake_06705091443858757,
fake_49474511268826427,
fake_36437940743152764
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session: fake_6813213520561154
result, different session: fake_6813213520561154
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_9442650155647454,
fake_5834111131222726,
fake_38979013663220075,
fake_6840247693712942
result, different session:
fake_7123721181509486,
fake_28381861295550515,
fake_8627225447992695,
fake_07195531510566844
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_4559476724526488,
fake_5856204985081555,
fake_4469222765639289,
fake_9749586675038473,
fake_7503696379184361
result, different session:
fake_8421409559723851,
fake_8653123144986818,
fake_27977450468968623,
fake_661470454636605,
fake_38258512240697873
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_4374116085201418,
fake_1583765976402285,
fake_06109685061009107,
fake_018602752528355193,
fake_15881175133140712
result, different session:
fake_4374116085201418,
fake_1583765976402285,
fake_06109685061009107,
fake_018602752528355193,
fake_15881175133140712
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_7347147425192622,
fake_44343806423396614,
fake_2921056491183358,
fake_4376171508080626,
fake_017224986421872535
result, different session:
fake_7347147425192622,
fake_44343806423396614,
fake_2921056491183358,
fake_4376171508080626,
fake_017224986421872535
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_9368019903977858,
fake_7773681491866282,
fake_25128502863095825,
fake_01148690910975847,
fake_8926709401941657
result, different session:
fake_24244613294188877,
fake_49587629170710557,
fake_20879954140055634,
fake_8910449296159586,
fake_3141099723395415
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_2201161735525261,
fake_14421097454298226,
fake_7073400802605263,
fake_0882193426421638,
fake_13374801433550743
result, different session:
fake_2201161735525261,
fake_14421097454298226,
fake_7073400802605263,
fake_0882193426421638,
fake_13374801433550743
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_9696971718027525,
fake_1592695105262425,
fake_11473117069712035,
fake_8436014339182634,
fake_5337108248669507
result, different session:
fake_9696971718027525,
fake_1592695105262425,
fake_11473117069712035,
fake_8436014339182634,
fake_5337108248669507
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
favicon cache
A favicon is an icon that represents a website, typically shown in browser tab and bookmarks menu. If the favicon cache is not partitioned, it can be used to track users across websites. |
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1
result, different session: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 2, 2, 2, 2, 2
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
fetch cache
When a resource is received via the Fetch API, it is frequently cached. That cache can potentially be abused for cross-site tracking. |
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1
result, different session: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
font cache
Web fonts are sometimes stored in their own cache, which is vulnerable to being abused for cross-site tracking. |
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1
result, different session: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
iframe cache
An iframe is an element in a web page than allows websites to embed a second web page. Caching of this web page could be abused for cross-site tracking. |
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1
result, different session: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
image cache
Caching of images in web browsers is a standard behavior. But if that cache leaks between websites, it can be abused for cross-site tracking. |
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1
result, different session: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
indexedDB
The IndexedDB API exposes a transactional database to web pages. That database can be used to track users across websites, unless it is partitioned. |
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
931465cb-4696-44be-b033-23aec5d2c855_1p,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_1p,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_1p,
1cbe1916-da9f-4309-b801-fac176d6e1e7_1p,
546c9727-9932-436c-a129-a7de9fe6f1de_1p
result, different session:
931465cb-4696-44be-b033-23aec5d2c855_1p,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_1p,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_1p,
1cbe1916-da9f-4309-b801-fac176d6e1e7_1p,
546c9727-9932-436c-a129-a7de9fe6f1de_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_1p,
dfd72730-58b8-4750-bb50-442519553485_1p,
6d5862f9-070c-4362-9d8e-4929d0fc2515_1p,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_1p,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_1p
result, different session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_1p,
dfd72730-58b8-4750-bb50-442519553485_1p,
6d5862f9-070c-4362-9d8e-4929d0fc2515_1p,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_1p,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
844a737a-74d3-444e-8390-a7a51390ab87_1p,
84f35658-c039-44c4-af4d-a76d45d00aa9_1p,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_1p,
2c972f0b-79f3-4a76-9927-e04fbaf24402_1p,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_1p
result, different session:
844a737a-74d3-444e-8390-a7a51390ab87_1p,
84f35658-c039-44c4-af4d-a76d45d00aa9_1p,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_1p,
2c972f0b-79f3-4a76-9927-e04fbaf24402_1p,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session: bcd34bcb-7c83-44a0-9eda-5688246ef304_1p
result, different session: bcd34bcb-7c83-44a0-9eda-5688246ef304_1p
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
96ac1e6a-6196-4192-8d14-4d4161017c0e_1p,
fcb80954-6b9f-4446-826b-50ee63df5a49_1p,
0c73a977-7e59-4e27-9886-fd27d9af7cb6_1p,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3_1p
result, different session: undefined
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
90e9d075-a493-4589-90a5-cb9ed367a5ff_1p,
3d0759ec-76e7-420f-9fa5-8f9cd1ba98be_1p,
302c7c9a-be1d-4f73-9cc3-4a9fd90d065e_1p,
c6908ef1-96b7-4022-9fb1-6af958c08eab_1p,
9a187200-4907-4ac4-bb1a-a500a9dd6076_1p
result, different session: undefined
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_1p,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_1p,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_1p,
dd5c9e21-e013-4d68-a26f-427893eb7663_1p,
edf66be4-a523-482a-b119-d15528cdff51_1p
result, different session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_1p,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_1p,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_1p,
dd5c9e21-e013-4d68-a26f-427893eb7663_1p,
edf66be4-a523-482a-b119-d15528cdff51_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session: , 8124f977-0794-4d12-ac8c-63584f991299_1p, 52fb10c0-c3f0-4583-8aa1-bb667b988d77_1p, 28d41eef-e045-4404-b29a-660557b14eba_1p, 11098c2f-f6c6-4b5e-b3f6-32576f744002_1p
result, different session: undefined
unsupported: true, false, false, false, false
passed: , true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
f35ff98f-1c72-41f0-954f-7a7c66323baa_1p,
da711384-b29c-4af1-b951-26d3bbd655e2_1p,
f721fb55-8277-4850-85e8-f99056490543_1p,
576b6726-e0d6-4a4b-9fca-92205c480e69_1p,
d91aa27f-67c8-4e96-81cf-f8c0dbd65cab_1p
result, different session: undefined
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_1p,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_1p,
e40a919a-ea56-446f-99f8-acfe66cea299_1p,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_1p,
04750426-c791-47cf-8d99-bd4c035ffcd3_1p
result, different session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_1p,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_1p,
e40a919a-ea56-446f-99f8-acfe66cea299_1p,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_1p,
04750426-c791-47cf-8d99-bd4c035ffcd3_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_1p,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_1p,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_1p,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_1p,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_1p
result, different session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_1p,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_1p,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_1p,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_1p,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
localStorage
The localStorage API gives websites access to a key-value database that will remain available across visits. If the localStorage API is not partitioned or blocked, it can also be used to track users across websites. |
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
931465cb-4696-44be-b033-23aec5d2c855_1p,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_1p,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_1p,
1cbe1916-da9f-4309-b801-fac176d6e1e7_1p,
546c9727-9932-436c-a129-a7de9fe6f1de_1p
result, different session:
931465cb-4696-44be-b033-23aec5d2c855_1p,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_1p,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_1p,
1cbe1916-da9f-4309-b801-fac176d6e1e7_1p,
546c9727-9932-436c-a129-a7de9fe6f1de_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_1p,
dfd72730-58b8-4750-bb50-442519553485_1p,
6d5862f9-070c-4362-9d8e-4929d0fc2515_1p,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_1p,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_1p
result, different session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_1p,
dfd72730-58b8-4750-bb50-442519553485_1p,
6d5862f9-070c-4362-9d8e-4929d0fc2515_1p,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_1p,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
844a737a-74d3-444e-8390-a7a51390ab87_1p,
84f35658-c039-44c4-af4d-a76d45d00aa9_1p,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_1p,
2c972f0b-79f3-4a76-9927-e04fbaf24402_1p,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_1p
result, different session:
844a737a-74d3-444e-8390-a7a51390ab87_1p,
84f35658-c039-44c4-af4d-a76d45d00aa9_1p,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_1p,
2c972f0b-79f3-4a76-9927-e04fbaf24402_1p,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session: bcd34bcb-7c83-44a0-9eda-5688246ef304_1p
result, different session: bcd34bcb-7c83-44a0-9eda-5688246ef304_1p
unsupported: false
passed: false
test failed: false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
96ac1e6a-6196-4192-8d14-4d4161017c0e_1p,
fcb80954-6b9f-4446-826b-50ee63df5a49_1p,
0c73a977-7e59-4e27-9886-fd27d9af7cb6_1p,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3_1p
result, different session: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
90e9d075-a493-4589-90a5-cb9ed367a5ff_1p,
3d0759ec-76e7-420f-9fa5-8f9cd1ba98be_1p,
302c7c9a-be1d-4f73-9cc3-4a9fd90d065e_1p,
c6908ef1-96b7-4022-9fb1-6af958c08eab_1p,
9a187200-4907-4ac4-bb1a-a500a9dd6076_1p
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_1p,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_1p,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_1p,
dd5c9e21-e013-4d68-a26f-427893eb7663_1p,
edf66be4-a523-482a-b119-d15528cdff51_1p
result, different session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_1p,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_1p,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_1p,
dd5c9e21-e013-4d68-a26f-427893eb7663_1p,
edf66be4-a523-482a-b119-d15528cdff51_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session: , 8124f977-0794-4d12-ac8c-63584f991299_1p, 52fb10c0-c3f0-4583-8aa1-bb667b988d77_1p, 28d41eef-e045-4404-b29a-660557b14eba_1p, 11098c2f-f6c6-4b5e-b3f6-32576f744002_1p
result, different session: , , , ,
unsupported: true, false, false, false, false
passed: , true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
f35ff98f-1c72-41f0-954f-7a7c66323baa_1p,
da711384-b29c-4af1-b951-26d3bbd655e2_1p,
f721fb55-8277-4850-85e8-f99056490543_1p,
576b6726-e0d6-4a4b-9fca-92205c480e69_1p,
d91aa27f-67c8-4e96-81cf-f8c0dbd65cab_1p
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_1p,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_1p,
e40a919a-ea56-446f-99f8-acfe66cea299_1p,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_1p,
04750426-c791-47cf-8d99-bd4c035ffcd3_1p
result, different session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_1p,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_1p,
e40a919a-ea56-446f-99f8-acfe66cea299_1p,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_1p,
04750426-c791-47cf-8d99-bd4c035ffcd3_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_1p,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_1p,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_1p,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_1p,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_1p
result, different session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_1p,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_1p,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_1p,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_1p,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
prefetch cache
A <link rel='prefetch'...> suggests to browsers they should fetch a resource ahead of time and cache it. But if browsers don't partition this cache, it can be used to track users across websites. |
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: 1
result, different session: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
result, different session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
result, different session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
result, different session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
result, different session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
script cache
Caching of scripts in web browsers is a standard behavior. But if that cache leaks between websites, it can be abused for cross-site tracking. |
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1
result, different session: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
XMLHttpRequest cache
Similar to the newer Fetch API, any resource received may be cached by the browser. The cache is potentially vulnerable to cross-site tracking attack. |
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1
result, different session: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
Cross-session third-party tracking testsWhich browsers prevent third-party trackers from tracking you across browser sessions?
A common vulnerability of web browsers is that they allow third-party trackers to 'tag' your browser with some tracking data. This tag can be used to re-identify you when you return to a website you visited before. This category of leaks can be prevented by browser if they clean or isolate data between browser sessions. (In cases where a user has logged into a website or entered detailed information, it may be justifiable for a browser to retain information across sessions. These tests check when no such justification exists: when you have entered no significant information into a website, will the browser still retain data that allows you to be tracked across sessions?) |
|||||||||||
|
Alt-Svc
Alt-Svc allows the server to indicate to the web browser that a resource should be loaded on a different server. Because this is a persistent setting, it could be used to track users across websites if it is not correctly partitioned. |
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: h3, h3, h3, h3, h3
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: h3, h3, h3, h3, h3
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: h3, h3, h3, h3, h3
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3
result, different session: h3
unsupported: false
passed: false
test failed: false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3
result, different session: h2, h2, h2, h2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: h2, h2, h2, h2, h2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: h3, h3, h3, h3, h3
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h2, h2, h2, h2, h2
result, different session: h3, h3, h3, h3, h3
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h2, h2, h2, h2, h2
result, different session: h2, h2, h2, h2, h2
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: h3, h3, h3, h3, h3
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: h3, h3, h3, h3, h3
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
CacheStorage
The Cache API is a content storage mechanism originally introduced to support ServiceWorkers. If the same Cache object is accessible to multiple websites, it can be abused to track users. |
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
931465cb-4696-44be-b033-23aec5d2c855_3p,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_3p,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_3p,
1cbe1916-da9f-4309-b801-fac176d6e1e7_3p,
546c9727-9932-436c-a129-a7de9fe6f1de_3p
result, different session:
931465cb-4696-44be-b033-23aec5d2c855_3p,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_3p,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_3p,
1cbe1916-da9f-4309-b801-fac176d6e1e7_3p,
546c9727-9932-436c-a129-a7de9fe6f1de_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_3p,
dfd72730-58b8-4750-bb50-442519553485_3p,
6d5862f9-070c-4362-9d8e-4929d0fc2515_3p,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_3p,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_3p
result, different session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_3p,
dfd72730-58b8-4750-bb50-442519553485_3p,
6d5862f9-070c-4362-9d8e-4929d0fc2515_3p,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_3p,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
844a737a-74d3-444e-8390-a7a51390ab87_3p,
84f35658-c039-44c4-af4d-a76d45d00aa9_3p,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_3p,
2c972f0b-79f3-4a76-9927-e04fbaf24402_3p,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_3p
result, different session:
844a737a-74d3-444e-8390-a7a51390ab87_3p,
84f35658-c039-44c4-af4d-a76d45d00aa9_3p,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_3p,
2c972f0b-79f3-4a76-9927-e04fbaf24402_3p,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session: bcd34bcb-7c83-44a0-9eda-5688246ef304_3p
result, different session: bcd34bcb-7c83-44a0-9eda-5688246ef304_3p
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
96ac1e6a-6196-4192-8d14-4d4161017c0e_3p,
fcb80954-6b9f-4446-826b-50ee63df5a49_3p,
0c73a977-7e59-4e27-9886-fd27d9af7cb6_3p,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3_3p
result, different session:
Error: cacheKeys[0] is undefined,
Error: cacheKeys[0] is undefined,
Error: cacheKeys[0] is undefined,
Error: cacheKeys[0] is undefined
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
result, different session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_3p,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_3p,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_3p,
dd5c9e21-e013-4d68-a26f-427893eb7663_3p,
edf66be4-a523-482a-b119-d15528cdff51_3p
result, different session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_3p,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_3p,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_3p,
dd5c9e21-e013-4d68-a26f-427893eb7663_3p,
edf66be4-a523-482a-b119-d15528cdff51_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url')
result, different session:
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url')
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
result, different session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_3p,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_3p,
e40a919a-ea56-446f-99f8-acfe66cea299_3p,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_3p,
04750426-c791-47cf-8d99-bd4c035ffcd3_3p
result, different session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_3p,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_3p,
e40a919a-ea56-446f-99f8-acfe66cea299_3p,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_3p,
04750426-c791-47cf-8d99-bd4c035ffcd3_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_3p,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_3p,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_3p,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_3p,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_3p
result, different session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_3p,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_3p,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_3p,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_3p,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
cookie (HTTP)
The cookie, first introduced by Netscape in 1994, is a small amount of data stored by your browser on a website's behalf. It has legitimate uses, but it is also the classic cross-site tracking mechanism, and today still the most popular method of tracking users across websites. Browsers can stop cookies from being used for cross-site tracking by either blocking or partitioning them. |
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
931465cb-4696-44be-b033-23aec5d2c855_3p_http,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_3p_http,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_3p_http,
1cbe1916-da9f-4309-b801-fac176d6e1e7_3p_http,
546c9727-9932-436c-a129-a7de9fe6f1de_3p_http
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_3p_http,
dfd72730-58b8-4750-bb50-442519553485_3p_http,
6d5862f9-070c-4362-9d8e-4929d0fc2515_3p_http,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_3p_http,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_3p_http
result, different session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_3p_http,
dfd72730-58b8-4750-bb50-442519553485_3p_http,
6d5862f9-070c-4362-9d8e-4929d0fc2515_3p_http,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_3p_http,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_3p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
844a737a-74d3-444e-8390-a7a51390ab87_3p_http,
84f35658-c039-44c4-af4d-a76d45d00aa9_3p_http,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_3p_http,
2c972f0b-79f3-4a76-9927-e04fbaf24402_3p_http,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_3p_http
result, different session:
844a737a-74d3-444e-8390-a7a51390ab87_3p_http,
84f35658-c039-44c4-af4d-a76d45d00aa9_3p_http,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_3p_http,
2c972f0b-79f3-4a76-9927-e04fbaf24402_3p_http,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_3p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session: bcd34bcb-7c83-44a0-9eda-5688246ef304_3p_http
result, different session: bcd34bcb-7c83-44a0-9eda-5688246ef304_3p_http
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
96ac1e6a-6196-4192-8d14-4d4161017c0e_3p_http,
fcb80954-6b9f-4446-826b-50ee63df5a49_3p_http,
0c73a977-7e59-4e27-9886-fd27d9af7cb6_3p_http,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3_3p_http
result, different session: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_3p_http,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_3p_http,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_3p_http,
dd5c9e21-e013-4d68-a26f-427893eb7663_3p_http,
edf66be4-a523-482a-b119-d15528cdff51_3p_http
result, different session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_3p_http,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_3p_http,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_3p_http,
dd5c9e21-e013-4d68-a26f-427893eb7663_3p_http,
edf66be4-a523-482a-b119-d15528cdff51_3p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_3p_http,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_3p_http,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_3p_http,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_3p_http,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_3p_http
result, different session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_3p_http,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_3p_http,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_3p_http,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_3p_http,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_3p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
cookie (JS)
The cookie, first introduced by Netscape in 1994, is a small amount of data stored by your browser on a website's behalf. It has legitimate uses, but it is also the classic cross-site tracking mechanism, and today still the most popular method of tracking users across websites. Browsers can stop cookies from being used for cross-site tracking by either blocking or partitioning them. |
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
931465cb-4696-44be-b033-23aec5d2c855_3p_js,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_3p_js,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_3p_js,
1cbe1916-da9f-4309-b801-fac176d6e1e7_3p_js,
546c9727-9932-436c-a129-a7de9fe6f1de_3p_js
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_3p_js,
dfd72730-58b8-4750-bb50-442519553485_3p_js,
6d5862f9-070c-4362-9d8e-4929d0fc2515_3p_js,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_3p_js,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_3p_js
result, different session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_3p_js,
dfd72730-58b8-4750-bb50-442519553485_3p_js,
6d5862f9-070c-4362-9d8e-4929d0fc2515_3p_js,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_3p_js,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_3p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
844a737a-74d3-444e-8390-a7a51390ab87_3p_js,
84f35658-c039-44c4-af4d-a76d45d00aa9_3p_js,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_3p_js,
2c972f0b-79f3-4a76-9927-e04fbaf24402_3p_js,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_3p_js
result, different session:
844a737a-74d3-444e-8390-a7a51390ab87_3p_js,
84f35658-c039-44c4-af4d-a76d45d00aa9_3p_js,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_3p_js,
2c972f0b-79f3-4a76-9927-e04fbaf24402_3p_js,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_3p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session: bcd34bcb-7c83-44a0-9eda-5688246ef304_3p_js
result, different session: bcd34bcb-7c83-44a0-9eda-5688246ef304_3p_js
unsupported: false
passed: false
test failed: false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
96ac1e6a-6196-4192-8d14-4d4161017c0e_3p_js,
fcb80954-6b9f-4446-826b-50ee63df5a49_3p_js,
0c73a977-7e59-4e27-9886-fd27d9af7cb6_3p_js,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3_3p_js
result, different session: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_3p_js,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_3p_js,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_3p_js,
dd5c9e21-e013-4d68-a26f-427893eb7663_3p_js,
edf66be4-a523-482a-b119-d15528cdff51_3p_js
result, different session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_3p_js,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_3p_js,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_3p_js,
dd5c9e21-e013-4d68-a26f-427893eb7663_3p_js,
edf66be4-a523-482a-b119-d15528cdff51_3p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_3p_js,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_3p_js,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_3p_js,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_3p_js,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_3p_js
result, different session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_3p_js,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_3p_js,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_3p_js,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_3p_js,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_3p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
CookieStore
The Cookie Store API is an alternative asynchronous API for managing cookies, supported by some browsers. |
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
931465cb-4696-44be-b033-23aec5d2c855_3p,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_3p,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_3p,
1cbe1916-da9f-4309-b801-fac176d6e1e7_3p,
546c9727-9932-436c-a129-a7de9fe6f1de_3p
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_3p,
dfd72730-58b8-4750-bb50-442519553485_3p,
6d5862f9-070c-4362-9d8e-4929d0fc2515_3p,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_3p,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_3p
result, different session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_3p,
dfd72730-58b8-4750-bb50-442519553485_3p,
6d5862f9-070c-4362-9d8e-4929d0fc2515_3p,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_3p,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
844a737a-74d3-444e-8390-a7a51390ab87_3p,
84f35658-c039-44c4-af4d-a76d45d00aa9_3p,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_3p,
2c972f0b-79f3-4a76-9927-e04fbaf24402_3p,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_3p
result, different session:
844a737a-74d3-444e-8390-a7a51390ab87_3p,
84f35658-c039-44c4-af4d-a76d45d00aa9_3p,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_3p,
2c972f0b-79f3-4a76-9927-e04fbaf24402_3p,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session: Error: Unsupported
result, different session: Error: Unsupported
unsupported: true
passed: undefined
test failed: false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_3p,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_3p,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_3p,
dd5c9e21-e013-4d68-a26f-427893eb7663_3p,
edf66be4-a523-482a-b119-d15528cdff51_3p
result, different session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_3p,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_3p,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_3p,
dd5c9e21-e013-4d68-a26f-427893eb7663_3p,
edf66be4-a523-482a-b119-d15528cdff51_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_3p,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_3p,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_3p,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_3p,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_3p
result, different session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_3p,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_3p,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_3p,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_3p,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
CSS cache
CSS stylesheets are cached, and if that cache is shared between websites, it can be used to track users across sites. |
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_7108254027960765,
fake_3277068645886545,
fake_9252627337329615,
fake_22138257899801683,
fake_6344036225699015
result, different session:
fake_7108254027960765,
fake_3277068645886545,
fake_9252627337329615,
fake_22138257899801683,
fake_6344036225699015
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_261961009158896,
fake_17302281960747257,
fake_04893765658971727,
fake_9529483164136312,
fake_15370818966604394
result, different session:
fake_261961009158896,
fake_17302281960747257,
fake_04893765658971727,
fake_9529483164136312,
fake_15370818966604394
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_6253851540992794,
fake_5034345025531601,
fake_1113104391390376,
fake_4023596797080895,
fake_5587314233365306
result, different session:
fake_6253851540992794,
fake_5034345025531601,
fake_1113104391390376,
fake_4023596797080895,
fake_5587314233365306
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session: fake_44171364411136205
result, different session: fake_44171364411136205
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_91447810629587,
fake_16590838728425172,
fake_6106446278343334,
fake_3125619325414515
result, different session:
fake_3878903544108505,
fake_9540436028992576,
fake_42559098817321717,
fake_26202840382933523
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_8246729933653638,
fake_3792723045516919,
fake_34756315979177943,
fake_6311222714553422,
fake_1277864109081006
result, different session:
fake_3907401788196547,
fake_6487979515451767,
fake_6670780266451954,
fake_9504553393812158,
fake_9289020819413907
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_7554082427972599,
fake_36533921571897854,
fake_43294876209255584,
fake_5541773296617933,
fake_1813794167000693
result, different session:
fake_7554082427972599,
fake_36533921571897854,
fake_43294876209255584,
fake_5541773296617933,
fake_1813794167000693
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_37074000470481994,
fake_22025760260046523,
fake_6250133221819871,
fake_520866695153855,
fake_7768333428324719
result, different session:
fake_37074000470481994,
fake_22025760260046523,
fake_6250133221819871,
fake_520866695153855,
fake_7768333428324719
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_12547155311096558,
fake_41637838342481914,
fake_3000630489404128,
fake_5532104436730381,
fake_5464138675854175
result, different session:
fake_6317648210263465,
fake_21456028543833394,
fake_8204635018733994,
fake_5314990278482361,
fake_4440230473805462
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_8654276428029126,
fake_5111534069244561,
fake_6996875962719968,
fake_592022872026378,
fake_7832367079843356
result, different session:
fake_8654276428029126,
fake_5111534069244561,
fake_6996875962719968,
fake_592022872026378,
fake_7832367079843356
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_04381823435067855,
fake_687797517455015,
fake_21750939474058328,
fake_289403600436275,
fake_8450775581412693
result, different session:
fake_04381823435067855,
fake_687797517455015,
fake_21750939474058328,
fake_289403600436275,
fake_8450775581412693
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
favicon cache
A favicon is an icon that represents a website, typically shown in browser tab and bookmarks menu. If the favicon cache is not partitioned, it can be used to track users across websites. |
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1
result, different session: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 2, 2, 2, 2, 2
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
fetch cache
When a resource is received via the Fetch API, it is frequently cached. That cache can potentially be abused for cross-site tracking. |
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1
result, different session: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
font cache
Web fonts are sometimes stored in their own cache, which is vulnerable to being abused for cross-site tracking. |
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1
result, different session: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
iframe cache
An iframe is an element in a web page than allows websites to embed a second web page. Caching of this web page could be abused for cross-site tracking. |
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1
result, different session: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
image cache
Caching of images in web browsers is a standard behavior. But if that cache leaks between websites, it can be abused for cross-site tracking. |
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1
result, different session: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
indexedDB
The IndexedDB API exposes a transactional database to web pages. That database can be used to track users across websites, unless it is partitioned. |
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
931465cb-4696-44be-b033-23aec5d2c855_3p,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_3p,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_3p,
1cbe1916-da9f-4309-b801-fac176d6e1e7_3p,
546c9727-9932-436c-a129-a7de9fe6f1de_3p
result, different session:
931465cb-4696-44be-b033-23aec5d2c855_3p,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_3p,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_3p,
1cbe1916-da9f-4309-b801-fac176d6e1e7_3p,
546c9727-9932-436c-a129-a7de9fe6f1de_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_3p,
dfd72730-58b8-4750-bb50-442519553485_3p,
6d5862f9-070c-4362-9d8e-4929d0fc2515_3p,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_3p,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_3p
result, different session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_3p,
dfd72730-58b8-4750-bb50-442519553485_3p,
6d5862f9-070c-4362-9d8e-4929d0fc2515_3p,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_3p,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
844a737a-74d3-444e-8390-a7a51390ab87_3p,
84f35658-c039-44c4-af4d-a76d45d00aa9_3p,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_3p,
2c972f0b-79f3-4a76-9927-e04fbaf24402_3p,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_3p
result, different session:
844a737a-74d3-444e-8390-a7a51390ab87_3p,
84f35658-c039-44c4-af4d-a76d45d00aa9_3p,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_3p,
2c972f0b-79f3-4a76-9927-e04fbaf24402_3p,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session: bcd34bcb-7c83-44a0-9eda-5688246ef304_3p
result, different session: bcd34bcb-7c83-44a0-9eda-5688246ef304_3p
unsupported: false
passed: false
test failed: false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
96ac1e6a-6196-4192-8d14-4d4161017c0e_3p,
fcb80954-6b9f-4446-826b-50ee63df5a49_3p,
0c73a977-7e59-4e27-9886-fd27d9af7cb6_3p,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3_3p
result, different session: undefined
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
result, different session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_3p,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_3p,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_3p,
dd5c9e21-e013-4d68-a26f-427893eb7663_3p,
edf66be4-a523-482a-b119-d15528cdff51_3p
result, different session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_3p,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_3p,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_3p,
dd5c9e21-e013-4d68-a26f-427893eb7663_3p,
edf66be4-a523-482a-b119-d15528cdff51_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session: undefined
result, different session: undefined
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
result, different session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_3p,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_3p,
e40a919a-ea56-446f-99f8-acfe66cea299_3p,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_3p,
04750426-c791-47cf-8d99-bd4c035ffcd3_3p
result, different session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_3p,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_3p,
e40a919a-ea56-446f-99f8-acfe66cea299_3p,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_3p,
04750426-c791-47cf-8d99-bd4c035ffcd3_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_3p,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_3p,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_3p,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_3p,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_3p
result, different session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_3p,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_3p,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_3p,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_3p,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
localStorage
The localStorage API gives websites access to a key-value database that will remain available across visits. If the localStorage API is not partitioned or blocked, it can also be used to track users across websites. |
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
931465cb-4696-44be-b033-23aec5d2c855_3p,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_3p,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_3p,
1cbe1916-da9f-4309-b801-fac176d6e1e7_3p,
546c9727-9932-436c-a129-a7de9fe6f1de_3p
result, different session:
931465cb-4696-44be-b033-23aec5d2c855_3p,
27945744-fa6e-413f-a8bf-2a7a0611b5c1_3p,
6a9adedc-9d47-4c0b-b8d2-7d86480b78b7_3p,
1cbe1916-da9f-4309-b801-fac176d6e1e7_3p,
546c9727-9932-436c-a129-a7de9fe6f1de_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_3p,
dfd72730-58b8-4750-bb50-442519553485_3p,
6d5862f9-070c-4362-9d8e-4929d0fc2515_3p,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_3p,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_3p
result, different session:
e71e130c-0b89-4d10-ab4f-886da21a7cf9_3p,
dfd72730-58b8-4750-bb50-442519553485_3p,
6d5862f9-070c-4362-9d8e-4929d0fc2515_3p,
b2623ddd-e79a-46a2-a5f4-e3d39a7dfc98_3p,
7b82c7fa-b0cc-4e75-9cce-4e4792ccef76_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
844a737a-74d3-444e-8390-a7a51390ab87_3p,
84f35658-c039-44c4-af4d-a76d45d00aa9_3p,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_3p,
2c972f0b-79f3-4a76-9927-e04fbaf24402_3p,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_3p
result, different session:
844a737a-74d3-444e-8390-a7a51390ab87_3p,
84f35658-c039-44c4-af4d-a76d45d00aa9_3p,
ff09d30d-911e-4547-9ff6-ed74ebfad13c_3p,
2c972f0b-79f3-4a76-9927-e04fbaf24402_3p,
ea978023-f4a0-44c8-aff3-b50e8b90a3d2_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session: bcd34bcb-7c83-44a0-9eda-5688246ef304_3p
result, different session: bcd34bcb-7c83-44a0-9eda-5688246ef304_3p
unsupported: false
passed: false
test failed: false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
96ac1e6a-6196-4192-8d14-4d4161017c0e_3p,
fcb80954-6b9f-4446-826b-50ee63df5a49_3p,
0c73a977-7e59-4e27-9886-fd27d9af7cb6_3p,
bda87ab4-ea6c-49b2-b09d-3fbbd72f35a3_3p
result, different session: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
result, different session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_3p,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_3p,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_3p,
dd5c9e21-e013-4d68-a26f-427893eb7663_3p,
edf66be4-a523-482a-b119-d15528cdff51_3p
result, different session:
d8c3b983-124d-4e71-a763-0d6ed7a989d4_3p,
2e7e8190-3beb-4d79-b288-7d9f4b6521a4_3p,
2ce9aa41-348a-4ae5-a5e8-2e30b2787f1a_3p,
dd5c9e21-e013-4d68-a26f-427893eb7663_3p,
edf66be4-a523-482a-b119-d15528cdff51_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
result, different session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_3p,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_3p,
e40a919a-ea56-446f-99f8-acfe66cea299_3p,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_3p,
04750426-c791-47cf-8d99-bd4c035ffcd3_3p
result, different session:
c59e38bc-da54-464d-9edc-7d3b1e8072c3_3p,
ea127664-f0c4-438a-9fd3-bfeaf6f60369_3p,
e40a919a-ea56-446f-99f8-acfe66cea299_3p,
5749a8b3-1ffe-4a84-b8d9-af924ca119b7_3p,
04750426-c791-47cf-8d99-bd4c035ffcd3_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_3p,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_3p,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_3p,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_3p,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_3p
result, different session:
70ee341f-5d31-44c5-80a4-1f53046c2d28_3p,
e0b6fc3e-312b-4026-ac10-1dec39ecf35a_3p,
9753f0f1-c57e-47cb-86ca-5381bf5aa480_3p,
fca1c805-47eb-4126-a2f9-3e6264cfa3ed_3p,
187d7841-3d79-4d29-bb9e-3cf1e23ef8d8_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
prefetch cache
A <link rel='prefetch'...> suggests to browsers they should fetch a resource ahead of time and cache it. But if browsers don't partition this cache, it can be used to track users across websites. |
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: Error: No requests received
result, different session: Error: No requests received
unsupported: true
passed: undefined
test failed: false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
result, different session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
result, different session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
result, different session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
result, different session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
script cache
Caching of scripts in web browsers is a standard behavior. But if that cache leaks between websites, it can be abused for cross-site tracking. |
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1
result, different session: 1
unsupported: false
passed: false
test failed: false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let script = document.createElement("script");
document.body.appendChild(script);
script.addEventListener("load", () => resolve(key), {once: true});
script.src = testURI("resource", "script", key);
})
read: async (key) => {
let script = document.createElement("script");
document.body.appendChild(script);
let scriptLoadPromise = new Promise((resolve, reject) => {
script.addEventListener("load", resolve, {once: true});
});
script.src = testURI("resource", "script", key);
await scriptLoadPromise;
let response = await fetch(
testURI("ctr", "script", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
XMLHttpRequest cache
Similar to the newer Fetch API, any resource received may be cached by the browser. The cache is potentially vulnerable to cross-site tracking attack. |
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1
result, different session: 1
unsupported: false
passed: false
test failed: false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
DNS privacy testsWhich browsers keep their DNS queries encrypted?
The Domain Name System (DNS) is the method by which web browsers look up the IP address for each website you visit. In a DNS query, a web browser will ask a DNS resolver (somewhere on the internet) for the IP address corresponding to a domain name (such as nytimes.com) for a website you want to visit. Traditionally, most web browsers have sent their DNS queries unencrypted, which means your ISP or anyone else on the network between your computer and the DNS resolver can eavesdrop on the websites you visit. In recent years, web browsers and operating systems have begun to introduce encrypted DNS, including the DNS over HTTPS (DoH) protocol, to encrypt the DNS request from your browser and the response from the resolver to keep your browsing history from leaking. These tests check whether a browser is still protecting its DNS requests by sending them encrypted. |
|||||||||||
|
Location: Brazil
Checks whether the browser decides to use encrypted DNS if the computer is located in Brazil. |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false leak detected: true |
passed: false, false, false, false leak detected: true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
|
Location: China
Checks whether the browser decides to use encrypted DNS if the computer is located in China. |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false leak detected: true |
passed: false, false, false, false leak detected: true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
|
Location: Germany
Checks whether the browser decides to use encrypted DNS if the computer is located in Germany. |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false leak detected: true |
passed: false, false, false, false leak detected: true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
|
Location: India
Checks whether the browser decides to use encrypted DNS if the computer is located in India. |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false leak detected: true |
passed: false, false, false, false leak detected: true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
|
Location: Nigeria
Checks whether the browser decides to use encrypted DNS if the computer is located in Nigeria. |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false leak detected: true |
passed: false, false, false, false leak detected: true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
|
Location: Russia
Checks whether the browser decides to use encrypted DNS if the computer is located in Russia. |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: true leak detected: false |
passed: false, false, false, false leak detected: true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
|
Location: United States
Checks whether the browser decides to use encrypted DNS if the computer is located in United States. |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: true leak detected: false |
passed: false, false, false, false leak detected: true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
|
OS DNS: Cloudflare
Checks whether the browser decides to use encrypted DNS if the operating system's default DNS provider is Cloudflare. |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: true leak detected: false |
passed: true, true, true, true leak detected: false, false, false, false |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
|
OS DNS: Comodo
Checks whether the browser decides to use encrypted DNS if the operating system's default DNS provider is Comodo. |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false leak detected: true |
passed: false, false, false, false leak detected: true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
|
OS DNS: Google
Checks whether the browser decides to use encrypted DNS if the operating system's default DNS provider is Google. |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: true leak detected: false |
passed: true, true, true, true leak detected: false, false, false, false |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
|
OS DNS: Quad9
Checks whether the browser decides to use encrypted DNS if the operating system's default DNS provider is Quad9. |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: true leak detected: false |
passed: true, true, true, true leak detected: false, false, false, false |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: true, true, true, true, true leak detected: false, false, false, false, false |
passed: false, false, false, false, false leak detected: true, true, true, true, true |
passed: false, false, false, false, false leak detected: true, true, true, true, true |