Desktop Browsers(default settings) |
brave 1.66 |
chrome 125.0 |
edge 125.0 |
firefox 125.0 |
librewolf 126.0-1 |
mullvad 13.0 |
opera 109.0 |
safari 17.4 |
tor 13.0 |
ungoogled 125.0 |
vivaldi 6.7 |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
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, Error: Unsupported, h3, h3
result, different first party: h2, h2, h2, h2, h2
unsupported: false, false, true, false, false
passed: 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, 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:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different first party: 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 first party: Error: Unsupported
result, different first party: h2
unsupported: true
passed: undefined
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, 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=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
00a66100-b08b-4582-ac8f-2711162571bf,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e,
16415681-791c-4ee7-a2d0-0e0eb95c23bd,
9ba430f3-d404-4644-b066-01ffe36f8844
result, different first party:
Error: Failed to fetch,
Error: Failed to fetch,
Error: Failed to fetch,
Error: Failed to fetch,
Error: Failed to fetch
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa,
7b359b80-172d-4b65-a36b-19110a97abda,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d,
b44eb135-e90d-4b39-b818-2480ccd896bb,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d
result, different first party:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa,
7b359b80-172d-4b65-a36b-19110a97abda,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d,
b44eb135-e90d-4b39-b818-2480ccd896bb,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d
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=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
b57dc506-f666-4d1d-83bf-2f829f712876,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b,
2cac2b62-69f4-44a0-bd9a-784799f06d82,
d4e07dff-5634-49ee-b3d8-f536d818bdda,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e
result, different first party:
b57dc506-f666-4d1d-83bf-2f829f712876,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b,
2cac2b62-69f4-44a0-bd9a-784799f06d82,
d4e07dff-5634-49ee-b3d8-f536d818bdda,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${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:
1868454d-7cab-4b01-8172-fbb35b6143ae,
24bf3689-1221-4323-9ac0-4fe6d00cd10f,
608a9f7b-7319-4988-a570-f6e40eb68ba1,
5e464ca5-0d33-4a73-8986-6d11f2a6446d,
1729dba0-c4bd-4d95-a3c2-72bce290a745
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=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
37e95148-efb7-444f-9680-3809e549df1c,
55c92202-a724-4edc-8d72-7e4cf04dc072,
e0cfce26-083f-4991-9046-203e6b3c07d2,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa,
b06dce37-0ff0-4b8f-b244-b6de93efe489
result, different first party:
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${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:
bfc84937-a069-433d-813c-05bd8677e0c9,
8f524b58-06a3-48c0-ac49-c55b24645ca9,
869abb3d-901f-4104-9b9d-7828d40b8f6f,
4b1b9d11-831b-47fe-9d24-ff1bbfba4ec5,
13387be8-e9da-4c7e-8786-98573ed549d0
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=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
0c5093fe-ab91-435a-9298-f89bd9ce68a9,
38031c54-5a1f-426c-8d44-6558cafadad7,
eba486b2-5385-4f49-a1d3-17e8de0f549c,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9,
647bde12-d3c3-4c08-a540-be4d27777977
result, different first party:
0c5093fe-ab91-435a-9298-f89bd9ce68a9,
38031c54-5a1f-426c-8d44-6558cafadad7,
eba486b2-5385-4f49-a1d3-17e8de0f549c,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9,
647bde12-d3c3-4c08-a540-be4d27777977
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${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:
46d67fff-34f6-41b0-a602-055fc81add88,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded,
c2c85548-704b-4c5d-9307-e2c68d489d94
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=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party: bc66f7d3-0262-4b48-9c0e-53bdadf8bbba
result, different first party: Error: NetworkError when attempting to fetch resource.
unsupported: false
passed: true
test failed: false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${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:
f050658f-2ebb-4ff5-89e4-0e4fd539feec,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4,
dd6f416b-87e9-46cf-a282-5dc2d81b6141,
880be7bc-321d-4ecd-aee6-43915c366159,
a4dcb550-f602-470e-98c8-45438d5d9421
result, different first party:
f050658f-2ebb-4ff5-89e4-0e4fd539feec,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4,
dd6f416b-87e9-46cf-a282-5dc2d81b6141,
880be7bc-321d-4ecd-aee6-43915c366159,
a4dcb550-f602-470e-98c8-45438d5d9421
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:
1ca74825-73c1-4b34-9150-4b02e25da6cf,
5f0ef772-189c-40cb-adc1-d3343c1a03cf,
e680b667-df62-4bd4-bee3-53e075a20820,
d10395b3-ceaa-47f5-8862-bff9941e893f,
f52e636a-8081-46eb-9b80-8109f65dc7ef
result, different first party:
1ca74825-73c1-4b34-9150-4b02e25da6cf,
5f0ef772-189c-40cb-adc1-d3343c1a03cf,
e680b667-df62-4bd4-bee3-53e075a20820,
d10395b3-ceaa-47f5-8862-bff9941e893f,
f52e636a-8081-46eb-9b80-8109f65dc7ef
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:
00a66100-b08b-4582-ac8f-2711162571bf,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e,
16415681-791c-4ee7-a2d0-0e0eb95c23bd,
9ba430f3-d404-4644-b066-01ffe36f8844
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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa,
7b359b80-172d-4b65-a36b-19110a97abda,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d,
b44eb135-e90d-4b39-b818-2480ccd896bb,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d
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:
b57dc506-f666-4d1d-83bf-2f829f712876,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b,
2cac2b62-69f4-44a0-bd9a-784799f06d82,
d4e07dff-5634-49ee-b3d8-f536d818bdda,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e
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:
1868454d-7cab-4b01-8172-fbb35b6143ae,
24bf3689-1221-4323-9ac0-4fe6d00cd10f,
608a9f7b-7319-4988-a570-f6e40eb68ba1,
5e464ca5-0d33-4a73-8986-6d11f2a6446d,
1729dba0-c4bd-4d95-a3c2-72bce290a745
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:
37e95148-efb7-444f-9680-3809e549df1c,
55c92202-a724-4edc-8d72-7e4cf04dc072,
e0cfce26-083f-4991-9046-203e6b3c07d2,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa,
b06dce37-0ff0-4b8f-b244-b6de93efe489
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:
bfc84937-a069-433d-813c-05bd8677e0c9,
8f524b58-06a3-48c0-ac49-c55b24645ca9,
869abb3d-901f-4104-9b9d-7828d40b8f6f,
4b1b9d11-831b-47fe-9d24-ff1bbfba4ec5,
13387be8-e9da-4c7e-8786-98573ed549d0
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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9,
38031c54-5a1f-426c-8d44-6558cafadad7,
eba486b2-5385-4f49-a1d3-17e8de0f549c,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9,
647bde12-d3c3-4c08-a540-be4d27777977
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:
46d67fff-34f6-41b0-a602-055fc81add88,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded,
c2c85548-704b-4c5d-9307-e2c68d489d94
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: bc66f7d3-0262-4b48-9c0e-53bdadf8bbba
result, different first party: Error: The operation is insecure.
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:
f050658f-2ebb-4ff5-89e4-0e4fd539feec,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4,
dd6f416b-87e9-46cf-a282-5dc2d81b6141,
880be7bc-321d-4ecd-aee6-43915c366159,
a4dcb550-f602-470e-98c8-45438d5d9421
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:
1ca74825-73c1-4b34-9150-4b02e25da6cf,
5f0ef772-189c-40cb-adc1-d3343c1a03cf,
e680b667-df62-4bd4-bee3-53e075a20820,
d10395b3-ceaa-47f5-8862-bff9941e893f,
f52e636a-8081-46eb-9b80-8109f65dc7ef
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:
00a66100-b08b-4582-ac8f-2711162571bf,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e,
16415681-791c-4ee7-a2d0-0e0eb95c23bd,
9ba430f3-d404-4644-b066-01ffe36f8844
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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa,
7b359b80-172d-4b65-a36b-19110a97abda,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d,
b44eb135-e90d-4b39-b818-2480ccd896bb,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d
result, different first party:
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
b57dc506-f666-4d1d-83bf-2f829f712876,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b,
2cac2b62-69f4-44a0-bd9a-784799f06d82,
d4e07dff-5634-49ee-b3d8-f536d818bdda,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e
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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
1868454d-7cab-4b01-8172-fbb35b6143ae,
24bf3689-1221-4323-9ac0-4fe6d00cd10f,
608a9f7b-7319-4988-a570-f6e40eb68ba1,
5e464ca5-0d33-4a73-8986-6d11f2a6446d,
1729dba0-c4bd-4d95-a3c2-72bce290a745
result, different first party:
Error: cacheKeys[0] is undefined,
Error: cacheKeys[0] is undefined,
Error: cacheKeys[0] is undefined,
Error: cacheKeys[0] is undefined,
Error: cacheKeys[0] is undefined
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
37e95148-efb7-444f-9680-3809e549df1c,
55c92202-a724-4edc-8d72-7e4cf04dc072,
e0cfce26-083f-4991-9046-203e6b3c07d2,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa,
b06dce37-0ff0-4b8f-b244-b6de93efe489
result, different first party:
Error: cacheKeys[0] is undefined,
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, 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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9,
38031c54-5a1f-426c-8d44-6558cafadad7,
eba486b2-5385-4f49-a1d3-17e8de0f549c,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9,
647bde12-d3c3-4c08-a540-be4d27777977
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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
46d67fff-34f6-41b0-a602-055fc81add88,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded,
c2c85548-704b-4c5d-9307-e2c68d489d94
result, different first party:
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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.
result, different first party: Error: The operation is insecure.
unsupported: true
passed: undefined
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
f050658f-2ebb-4ff5-89e4-0e4fd539feec,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4,
dd6f416b-87e9-46cf-a282-5dc2d81b6141,
880be7bc-321d-4ecd-aee6-43915c366159,
a4dcb550-f602-470e-98c8-45438d5d9421
result, different first party:
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
1ca74825-73c1-4b34-9150-4b02e25da6cf,
5f0ef772-189c-40cb-adc1-d3343c1a03cf,
e680b667-df62-4bd4-bee3-53e075a20820,
d10395b3-ceaa-47f5-8862-bff9941e893f,
f52e636a-8081-46eb-9b80-8109f65dc7ef
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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
00a66100-b08b-4582-ac8f-2711162571bf_http,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_http,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_http,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_http,
9ba430f3-d404-4644-b066-01ffe36f8844_http
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_http,
7b359b80-172d-4b65-a36b-19110a97abda_http,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_http,
b44eb135-e90d-4b39-b818-2480ccd896bb_http,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_http
result, different first party:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_http,
7b359b80-172d-4b65-a36b-19110a97abda_http,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_http,
b44eb135-e90d-4b39-b818-2480ccd896bb_http,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
b57dc506-f666-4d1d-83bf-2f829f712876_http,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_http,
2cac2b62-69f4-44a0-bd9a-784799f06d82_http,
d4e07dff-5634-49ee-b3d8-f536d818bdda_http,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_http
result, different first party:
b57dc506-f666-4d1d-83bf-2f829f712876_http,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_http,
2cac2b62-69f4-44a0-bd9a-784799f06d82_http,
d4e07dff-5634-49ee-b3d8-f536d818bdda_http,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
1868454d-7cab-4b01-8172-fbb35b6143ae_http,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_http,
608a9f7b-7319-4988-a570-f6e40eb68ba1_http,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_http,
1729dba0-c4bd-4d95-a3c2-72bce290a745_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
37e95148-efb7-444f-9680-3809e549df1c_http,
55c92202-a724-4edc-8d72-7e4cf04dc072_http,
e0cfce26-083f-4991-9046-203e6b3c07d2_http,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa_http,
b06dce37-0ff0-4b8f-b244-b6de93efe489_http
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
bfc84937-a069-433d-813c-05bd8677e0c9_http,
8f524b58-06a3-48c0-ac49-c55b24645ca9_http,
869abb3d-901f-4104-9b9d-7828d40b8f6f_http,
4b1b9d11-831b-47fe-9d24-ff1bbfba4ec5_http,
13387be8-e9da-4c7e-8786-98573ed549d0_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_http,
38031c54-5a1f-426c-8d44-6558cafadad7_http,
eba486b2-5385-4f49-a1d3-17e8de0f549c_http,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_http,
647bde12-d3c3-4c08-a540-be4d27777977_http
result, different first party:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_http,
38031c54-5a1f-426c-8d44-6558cafadad7_http,
eba486b2-5385-4f49-a1d3-17e8de0f549c_http,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_http,
647bde12-d3c3-4c08-a540-be4d27777977_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
46d67fff-34f6-41b0-a602-055fc81add88_http,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3_http,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9_http,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded_http,
c2c85548-704b-4c5d-9307-e2c68d489d94_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party: bc66f7d3-0262-4b48-9c0e-53bdadf8bbba_http
result, different first party: null
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
f050658f-2ebb-4ff5-89e4-0e4fd539feec_http,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4_http,
dd6f416b-87e9-46cf-a282-5dc2d81b6141_http,
880be7bc-321d-4ecd-aee6-43915c366159_http,
a4dcb550-f602-470e-98c8-45438d5d9421_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
1ca74825-73c1-4b34-9150-4b02e25da6cf_http,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_http,
e680b667-df62-4bd4-bee3-53e075a20820_http,
d10395b3-ceaa-47f5-8862-bff9941e893f_http,
f52e636a-8081-46eb-9b80-8109f65dc7ef_http
result, different first party:
1ca74825-73c1-4b34-9150-4b02e25da6cf_http,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_http,
e680b667-df62-4bd4-bee3-53e075a20820_http,
d10395b3-ceaa-47f5-8862-bff9941e893f_http,
f52e636a-8081-46eb-9b80-8109f65dc7ef_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
cookie (JS)
The cookie, first introduced by Netscape in 1994, is a small amount of data stored by your browser on a website's behalf. It has legitimate uses, but it is also the classic cross-site tracking mechanism, and today still the most popular method of tracking users across websites. Browsers can stop cookies from being used for cross-site tracking by either blocking or partitioning them. |
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
00a66100-b08b-4582-ac8f-2711162571bf_js,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_js,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_js,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_js,
9ba430f3-d404-4644-b066-01ffe36f8844_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_js,
7b359b80-172d-4b65-a36b-19110a97abda_js,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_js,
b44eb135-e90d-4b39-b818-2480ccd896bb_js,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_js
result, different first party:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_js,
7b359b80-172d-4b65-a36b-19110a97abda_js,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_js,
b44eb135-e90d-4b39-b818-2480ccd896bb_js,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
b57dc506-f666-4d1d-83bf-2f829f712876_js,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_js,
2cac2b62-69f4-44a0-bd9a-784799f06d82_js,
d4e07dff-5634-49ee-b3d8-f536d818bdda_js,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_js
result, different first party:
b57dc506-f666-4d1d-83bf-2f829f712876_js,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_js,
2cac2b62-69f4-44a0-bd9a-784799f06d82_js,
d4e07dff-5634-49ee-b3d8-f536d818bdda_js,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
1868454d-7cab-4b01-8172-fbb35b6143ae_js,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_js,
608a9f7b-7319-4988-a570-f6e40eb68ba1_js,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_js,
1729dba0-c4bd-4d95-a3c2-72bce290a745_js
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
37e95148-efb7-444f-9680-3809e549df1c_js,
55c92202-a724-4edc-8d72-7e4cf04dc072_js,
e0cfce26-083f-4991-9046-203e6b3c07d2_js,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa_js,
b06dce37-0ff0-4b8f-b244-b6de93efe489_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
bfc84937-a069-433d-813c-05bd8677e0c9_js,
8f524b58-06a3-48c0-ac49-c55b24645ca9_js,
869abb3d-901f-4104-9b9d-7828d40b8f6f_js,
4b1b9d11-831b-47fe-9d24-ff1bbfba4ec5_js,
13387be8-e9da-4c7e-8786-98573ed549d0_js
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_js,
38031c54-5a1f-426c-8d44-6558cafadad7_js,
eba486b2-5385-4f49-a1d3-17e8de0f549c_js,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_js,
647bde12-d3c3-4c08-a540-be4d27777977_js
result, different first party:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_js,
38031c54-5a1f-426c-8d44-6558cafadad7_js,
eba486b2-5385-4f49-a1d3-17e8de0f549c_js,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_js,
647bde12-d3c3-4c08-a540-be4d27777977_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
46d67fff-34f6-41b0-a602-055fc81add88_js,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3_js,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9_js,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded_js,
c2c85548-704b-4c5d-9307-e2c68d489d94_js
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party: bc66f7d3-0262-4b48-9c0e-53bdadf8bbba_js
result, different first party: null
unsupported: false
passed: true
test failed: false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
f050658f-2ebb-4ff5-89e4-0e4fd539feec_js,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4_js,
dd6f416b-87e9-46cf-a282-5dc2d81b6141_js,
880be7bc-321d-4ecd-aee6-43915c366159_js,
a4dcb550-f602-470e-98c8-45438d5d9421_js
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
1ca74825-73c1-4b34-9150-4b02e25da6cf_js,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_js,
e680b667-df62-4bd4-bee3-53e075a20820_js,
d10395b3-ceaa-47f5-8862-bff9941e893f_js,
f52e636a-8081-46eb-9b80-8109f65dc7ef_js
result, different first party:
1ca74825-73c1-4b34-9150-4b02e25da6cf_js,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_js,
e680b667-df62-4bd4-bee3-53e075a20820_js,
d10395b3-ceaa-47f5-8862-bff9941e893f_js,
f52e636a-8081-46eb-9b80-8109f65dc7ef_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:
00a66100-b08b-4582-ac8f-2711162571bf,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e,
16415681-791c-4ee7-a2d0-0e0eb95c23bd,
9ba430f3-d404-4644-b066-01ffe36f8844
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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa,
7b359b80-172d-4b65-a36b-19110a97abda,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d,
b44eb135-e90d-4b39-b818-2480ccd896bb,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d
result, different first party:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa,
7b359b80-172d-4b65-a36b-19110a97abda,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d,
b44eb135-e90d-4b39-b818-2480ccd896bb,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d
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:
b57dc506-f666-4d1d-83bf-2f829f712876,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b,
2cac2b62-69f4-44a0-bd9a-784799f06d82,
d4e07dff-5634-49ee-b3d8-f536d818bdda,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e
result, different first party:
b57dc506-f666-4d1d-83bf-2f829f712876,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b,
2cac2b62-69f4-44a0-bd9a-784799f06d82,
d4e07dff-5634-49ee-b3d8-f536d818bdda,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e
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:
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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9,
38031c54-5a1f-426c-8d44-6558cafadad7,
eba486b2-5385-4f49-a1d3-17e8de0f549c,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9,
647bde12-d3c3-4c08-a540-be4d27777977
result, different first party:
0c5093fe-ab91-435a-9298-f89bd9ce68a9,
38031c54-5a1f-426c-8d44-6558cafadad7,
eba486b2-5385-4f49-a1d3-17e8de0f549c,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9,
647bde12-d3c3-4c08-a540-be4d27777977
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
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:
f050658f-2ebb-4ff5-89e4-0e4fd539feec,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4,
dd6f416b-87e9-46cf-a282-5dc2d81b6141,
880be7bc-321d-4ecd-aee6-43915c366159,
a4dcb550-f602-470e-98c8-45438d5d9421
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:
1ca74825-73c1-4b34-9150-4b02e25da6cf,
5f0ef772-189c-40cb-adc1-d3343c1a03cf,
e680b667-df62-4bd4-bee3-53e075a20820,
d10395b3-ceaa-47f5-8862-bff9941e893f,
f52e636a-8081-46eb-9b80-8109f65dc7ef
result, different first party:
1ca74825-73c1-4b34-9150-4b02e25da6cf,
5f0ef772-189c-40cb-adc1-d3343c1a03cf,
e680b667-df62-4bd4-bee3-53e075a20820,
d10395b3-ceaa-47f5-8862-bff9941e893f,
f52e636a-8081-46eb-9b80-8109f65dc7ef
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_5564650841953513,
fake_5375616224065829,
fake_3466117583118711,
fake_8029419640595972,
fake_042151280940771585
result, different first party:
fake_40294064701813337,
fake_6802589545167554,
fake_2786241464133421,
fake_2769100035075158,
fake_07888573422634781
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_9749897691211287,
fake_19801544121446013,
fake_6260477516713012,
fake_693830984086627,
fake_20118365122916448
result, different first party:
fake_871905448390933,
fake_34822300093215874,
fake_8195646420968927,
fake_5533423066307204,
fake_422000661933293
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_16892347714915323,
fake_4365236877974552,
fake_32437916527572397,
fake_9072754271806329,
fake_9186152977622526
result, different first party:
fake_8196263794922787,
fake_21260407963787586,
fake_9625016509196422,
fake_2437204507423063,
fake_954377730215378
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_03584122462117478,
fake_5594696160377692,
fake_2848611982539775,
fake_1412912243700628,
fake_9763625736682657
result, different first party:
fake_6328324741518472,
fake_5043756748170551,
fake_8836952889810512,
fake_9742560379984011,
fake_6057863051647145
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_7805009814454453,
fake_272018114110006,
fake_49667414705405055,
fake_013047345078030848,
fake_014799465448381177
result, different first party:
fake_8433742665258304,
fake_5610212727861215,
fake_3599200926496293,
fake_7110795273607264,
fake_06298835187477447
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_057311496817993746,
fake_09763569767459668,
fake_5429236528161088,
fake_8601298979023857,
fake_7868742082288032
result, different first party:
fake_14464771575030988,
fake_8602571838276489,
fake_32000989057077467,
fake_1399292097965228,
fake_7280275663410074
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_16932837314863813,
fake_17779252402829804,
fake_1484468113805426,
fake_9777938478941288,
fake_5946390624014979
result, different first party:
fake_3986680035094574,
fake_037910399251851024,
fake_2505105654639461,
fake_00012181653899046019,
fake_7529016543523745
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_9326797150776935,
fake_5325599037805782,
fake_387135496042446,
fake_30683639759367076,
fake_5609416188028558
result, different first party:
fake_32917261677347476,
fake_7162418619773583,
fake_4102108927494328,
fake_4633160465309454,
fake_5926470041096785
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_39754706075067325
result, different first party: fake_5238784047267471
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_9468760612670415,
fake_9925477827114384,
fake_3530294416698838,
fake_46390670995029715,
fake_8959578564236561
result, different first party:
fake_5768983552725959,
fake_15547332950011028,
fake_6341655288006647,
fake_8804537802147838,
fake_3066317870089692
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_6168147971537541,
fake_6729152118928234,
fake_45580330289642035,
fake_9495581112770282,
fake_4939351973959889
result, different first party:
fake_13962014429849567,
fake_059912593687477145,
fake_5240752922516134,
fake_333999285191908,
fake_30851299802667076
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, 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: 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, 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, 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
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, 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, 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, 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
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, 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:
00a66100-b08b-4582-ac8f-2711162571bf,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e,
16415681-791c-4ee7-a2d0-0e0eb95c23bd,
9ba430f3-d404-4644-b066-01ffe36f8844
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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa,
7b359b80-172d-4b65-a36b-19110a97abda,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d,
b44eb135-e90d-4b39-b818-2480ccd896bb,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d
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:
b57dc506-f666-4d1d-83bf-2f829f712876,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b,
2cac2b62-69f4-44a0-bd9a-784799f06d82,
d4e07dff-5634-49ee-b3d8-f536d818bdda,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e
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:
1868454d-7cab-4b01-8172-fbb35b6143ae,
24bf3689-1221-4323-9ac0-4fe6d00cd10f,
608a9f7b-7319-4988-a570-f6e40eb68ba1,
5e464ca5-0d33-4a73-8986-6d11f2a6446d,
1729dba0-c4bd-4d95-a3c2-72bce290a745
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:
37e95148-efb7-444f-9680-3809e549df1c,
55c92202-a724-4edc-8d72-7e4cf04dc072,
e0cfce26-083f-4991-9046-203e6b3c07d2,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa,
b06dce37-0ff0-4b8f-b244-b6de93efe489
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:
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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9,
38031c54-5a1f-426c-8d44-6558cafadad7,
eba486b2-5385-4f49-a1d3-17e8de0f549c,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9,
647bde12-d3c3-4c08-a540-be4d27777977
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
result, different first party: Error: Unsupported
unsupported: true
passed: undefined
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:
f050658f-2ebb-4ff5-89e4-0e4fd539feec,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4,
dd6f416b-87e9-46cf-a282-5dc2d81b6141,
880be7bc-321d-4ecd-aee6-43915c366159,
a4dcb550-f602-470e-98c8-45438d5d9421
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:
1ca74825-73c1-4b34-9150-4b02e25da6cf,
5f0ef772-189c-40cb-adc1-d3343c1a03cf,
e680b667-df62-4bd4-bee3-53e075a20820,
d10395b3-ceaa-47f5-8862-bff9941e893f,
f52e636a-8081-46eb-9b80-8109f65dc7ef
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
00a66100-b08b-4582-ac8f-2711162571bf,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e,
16415681-791c-4ee7-a2d0-0e0eb95c23bd,
9ba430f3-d404-4644-b066-01ffe36f8844
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa,
7b359b80-172d-4b65-a36b-19110a97abda,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d,
b44eb135-e90d-4b39-b818-2480ccd896bb,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
b57dc506-f666-4d1d-83bf-2f829f712876,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b,
2cac2b62-69f4-44a0-bd9a-784799f06d82,
d4e07dff-5634-49ee-b3d8-f536d818bdda,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${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:
1868454d-7cab-4b01-8172-fbb35b6143ae,
24bf3689-1221-4323-9ac0-4fe6d00cd10f,
608a9f7b-7319-4988-a570-f6e40eb68ba1,
5e464ca5-0d33-4a73-8986-6d11f2a6446d,
1729dba0-c4bd-4d95-a3c2-72bce290a745
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
37e95148-efb7-444f-9680-3809e549df1c,
55c92202-a724-4edc-8d72-7e4cf04dc072,
e0cfce26-083f-4991-9046-203e6b3c07d2,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa,
b06dce37-0ff0-4b8f-b244-b6de93efe489
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${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:
bfc84937-a069-433d-813c-05bd8677e0c9,
8f524b58-06a3-48c0-ac49-c55b24645ca9,
869abb3d-901f-4104-9b9d-7828d40b8f6f,
4b1b9d11-831b-47fe-9d24-ff1bbfba4ec5,
13387be8-e9da-4c7e-8786-98573ed549d0
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
0c5093fe-ab91-435a-9298-f89bd9ce68a9,
38031c54-5a1f-426c-8d44-6558cafadad7,
eba486b2-5385-4f49-a1d3-17e8de0f549c,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9,
647bde12-d3c3-4c08-a540-be4d27777977
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${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:
46d67fff-34f6-41b0-a602-055fc81add88,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded,
c2c85548-704b-4c5d-9307-e2c68d489d94
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party: bc66f7d3-0262-4b48-9c0e-53bdadf8bbba
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${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:
f050658f-2ebb-4ff5-89e4-0e4fd539feec,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4,
dd6f416b-87e9-46cf-a282-5dc2d81b6141,
880be7bc-321d-4ecd-aee6-43915c366159,
a4dcb550-f602-470e-98c8-45438d5d9421
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
1ca74825-73c1-4b34-9150-4b02e25da6cf,
5f0ef772-189c-40cb-adc1-d3343c1a03cf,
e680b667-df62-4bd4-bee3-53e075a20820,
d10395b3-ceaa-47f5-8862-bff9941e893f,
f52e636a-8081-46eb-9b80-8109f65dc7ef
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
H2 connection
HTTP/2 is a web connection protocol introduced in 2015. Some browsers re-use HTTP/2 connections across websites and can thus be used to track users. |
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${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:
00a66100-b08b-4582-ac8f-2711162571bf,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e,
16415681-791c-4ee7-a2d0-0e0eb95c23bd,
9ba430f3-d404-4644-b066-01ffe36f8844
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa,
7b359b80-172d-4b65-a36b-19110a97abda,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d,
b44eb135-e90d-4b39-b818-2480ccd896bb,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${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:
b57dc506-f666-4d1d-83bf-2f829f712876,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b,
2cac2b62-69f4-44a0-bd9a-784799f06d82,
d4e07dff-5634-49ee-b3d8-f536d818bdda,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
1868454d-7cab-4b01-8172-fbb35b6143ae,
24bf3689-1221-4323-9ac0-4fe6d00cd10f,
608a9f7b-7319-4988-a570-f6e40eb68ba1,
5e464ca5-0d33-4a73-8986-6d11f2a6446d,
1729dba0-c4bd-4d95-a3c2-72bce290a745
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${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:
37e95148-efb7-444f-9680-3809e549df1c,
55c92202-a724-4edc-8d72-7e4cf04dc072,
e0cfce26-083f-4991-9046-203e6b3c07d2,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa,
b06dce37-0ff0-4b8f-b244-b6de93efe489
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
bfc84937-a069-433d-813c-05bd8677e0c9,
8f524b58-06a3-48c0-ac49-c55b24645ca9,
869abb3d-901f-4104-9b9d-7828d40b8f6f,
4b1b9d11-831b-47fe-9d24-ff1bbfba4ec5,
13387be8-e9da-4c7e-8786-98573ed549d0
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9,
38031c54-5a1f-426c-8d44-6558cafadad7,
eba486b2-5385-4f49-a1d3-17e8de0f549c,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9,
647bde12-d3c3-4c08-a540-be4d27777977
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
46d67fff-34f6-41b0-a602-055fc81add88,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded,
c2c85548-704b-4c5d-9307-e2c68d489d94
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${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: bc66f7d3-0262-4b48-9c0e-53bdadf8bbba
result, different first party:
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
f050658f-2ebb-4ff5-89e4-0e4fd539feec,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4,
dd6f416b-87e9-46cf-a282-5dc2d81b6141,
880be7bc-321d-4ecd-aee6-43915c366159,
a4dcb550-f602-470e-98c8-45438d5d9421
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${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:
1ca74825-73c1-4b34-9150-4b02e25da6cf,
5f0ef772-189c-40cb-adc1-d3343c1a03cf,
e680b667-df62-4bd4-bee3-53e075a20820,
d10395b3-ceaa-47f5-8862-bff9941e893f,
f52e636a-8081-46eb-9b80-8109f65dc7ef
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:
0927acadd4964afbb0944de861efa88f,
fc98da8e384e51775fb3892b4df538f4,
7837e1114660c9bf3ed17ccba71bf72f,
8cd1f9b5c60232ef0ffd03c35863a6a3,
27092cab49c024b9397f6bb10392a984
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:
428ad61fcd5debb4e47fbec6934b9514,
ba8457ff59db72a492dcd8af164068e7,
,
b833e325cd4368471a9a94faa9427e32,
a069a2c3c94ee166a8b056f705ff1489
result, different first party: , , , ,
unsupported: false, false, true, false, false
passed: 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:
72d8869781a2459bfc7c4d2fca0329ac,
b55c470677309cc7c66df067b76dabd2,
f96610d9ec4a9b472265cc024a653d8f,
a657fc2cffbcd3a10f49305e9ee5d391,
e5579fdab39a4608360de7c546a0fc1e
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:
9941ccf267cc00432a7cb0eb8f4c55b2,
ff48d7f0d030010833d9bb5e397bc08b,
d26da02dbb05ee8aa9014a2368f0cfc7,
7e56a43bf2e42eb524192f3730c5b54c,
21b7c9bc61fbfa852c38aa2a2f19174a
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:
8573aebdb568d163f47cdccde33ac011,
bd6e4b90b0b2b0a7656ae080ce9e0679,
b8076c530bae7120cc75a2f85f50bb76,
f4a3ba16e1f215eb02144c56eb4d0264,
81e5d6c8c0ae6a192cbf9b135ec1d7fd
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:
e7806549730511da4073bd53729f02a8,
b6ddc9065a6f66bacfce7c2025761272,
25ecf9de2b127e13499c9a556956d43f,
a0e9a32193ca4e4769a019f46908a731,
7df3ec55cd290db0ac3c752b91b9d7bd
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:
9a4f1056ae8470cc21a695b1fca25808,
1f144ff51460dcceb493b3325c09bf14,
c58e218ca32a72b51f5ce0517ab62bad,
546a4a8fc79dc8442f90f2c110d29c9c,
64456d30514c19c798f1321cd92f53dd
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: , ee819cc0441fabbac7e2670aa4723db6, e1de93b21f8879f830067fde86edb218, d206f9138cf14f1595f80effaf9a80f6, 6fd7db20b3d6bc4a5d413ac17e5ebf83
result, different first party: , 5548b8229a2b0186c023d16750de1b28, 3661789686b6c961835496ec125f6ce3, b65590ec09c9b0def69ecf5ae01e7cb6, e595a300c111f6920d1231c7839eeb32
unsupported: true, false, false, false, false
passed: , 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
passed: undefined
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:
f07925eef024823eed0902e6a233b738,
0992664fe44db05dd13c510b42b338c0,
91e1d1077c270d873cd66c64ef77960e,
ca894a45c945bcabf7d2b76b29642a1e,
36a4b6b3dd0cb968c516747b6190a84f
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:
cf214db716147e315d9ec827c5af7481,
bec97d4656862c73e7229c4ade48e730,
231d4c402f7e54862494ba403395cf62,
888e6885a0cf0cc4084930505c08fafb,
8b77178d4d9ecb57e4251772b6d5ee5f
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, 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: 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: null result, different first party: HTTPS used by default; no HSTS cache issue expected unsupported: null passed: true test failed: 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, 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: 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: null result, different first party: HTTPS used by default; no HSTS cache issue expected unsupported: null passed: true test failed: 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, 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
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, 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, 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, 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
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, 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:
00a66100-b08b-4582-ac8f-2711162571bf,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e,
16415681-791c-4ee7-a2d0-0e0eb95c23bd,
9ba430f3-d404-4644-b066-01ffe36f8844
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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa,
7b359b80-172d-4b65-a36b-19110a97abda,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d,
b44eb135-e90d-4b39-b818-2480ccd896bb,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d
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:
b57dc506-f666-4d1d-83bf-2f829f712876,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b,
2cac2b62-69f4-44a0-bd9a-784799f06d82,
d4e07dff-5634-49ee-b3d8-f536d818bdda,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e
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:
1868454d-7cab-4b01-8172-fbb35b6143ae,
24bf3689-1221-4323-9ac0-4fe6d00cd10f,
608a9f7b-7319-4988-a570-f6e40eb68ba1,
5e464ca5-0d33-4a73-8986-6d11f2a6446d,
1729dba0-c4bd-4d95-a3c2-72bce290a745
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:
37e95148-efb7-444f-9680-3809e549df1c,
55c92202-a724-4edc-8d72-7e4cf04dc072,
e0cfce26-083f-4991-9046-203e6b3c07d2,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa,
b06dce37-0ff0-4b8f-b244-b6de93efe489
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:
bfc84937-a069-433d-813c-05bd8677e0c9,
8f524b58-06a3-48c0-ac49-c55b24645ca9,
869abb3d-901f-4104-9b9d-7828d40b8f6f,
4b1b9d11-831b-47fe-9d24-ff1bbfba4ec5,
13387be8-e9da-4c7e-8786-98573ed549d0
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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9,
38031c54-5a1f-426c-8d44-6558cafadad7,
eba486b2-5385-4f49-a1d3-17e8de0f549c,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9,
647bde12-d3c3-4c08-a540-be4d27777977
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:
46d67fff-34f6-41b0-a602-055fc81add88,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded,
c2c85548-704b-4c5d-9307-e2c68d489d94
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: bc66f7d3-0262-4b48-9c0e-53bdadf8bbba
result, different first party: Error: The operation is insecure.
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:
f050658f-2ebb-4ff5-89e4-0e4fd539feec,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4,
dd6f416b-87e9-46cf-a282-5dc2d81b6141,
880be7bc-321d-4ecd-aee6-43915c366159,
a4dcb550-f602-470e-98c8-45438d5d9421
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:
1ca74825-73c1-4b34-9150-4b02e25da6cf,
5f0ef772-189c-40cb-adc1-d3343c1a03cf,
e680b667-df62-4bd4-bee3-53e075a20820,
d10395b3-ceaa-47f5-8862-bff9941e893f,
f52e636a-8081-46eb-9b80-8109f65dc7ef
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:
00a66100-b08b-4582-ac8f-2711162571bf,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e,
16415681-791c-4ee7-a2d0-0e0eb95c23bd,
9ba430f3-d404-4644-b066-01ffe36f8844
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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa,
7b359b80-172d-4b65-a36b-19110a97abda,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d,
b44eb135-e90d-4b39-b818-2480ccd896bb,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d
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:
b57dc506-f666-4d1d-83bf-2f829f712876,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b,
2cac2b62-69f4-44a0-bd9a-784799f06d82,
d4e07dff-5634-49ee-b3d8-f536d818bdda,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e
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:
1868454d-7cab-4b01-8172-fbb35b6143ae,
24bf3689-1221-4323-9ac0-4fe6d00cd10f,
608a9f7b-7319-4988-a570-f6e40eb68ba1,
5e464ca5-0d33-4a73-8986-6d11f2a6446d,
1729dba0-c4bd-4d95-a3c2-72bce290a745
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:
37e95148-efb7-444f-9680-3809e549df1c,
55c92202-a724-4edc-8d72-7e4cf04dc072,
e0cfce26-083f-4991-9046-203e6b3c07d2,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa,
b06dce37-0ff0-4b8f-b244-b6de93efe489
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:
bfc84937-a069-433d-813c-05bd8677e0c9,
8f524b58-06a3-48c0-ac49-c55b24645ca9,
869abb3d-901f-4104-9b9d-7828d40b8f6f,
4b1b9d11-831b-47fe-9d24-ff1bbfba4ec5,
13387be8-e9da-4c7e-8786-98573ed549d0
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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9,
38031c54-5a1f-426c-8d44-6558cafadad7,
eba486b2-5385-4f49-a1d3-17e8de0f549c,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9,
647bde12-d3c3-4c08-a540-be4d27777977
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:
46d67fff-34f6-41b0-a602-055fc81add88,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded,
c2c85548-704b-4c5d-9307-e2c68d489d94
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: bc66f7d3-0262-4b48-9c0e-53bdadf8bbba
result, different first party: Error: The operation is insecure.
unsupported: false
passed: true
test failed: false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party:
f050658f-2ebb-4ff5-89e4-0e4fd539feec,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4,
dd6f416b-87e9-46cf-a282-5dc2d81b6141,
880be7bc-321d-4ecd-aee6-43915c366159,
a4dcb550-f602-470e-98c8-45438d5d9421
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:
1ca74825-73c1-4b34-9150-4b02e25da6cf,
5f0ef772-189c-40cb-adc1-d3343c1a03cf,
e680b667-df62-4bd4-bee3-53e075a20820,
d10395b3-ceaa-47f5-8862-bff9941e893f,
f52e636a-8081-46eb-9b80-8109f65dc7ef
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:
00a66100-b08b-4582-ac8f-2711162571bf,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e,
16415681-791c-4ee7-a2d0-0e0eb95c23bd,
9ba430f3-d404-4644-b066-01ffe36f8844
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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa,
7b359b80-172d-4b65-a36b-19110a97abda,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d,
b44eb135-e90d-4b39-b818-2480ccd896bb,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d
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:
b57dc506-f666-4d1d-83bf-2f829f712876,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b,
2cac2b62-69f4-44a0-bd9a-784799f06d82,
d4e07dff-5634-49ee-b3d8-f536d818bdda,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e
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:
1868454d-7cab-4b01-8172-fbb35b6143ae,
24bf3689-1221-4323-9ac0-4fe6d00cd10f,
608a9f7b-7319-4988-a570-f6e40eb68ba1,
5e464ca5-0d33-4a73-8986-6d11f2a6446d,
1729dba0-c4bd-4d95-a3c2-72bce290a745
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:
37e95148-efb7-444f-9680-3809e549df1c,
55c92202-a724-4edc-8d72-7e4cf04dc072,
e0cfce26-083f-4991-9046-203e6b3c07d2,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa,
b06dce37-0ff0-4b8f-b244-b6de93efe489
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:
bfc84937-a069-433d-813c-05bd8677e0c9,
8f524b58-06a3-48c0-ac49-c55b24645ca9,
869abb3d-901f-4104-9b9d-7828d40b8f6f,
4b1b9d11-831b-47fe-9d24-ff1bbfba4ec5,
13387be8-e9da-4c7e-8786-98573ed549d0
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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9,
38031c54-5a1f-426c-8d44-6558cafadad7,
eba486b2-5385-4f49-a1d3-17e8de0f549c,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9,
647bde12-d3c3-4c08-a540-be4d27777977
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:
46d67fff-34f6-41b0-a602-055fc81add88,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded,
c2c85548-704b-4c5d-9307-e2c68d489d94
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: bc66f7d3-0262-4b48-9c0e-53bdadf8bbba
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:
f050658f-2ebb-4ff5-89e4-0e4fd539feec,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4,
dd6f416b-87e9-46cf-a282-5dc2d81b6141,
880be7bc-321d-4ecd-aee6-43915c366159,
a4dcb550-f602-470e-98c8-45438d5d9421
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:
1ca74825-73c1-4b34-9150-4b02e25da6cf,
5f0ef772-189c-40cb-adc1-d3343c1a03cf,
e680b667-df62-4bd4-bee3-53e075a20820,
d10395b3-ceaa-47f5-8862-bff9941e893f,
f52e636a-8081-46eb-9b80-8109f65dc7ef
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, 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:
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
result, different first party: 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 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, 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, 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
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, 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, 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=${key}`);
}
read: async () => {
console.log("trying to register the serviceworker now...");
const registration = await Promise.race([
navigator.serviceWorker.register('serviceWorker.js'),
sleepMs(500)
]);
if (registration === undefined) {
// We timed out or otherwise failed.
throw new Error("ServiceWorker registration failed");
}
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: , , , ,
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: undefined
test failed: true, true, true, true, true
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${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: , , , ,
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=${key}`);
}
read: async () => {
console.log("trying to register the serviceworker now...");
const registration = await Promise.race([
navigator.serviceWorker.register('serviceWorker.js'),
sleepMs(500)
]);
if (registration === undefined) {
// We timed out or otherwise failed.
throw new Error("ServiceWorker registration failed");
}
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: Error: navigator.serviceWorker is undefined
result, different first party: Error: navigator.serviceWorker is undefined
unsupported: true
passed: undefined
test failed: false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${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:
00a66100-b08b-4582-ac8f-2711162571bf,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e,
16415681-791c-4ee7-a2d0-0e0eb95c23bd,
9ba430f3-d404-4644-b066-01ffe36f8844
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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa,
7b359b80-172d-4b65-a36b-19110a97abda,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d,
b44eb135-e90d-4b39-b818-2480ccd896bb,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d
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:
b57dc506-f666-4d1d-83bf-2f829f712876,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b,
2cac2b62-69f4-44a0-bd9a-784799f06d82,
d4e07dff-5634-49ee-b3d8-f536d818bdda,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e
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:
1868454d-7cab-4b01-8172-fbb35b6143ae,
24bf3689-1221-4323-9ac0-4fe6d00cd10f,
608a9f7b-7319-4988-a570-f6e40eb68ba1,
5e464ca5-0d33-4a73-8986-6d11f2a6446d,
1729dba0-c4bd-4d95-a3c2-72bce290a745
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:
37e95148-efb7-444f-9680-3809e549df1c,
55c92202-a724-4edc-8d72-7e4cf04dc072,
e0cfce26-083f-4991-9046-203e6b3c07d2,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa,
b06dce37-0ff0-4b8f-b244-b6de93efe489
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:
bfc84937-a069-433d-813c-05bd8677e0c9,
8f524b58-06a3-48c0-ac49-c55b24645ca9,
869abb3d-901f-4104-9b9d-7828d40b8f6f,
4b1b9d11-831b-47fe-9d24-ff1bbfba4ec5,
13387be8-e9da-4c7e-8786-98573ed549d0
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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9,
38031c54-5a1f-426c-8d44-6558cafadad7,
eba486b2-5385-4f49-a1d3-17e8de0f549c,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9,
647bde12-d3c3-4c08-a540-be4d27777977
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:
46d67fff-34f6-41b0-a602-055fc81add88,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded,
c2c85548-704b-4c5d-9307-e2c68d489d94
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: bc66f7d3-0262-4b48-9c0e-53bdadf8bbba
result, different first party: Error: The operation is insecure.
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:
f050658f-2ebb-4ff5-89e4-0e4fd539feec,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4,
dd6f416b-87e9-46cf-a282-5dc2d81b6141,
880be7bc-321d-4ecd-aee6-43915c366159,
a4dcb550-f602-470e-98c8-45438d5d9421
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:
1ca74825-73c1-4b34-9150-4b02e25da6cf,
5f0ef772-189c-40cb-adc1-d3343c1a03cf,
e680b667-df62-4bd4-bee3-53e075a20820,
d10395b3-ceaa-47f5-8862-bff9941e893f,
f52e636a-8081-46eb-9b80-8109f65dc7ef
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:
2e20398d417ecab2ae29d5f171e850dfb7facd02366749d21965bf911631973b,
8facdbd9fa90d6b833c6d1656649c882d9c90ea33674e83d6e115ec96bfd2c07,
2c22b01bd56e7d45404ba7bd7f96b46b9c2aba65fd1ab794aa27300ecf2b0c48,
f423d2998b7e060197779f8d66314b78ac5e4b102d14b288d51ca82d9902ddcb,
f737c7f37a44aa3944503fd546b34d2469e2c782eff7a5ce0903047c8c89c683
result, different first party:
be480fb76d84ca283038749eb2e963f517b76f459c46c59426c3c76e0bb35475,
a390f7d59a4e6024a85c189fff2a0cd3f58037dd6361e34a77da9ff45009cc38,
d79347a5e985ea49fffb19fc090b7657444931d2820e2770095aa11fb1ea1c70,
50b531ee30eae94e7200ef1daa9bf1c3a1533a8c2e0f87ab1cc21e457d7405bf,
6ceb908e3a8ea2b214c3368260a8063a5f5700922d2511994ee9ad42e55e726f
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:
93f30f6b53f7592ef822a89638998cda047d0eed0583872db51bba4af692be7d,
fb8a4db48c904f1d8b079119f01ab790cffdf75ff2b72cda38cba47a4f5028a3,
8dbf85fe65972e6a1d3bdc40ed669f8296a7e7a8103bb63da54a16c61fe8bbf9,
0ae93fab34282fdd0769a4607d6fd66f8a75d2afc339329b46cf609ba1e82505,
0fdd6836bfea933895e9dfcc68cae94500bc4bace1901d86bc4e48dd216189cb
result, different first party:
69b1f491684323af43fe1be9fed62886c5c0180d6d9638a3c75edcd8478604cb,
85feee8f636c5d83720d194bf1d8471971ec896d944c0b81dc614614ac7a1dc6,
9ff5f28d239d6390fdae82e1cba91ed75faf44867654358dabd7eec3f6b62eba,
b2c47d037ea5e19ea475a4b210d2237596bf470553dc1fc52a8f98816d28436f,
a5834ac58c407a926f16788afb2851297fcbbe9749fdae7e7d96676450c1ea04
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:
983f1f9e03082ed6ae2d7c75f10d6c9edc855f4fdcf5be9173b26c98d0b452e5,
a268c21c4cce4d9fd3c1b8eeb1dba0e1531a7230467a756be5587b7c23805f8c,
1e8e9001f6dd0ae0395e3f12948b55bf09c25d680bf8caa6f6fb7a9cf2db2652,
037c3641a8bc4bb97f590903ce85878d9d17fbde358830612a4228fa75fa6c50,
f6cf5064f005956d7fc9f7cb3841317d4afe29770ecf5584d0ae60950f90cc03
result, different first party:
4359a4a817ddb01d1b7ec18ec1490670f0ce36311814d4cabf048fbae57b094d,
15c7081fa710caf20cff11f0c4a67df02ad7a77d81abd3cfe0e1bde59875131f,
ecf23da067316dc973edb5d764d11dd06e79be5aebfa86630720f18481e8275e,
bcd6e1f6555be86bd3f4e0f3b4bf7d47408a8b864f9a55fee584d9f047c76de3,
a7144224db5ed173dd5beed6f9e60fa74ed99ed3cbb13313d993978f0cadf2a7
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:
cba5ee576de0d8ca405030e66bef7f857cc20f17122b99e33c47a8f9f6cee1b3,
8d43c18e817dacd6a4c54a440c2b07800cab0e82f5e1bb2a7061039ded658767,
f8e50c33409d7f0f463c858e13c3702555b8d015d81bf87a0a5b9e390cdf3006,
9aa02877efb1941b1435fc2aa45b35f9fa6cfc5b476caf475c3a5964e6fe0b7e,
575920c0bd8bd68abfd4c174f7f4eded62bf96163e488ad64a12a8a5b06b462d
result, different first party:
c9fc1945a320136a3524b865b793beaa654bebdd90e4126241f9daf1fd2a92ae,
e88b7d062b4611d743e8113ddfe746b074d583e4ec5d0a2d1ffcee1aa3bf8934,
dd68f133d2c808d3d4acd2aa8832784e7401f55ce572b7c6b041319819c41e91,
b7a54f58c6cf1b846f1811d44dd03732ef054232898ffeffc4575bab7a626bbe,
d0819babf74ef595d25f8d5afdb19a5dab6690707c55c8f39d3daf1705deca5c
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:
45ede052753b1128f90da329a277ec12eaf574538389571ecf2499404b706b74,
eca4744baea5b4a931249cc023c56506d7bc8d048fede640a825da89c4476f08,
6a7c9873031fca3d735a2e2ae2cbb813c34d66088c0ed379bc3671950e2a0462,
a22137b73c9079e547fd5b2c0ecffbf207dcc1151193070750c7be5109d176bb,
94f22d93cb4db9d3dacbb122bc40a21c53531724ccd5317fbb479069818a41a9
result, different first party:
453d5124d8530c06d6f80bf7b757ecff03b00db985c206a48c7c5b8c7e4e1aa9,
4ead940e98c8361593074c792a951e9544d9b7b8c53162a1de06bd48e5c67fb9,
9e487eef1a45034e5665d856737e54404a2073498e03fc54e487f3fc32287536,
11dabd5df6faf1899445614081a0d4ed4dad858550842948a56ac08d97fb66e3,
2b66fd7bd8fe19c85f16fcc45b035dc8f05e3f65eeb3e1c6eb5eb200ff4aaa9a
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:
a9b5bdb44ff6f99419e37b9f4fc783e152100f5399ee1e1588a960c70aa7ee28,
447f2cfc3bf4f9fd90b55fa9157f00166e2892052383f006120aebc8787d8162,
4044e3cebd6fc11a42d361484a20782de77eacc6c47d6f587b488b9961007192,
3723e050f8307c60d166dd1ee8a76d3408126fa4f85956353930c4e1c28af96a,
31e181351324caebf7bbe09414dbf457812f2e8b4f73d98810f0e8535d1b9ffe
result, different first party:
bd8d28033a13a4b4c80131335a181be4dce13cf1244e42f767dd31794d3f4242,
5afe4741d290c6cc8af76290f3b04742e522f334887ba643c1c5f27e6dc51fd2,
73503c35fca3c34697c7157db3cad44204617c91db6a70b522c614ff64d36367,
53690ea7b1ec5a5ef4c316eb67893098c6874a3d98bdd6fb3b2ec5c121eace75,
07fe1b6705e58185b99bdf82793e82479d390d34444fe76467252bd5bea360de
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:
51bd4a94f0f207d2a7e9ee109242485c65fd85a8ec25febe0d56d6efd84ccca8,
4a91cef31b79d9b5f85d8860f0866df0e8d4d923d23c77f70068c3727b7c78c1,
6431d3e38fd1fb4f61258c2472779ffc4cf0705f819ec55c2eb6ed3250aff310,
53bd54ef7f7674e716b5f8159bc57e63cf1c2618b567f5236a05824bae6f935c,
8a0a969433bdc148256cb0f2f5ebb838e62cabf46952fa43f0489027462b4055
result, different first party:
5229216866b3242e9153dd99c0d5ffb98bf4228fec36918362120636d6c63bc6,
3e649960dd611ecf8ea7a4660df2f2d437c1acc6912eb5f0df6f7401a20d3bbe,
313a2d2086d49f67ae117fc16846c2fde6889385088db84b255da95f9613192c,
6b68d206fec25d4853c68887c15a30c5c298e1bc940869de69bd79186e7d1b46,
c8f377a61b21de7c6ff176cd178e4c87981583bf1bc302b0d515b2a20458abda
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:
cbb03409eca6cb7a918814d8648da574fcd1044d608609f702e8602852a3d9fb,
d878f3e0cefc21a27294db7b763fd65e7d4795ea29a8d88d54cd592db1f9b88a,
4e87f5a463baf322320dae7d3c6347cb715ef73cb056b60936319485a7483c09,
36eafbde7610633f88c93a0f139bcc464749c650f5f38ddc9968507607752bb1,
cc77c83c2e94e34c50449fa9b9c828796e3378b740c3b906971fed0d67d481cd
result, different first party:
d38b7aca9b98f54fa8d43047a246e696c5ae815bc80c316d1edea73df19dc78a,
1f5dab720f09588466d90444ab088fc4e84590a71fa66175ed1a50e4f7eac85c,
14f9da10dee4eedca07eb08df4465ebfab0db59e66566a8b1b25b8b0155ede58,
83466c800a36c607e915fa8a2f6a0fc1f7afef7798c57d0453e90c58072455b1,
d585ff257668c0c36c9ff1990a75b7e1883481a6ef50833d64311ae4ef1641e1
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: 1aec117164ab83f846b9de6d176216e6ae19ab99830f9e199b14321201035936
result, different first party: 8495e3b5bcb5260683d10fdf7638b5ed02c2e46b7bcff599144106bb73f27e86
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:
baa9c6a15c6c568673c9a7bb4593868cde848f6e53dbf420e3631a368280db51,
c0fcc9e454d367ea298241bb95ea54a57c1750de36ec401f148cd2e0a542e0d2,
61e32b80f69cf8ffcbb58d882de085bce32860c584fe207e8eb8797b280092ce,
7945643800822de783a632afbeff440a029db47ecc888e8d75ee16a5af4c0f7f,
2c5f5d7db7be6cd66427f1834dd89699252d6b8433c2aa756e3fc3889a566fa1
result, different first party:
38f3d539fb7957846338273b743e900067b054e10a60137094857b2918ab539a,
d8f491d6d639a92ada6529b56e92457b64e37e789bdab1a81cae40a9dc7e97d4,
26a2ddc9cede7186f62194fc4f061819772de39f086b9579654524905a3766d5,
f26f6acae7995e4e540750b89ce32e6b7bcf8f576f2e5a9e6d7a5ffe1fef9167,
01d566af1e0f48df32000d9ddc33367f3688f8463ab628930f93130f485cce4f
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:
092ca14a1522595c601cbca09da898f4f769516778035e0f402bb88860197810,
88f2ee5fdc9497eb26bc8762e4f8d6dea2e442cdd4514243c27985630e74cd5b,
368bbc3b1c9aaa4392bfc2cc9c7af4f12c06241d476508100a664bbba405eae5,
e9a51e88a44e9776b46a3a29e2ededd246ad1a959c2653c3487146d923e28ad2,
1f4a191cdd7d4f6c26c0002b86dbc3dbfad061b003ca089a6fb2cf5d2929ba9a
result, different first party:
ca4267906f950b275d9eb3003c461ff32ab697388f5add359ce0a80d3b0d574c,
a7047da5a7ca601161a5b8187feb18fc3f3bd6fb426952fa2aa213d29da7bb33,
48f62a17686645857439a7d71bb53d9836f997ed344b0df88330f5c8ef89dbef,
8da52c4824a9d444886747f8a96e8d16d0160482d0a2656db82fc458089478f0,
a9ebbaa353760b074743fbf13148df131d40af64c814154ad13137daa4428b3e
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, 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
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, 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/,
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/
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/,
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:
00a66100-b08b-4582-ac8f-2711162571bf,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e,
16415681-791c-4ee7-a2d0-0e0eb95c23bd,
9ba430f3-d404-4644-b066-01ffe36f8844
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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa,
7b359b80-172d-4b65-a36b-19110a97abda,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d,
b44eb135-e90d-4b39-b818-2480ccd896bb,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d
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:
b57dc506-f666-4d1d-83bf-2f829f712876,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b,
2cac2b62-69f4-44a0-bd9a-784799f06d82,
d4e07dff-5634-49ee-b3d8-f536d818bdda,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e
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:
1868454d-7cab-4b01-8172-fbb35b6143ae,
24bf3689-1221-4323-9ac0-4fe6d00cd10f,
608a9f7b-7319-4988-a570-f6e40eb68ba1,
5e464ca5-0d33-4a73-8986-6d11f2a6446d,
1729dba0-c4bd-4d95-a3c2-72bce290a745
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:
37e95148-efb7-444f-9680-3809e549df1c,
55c92202-a724-4edc-8d72-7e4cf04dc072,
e0cfce26-083f-4991-9046-203e6b3c07d2,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa,
b06dce37-0ff0-4b8f-b244-b6de93efe489
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:
bfc84937-a069-433d-813c-05bd8677e0c9,
8f524b58-06a3-48c0-ac49-c55b24645ca9,
869abb3d-901f-4104-9b9d-7828d40b8f6f,
4b1b9d11-831b-47fe-9d24-ff1bbfba4ec5,
13387be8-e9da-4c7e-8786-98573ed549d0
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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9,
38031c54-5a1f-426c-8d44-6558cafadad7,
eba486b2-5385-4f49-a1d3-17e8de0f549c,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9,
647bde12-d3c3-4c08-a540-be4d27777977
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:
46d67fff-34f6-41b0-a602-055fc81add88,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded,
c2c85548-704b-4c5d-9307-e2c68d489d94
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: bc66f7d3-0262-4b48-9c0e-53bdadf8bbba
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:
f050658f-2ebb-4ff5-89e4-0e4fd539feec,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4,
dd6f416b-87e9-46cf-a282-5dc2d81b6141,
880be7bc-321d-4ecd-aee6-43915c366159,
a4dcb550-f602-470e-98c8-45438d5d9421
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:
1ca74825-73c1-4b34-9150-4b02e25da6cf,
5f0ef772-189c-40cb-adc1-d3343c1a03cf,
e680b667-df62-4bd4-bee3-53e075a20820,
d10395b3-ceaa-47f5-8862-bff9941e893f,
f52e636a-8081-46eb-9b80-8109f65dc7ef
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_00a66100-b08b-4582-ac8f-2711162571bf, name_d5b9ea50-2506-4ea5-b56c-5da6d98892d2, name_15f3830d-7c89-4b2a-ae46-d0b5c4dd786e, name_16415681-791c-4ee7-a2d0-0e0eb95c23bd, name_9ba430f3-d404-4644-b066-01ffe36f8844 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_aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa, name_7b359b80-172d-4b65-a36b-19110a97abda, name_c0222719-f8a3-48d5-83d6-d2d051d5ed0d, name_b44eb135-e90d-4b39-b818-2480ccd896bb, name_d7b43745-fc20-4ab2-85fd-bb898ae7f41d result, different first party: name_aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa, name_7b359b80-172d-4b65-a36b-19110a97abda, name_c0222719-f8a3-48d5-83d6-d2d051d5ed0d, name_b44eb135-e90d-4b39-b818-2480ccd896bb, name_d7b43745-fc20-4ab2-85fd-bb898ae7f41d 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_b57dc506-f666-4d1d-83bf-2f829f712876, name_58ffb87e-dd1e-489a-81c8-7d9afde3e87b, name_2cac2b62-69f4-44a0-bd9a-784799f06d82, name_d4e07dff-5634-49ee-b3d8-f536d818bdda, name_7e51936d-9c06-46c4-97c3-6eadf0f43c4e result, different first party: name_b57dc506-f666-4d1d-83bf-2f829f712876, name_58ffb87e-dd1e-489a-81c8-7d9afde3e87b, name_2cac2b62-69f4-44a0-bd9a-784799f06d82, name_d4e07dff-5634-49ee-b3d8-f536d818bdda, name_7e51936d-9c06-46c4-97c3-6eadf0f43c4e 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_1868454d-7cab-4b01-8172-fbb35b6143ae, name_24bf3689-1221-4323-9ac0-4fe6d00cd10f, name_608a9f7b-7319-4988-a570-f6e40eb68ba1, name_5e464ca5-0d33-4a73-8986-6d11f2a6446d, name_1729dba0-c4bd-4d95-a3c2-72bce290a745 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_37e95148-efb7-444f-9680-3809e549df1c, name_55c92202-a724-4edc-8d72-7e4cf04dc072, name_e0cfce26-083f-4991-9046-203e6b3c07d2, name_ab33ead3-58db-47fb-8fc9-81455e8e1dfa, name_b06dce37-0ff0-4b8f-b244-b6de93efe489 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_bfc84937-a069-433d-813c-05bd8677e0c9, name_8f524b58-06a3-48c0-ac49-c55b24645ca9, name_869abb3d-901f-4104-9b9d-7828d40b8f6f, name_4b1b9d11-831b-47fe-9d24-ff1bbfba4ec5, name_13387be8-e9da-4c7e-8786-98573ed549d0 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_0c5093fe-ab91-435a-9298-f89bd9ce68a9, name_38031c54-5a1f-426c-8d44-6558cafadad7, name_eba486b2-5385-4f49-a1d3-17e8de0f549c, name_2c41a00d-b2ad-47ad-b882-27a9072e7fd9, name_647bde12-d3c3-4c08-a540-be4d27777977 result, different first party: name_0c5093fe-ab91-435a-9298-f89bd9ce68a9, name_38031c54-5a1f-426c-8d44-6558cafadad7, name_eba486b2-5385-4f49-a1d3-17e8de0f549c, name_2c41a00d-b2ad-47ad-b882-27a9072e7fd9, name_647bde12-d3c3-4c08-a540-be4d27777977 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_46d67fff-34f6-41b0-a602-055fc81add88, name_f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3, name_23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9, name_f5e0fdbf-5eff-47d7-bd23-5fda8fdacded, name_c2c85548-704b-4c5d-9307-e2c68d489d94 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_bc66f7d3-0262-4b48-9c0e-53bdadf8bbba 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_f050658f-2ebb-4ff5-89e4-0e4fd539feec, name_2aa77901-7f4d-438b-ad48-2ed7ce79c7e4, name_dd6f416b-87e9-46cf-a282-5dc2d81b6141, name_880be7bc-321d-4ecd-aee6-43915c366159, name_a4dcb550-f602-470e-98c8-45438d5d9421 result, different first party: name_f050658f-2ebb-4ff5-89e4-0e4fd539feec, name_2aa77901-7f4d-438b-ad48-2ed7ce79c7e4, name_dd6f416b-87e9-46cf-a282-5dc2d81b6141, name_880be7bc-321d-4ecd-aee6-43915c366159, name_a4dcb550-f602-470e-98c8-45438d5d9421 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_1ca74825-73c1-4b34-9150-4b02e25da6cf, name_5f0ef772-189c-40cb-adc1-d3343c1a03cf, name_e680b667-df62-4bd4-bee3-53e075a20820, name_d10395b3-ceaa-47f5-8862-bff9941e893f, name_f52e636a-8081-46eb-9b80-8109f65dc7ef result, different first party: name_1ca74825-73c1-4b34-9150-4b02e25da6cf, name_5f0ef772-189c-40cb-adc1-d3343c1a03cf, name_e680b667-df62-4bd4-bee3-53e075a20820, name_d10395b3-ceaa-47f5-8862-bff9941e893f, name_f52e636a-8081-46eb-9b80-8109f65dc7ef 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, 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: 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 result: 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, 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 |
upgraded: false, false, false, false, false passed: false, false, false, false, false |
upgraded: true passed: 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, 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 |
upgraded: false, false, false, false, false passed: false, false, false, false, false |
upgraded: true passed: 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, 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, 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 result: 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, 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: 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 result: 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, false, true |
SNI_status: encrypted passed: true, true, true, true, true |
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: 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 |
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, 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 |
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, 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 |
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, 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: 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, 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, 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
readSameFirstParty: 2a0b:f4c2:2::36
readDifferentFirstParty: 2001:67c:6ec:203:192:42:116:208
passed: true
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, 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, 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, false, false, false, false passed: false, false, false, false, false |
IsTorExit: false, false, false, false, false passed: false, false, false, false, false |
IsTorExit: true passed: 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').`, |
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|
Media query screen height
Height of the user's screen in pixels. |
expression: undefined desired expression: undefined actual value: 1297,1291,1291,1295,1292 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: 1440,1440,1440,1440,1440 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: 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 desired value: undefined passed: 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: 1205,1205,1200,1205,1201 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: 2560,2560,2560,2560,2560 desired value: undefined passed: false,false,false,false,false |
expression: undefined desired expression: undefined actual value: 1600,1600,1600,1600,1600 desired value: undefined passed: true,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 desired value: undefined passed: 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: 1297,1291,1291,1295,1292 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: 1040,1040,1040,1040,1040 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: 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 desired value: undefined passed: 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: 1297,1291,1291,1295,1292 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: 1440,1440,1440,1440,1440 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: 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 desired value: undefined passed: 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: 1205,1205,1200,1205,1201 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: 2560,2560,2560,2560,2560 desired value: undefined passed: false,false,false,false,false |
expression: screen.width desired expression: undefined actual value: 1600,1600,1600,1600,1600 desired value: undefined passed: true,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 desired value: undefined passed: 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: 1,6,6,7,6 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: 4,4,4,4,4 desired value: undefined passed: true,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: 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 desired value: undefined passed: 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: 5,1,6,7,1 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: 25,25,25,25,25 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: 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 desired value: undefined passed: 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,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: true,true,true,true,true |
expression: undefined desired expression: undefined actual value: undefined desired value: undefined passed: 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: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
__hssc
HubSpot tracking parameter |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
__hstc
HubSpot tracking parameter |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
__s
Drip.com email address tracking parameter |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
_hsenc
HubSpot tracking parameter |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
_openstat
Yandex tracking parameter |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
dclid
DoubleClick Click ID (Google) |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
fbclid
Facebook Click Identifier |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
gclid
Google Click Identifier |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
hsCtaTracking
HubSpot tracking parameter |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
mc_eid
Mailchimp Email ID (email recipient's address) |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
mkt_tok
Adobe Marketo tracking parameter |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
ml_subscriber
MailerLite email tracking |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
ml_subscriber_hash
MailerLite email tracking |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
msclkid
Microsoft Click ID |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
oly_anon_id
Omeda marketing 'anonymous' customer id |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
oly_enc_id
Omeda marketing 'known' customer id |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
rb_clickid
Unknown high-entropy tracking parameter |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
s_cid
Adobe Site Catalyst tracking parameter |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
vero_conv
Vero tracking parameter |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
vero_id
Vero tracking parameter |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
wickedid
Wicked Reports e-commerce tracking |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
|
yclid
Yandex Click ID |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true, true, true, true, true |
passed: true, true, true, true, true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 passed: false, false, false, false, false |
passed: true |
value: 8338591859372562 passed: false, false, false, false, false |
value: 8338591859372562 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.` |
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|
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, false, false, false, false |
url: https://munchkin.marketo.net/munchkin.js passed: true, 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 |
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, false, false, false, false |
url: https://dpm.demdex.net/ibs passed: true, 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 |
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, false, false, false, false |
url: https://s.amazon-adsystem.com/dcm passed: true, 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 |
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, false, false, false, false |
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: 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: 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, false, false, false, false |
url: https://bat.bing.com/bat.js passed: true, 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 |
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, false, false, false, false |
url: https://static.chartbeat.com/js/chartbeat.js passed: true, 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 |
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, false, false, false, false |
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: 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: 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, false, false, false, false |
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: 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: 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, false, false, false, false |
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: 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: 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, false, false, false, false |
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: 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: 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, false, false, false, false |
url: https://google-analytics.com/urchin.js passed: true, 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 |
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, false, false, false, false |
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: 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: 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, false, false, false, false |
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: 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: 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, false, false, false, false |
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: 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: 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, false, false, false, false |
url: https://pixel.quantserve.com/pixel passed: true, 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 |
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, false, false, false, false |
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: 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: 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, false, false, false, false |
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: 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: 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, false, false, false, false |
url: https://t.co/i/adsct passed: true, 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 |
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, false, false, false, false |
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: 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: 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, 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: 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, 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 |
|
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, 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: 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, 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 |
|
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, 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: 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, 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 |
|
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, 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: false, false, false, false, false url: https://ib.adnxs.com/px?id=178248&t=1 cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://ib.adnxs.com/px?id=178248&t=1 cookieFound: false, false, false, false, false |
passed: true url: https://ib.adnxs.com/px?id=178248&t=1 cookieFound: false |
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 |
|
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: false, false, false, false, false url: https://bat.bing.com/bat.js cookieFound: true, true, true, true, true |
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: false, false, false, false, false url: https://bat.bing.com/bat.js cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://bat.bing.com/bat.js cookieFound: false, false, false, false, false |
passed: true url: https://bat.bing.com/bat.js cookieFound: false |
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 |
|
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: false, false, false, false, false url: https://static.chartbeat.com/js/chartbeat.js cookieFound: true, true, true, true, true |
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: false, false, false, false, false url: https://static.chartbeat.com/js/chartbeat.js cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://static.chartbeat.com/js/chartbeat.js cookieFound: false, false, false, false, false |
passed: true url: https://static.chartbeat.com/js/chartbeat.js cookieFound: false |
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 |
|
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, 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: 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, 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 |
|
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, 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: 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, 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 |
|
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, 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: 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, 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 |
|
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, 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: 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, 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 |
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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, 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: false, false, false, false, false url: https://google-analytics.com/urchin.js cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://google-analytics.com/urchin.js cookieFound: false, false, false, false, false |
passed: true url: https://google-analytics.com/urchin.js cookieFound: false |
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 |
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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, 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: false, false, false, false, false url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL cookieFound: false, false, false, false, false |
passed: true url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL cookieFound: false |
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 |
|
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, 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: 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, 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 |
|
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: false, false, false, false, false url: https://js-agent.newrelic.com/nr-1212.min.js cookieFound: true, true, true, true, true |
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: false, false, false, false, false url: https://js-agent.newrelic.com/nr-1212.min.js cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://js-agent.newrelic.com/nr-1212.min.js cookieFound: false, false, false, false, false |
passed: true url: https://js-agent.newrelic.com/nr-1212.min.js cookieFound: false |
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 |
|
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, 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: 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, 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 |
|
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: false, false, false, false, false url: https://sb.scorecardresearch.com/internal-c2/default/cs.js cookieFound: true, true, true, true, true |
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: false, false, false, false, false url: https://sb.scorecardresearch.com/internal-c2/default/cs.js cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://sb.scorecardresearch.com/internal-c2/default/cs.js cookieFound: false, false, false, false, false |
passed: true url: https://sb.scorecardresearch.com/internal-c2/default/cs.js cookieFound: false |
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 |
|
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, 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: 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, 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 |
|
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, 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: false, false, false, false, false url: https://t.co/i/adsct cookieFound: true, true, true, true, true |
passed: true, true, true, true, true url: https://t.co/i/adsct cookieFound: false, false, false, false, false |
passed: true url: https://t.co/i/adsct cookieFound: false |
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 |
|
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, 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: 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, 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 |
|
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, h2, h3, h3
result, different session: h3, h3, h2, h3, h3
unsupported: false, false, true, false, false
passed: 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, 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: 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, h3, h2, h3, h2
result, different session: h3, h2, h3, h2, h3
unsupported: true, false, true, false, true
passed: , 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
result, different session: h2
unsupported: true
passed: undefined
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, 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:
00a66100-b08b-4582-ac8f-2711162571bf_1p,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_1p,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_1p,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_1p,
9ba430f3-d404-4644-b066-01ffe36f8844_1p
result, different session:
00a66100-b08b-4582-ac8f-2711162571bf_1p,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_1p,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_1p,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_1p,
9ba430f3-d404-4644-b066-01ffe36f8844_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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_1p,
7b359b80-172d-4b65-a36b-19110a97abda_1p,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_1p,
b44eb135-e90d-4b39-b818-2480ccd896bb_1p,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_1p
result, different session:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_1p,
7b359b80-172d-4b65-a36b-19110a97abda_1p,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_1p,
b44eb135-e90d-4b39-b818-2480ccd896bb_1p,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
b57dc506-f666-4d1d-83bf-2f829f712876_1p,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_1p,
2cac2b62-69f4-44a0-bd9a-784799f06d82_1p,
d4e07dff-5634-49ee-b3d8-f536d818bdda_1p,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_1p
result, different session:
b57dc506-f666-4d1d-83bf-2f829f712876_1p,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_1p,
2cac2b62-69f4-44a0-bd9a-784799f06d82_1p,
d4e07dff-5634-49ee-b3d8-f536d818bdda_1p,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
1868454d-7cab-4b01-8172-fbb35b6143ae_1p,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_1p,
608a9f7b-7319-4988-a570-f6e40eb68ba1_1p,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_1p,
1729dba0-c4bd-4d95-a3c2-72bce290a745_1p
result, different session:
1868454d-7cab-4b01-8172-fbb35b6143ae_1p,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_1p,
608a9f7b-7319-4988-a570-f6e40eb68ba1_1p,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_1p,
1729dba0-c4bd-4d95-a3c2-72bce290a745_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
37e95148-efb7-444f-9680-3809e549df1c_1p,
55c92202-a724-4edc-8d72-7e4cf04dc072_1p,
e0cfce26-083f-4991-9046-203e6b3c07d2_1p,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa_1p,
b06dce37-0ff0-4b8f-b244-b6de93efe489_1p
result, different session:
Error: cacheKeys[0] is undefined,
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, 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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
result, different session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_1p,
38031c54-5a1f-426c-8d44-6558cafadad7_1p,
eba486b2-5385-4f49-a1d3-17e8de0f549c_1p,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_1p,
647bde12-d3c3-4c08-a540-be4d27777977_1p
result, different session:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_1p,
38031c54-5a1f-426c-8d44-6558cafadad7_1p,
eba486b2-5385-4f49-a1d3-17e8de0f549c_1p,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_1p,
647bde12-d3c3-4c08-a540-be4d27777977_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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
46d67fff-34f6-41b0-a602-055fc81add88_1p,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3_1p,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9_1p,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded_1p,
c2c85548-704b-4c5d-9307-e2c68d489d94_1p
result, different session:
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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 session: Error: The operation is insecure.
result, different session: Error: The operation is insecure.
unsupported: true
passed: undefined
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
f050658f-2ebb-4ff5-89e4-0e4fd539feec_1p,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4_1p,
dd6f416b-87e9-46cf-a282-5dc2d81b6141_1p,
880be7bc-321d-4ecd-aee6-43915c366159_1p,
a4dcb550-f602-470e-98c8-45438d5d9421_1p
result, different session:
f050658f-2ebb-4ff5-89e4-0e4fd539feec_1p,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4_1p,
dd6f416b-87e9-46cf-a282-5dc2d81b6141_1p,
880be7bc-321d-4ecd-aee6-43915c366159_1p,
a4dcb550-f602-470e-98c8-45438d5d9421_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
1ca74825-73c1-4b34-9150-4b02e25da6cf_1p,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_1p,
e680b667-df62-4bd4-bee3-53e075a20820_1p,
d10395b3-ceaa-47f5-8862-bff9941e893f_1p,
f52e636a-8081-46eb-9b80-8109f65dc7ef_1p
result, different session:
1ca74825-73c1-4b34-9150-4b02e25da6cf_1p,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_1p,
e680b667-df62-4bd4-bee3-53e075a20820_1p,
d10395b3-ceaa-47f5-8862-bff9941e893f_1p,
f52e636a-8081-46eb-9b80-8109f65dc7ef_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
00a66100-b08b-4582-ac8f-2711162571bf_1p_http,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_1p_http,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_1p_http,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_1p_http,
9ba430f3-d404-4644-b066-01ffe36f8844_1p_http
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_1p_http,
7b359b80-172d-4b65-a36b-19110a97abda_1p_http,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_1p_http,
b44eb135-e90d-4b39-b818-2480ccd896bb_1p_http,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
b57dc506-f666-4d1d-83bf-2f829f712876_1p_http,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_1p_http,
2cac2b62-69f4-44a0-bd9a-784799f06d82_1p_http,
d4e07dff-5634-49ee-b3d8-f536d818bdda_1p_http,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_1p_http
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
1868454d-7cab-4b01-8172-fbb35b6143ae_1p_http,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_1p_http,
608a9f7b-7319-4988-a570-f6e40eb68ba1_1p_http,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_1p_http,
1729dba0-c4bd-4d95-a3c2-72bce290a745_1p_http
result, different session:
1868454d-7cab-4b01-8172-fbb35b6143ae_1p_http,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_1p_http,
608a9f7b-7319-4988-a570-f6e40eb68ba1_1p_http,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_1p_http,
1729dba0-c4bd-4d95-a3c2-72bce290a745_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
37e95148-efb7-444f-9680-3809e549df1c_1p_http,
55c92202-a724-4edc-8d72-7e4cf04dc072_1p_http,
e0cfce26-083f-4991-9046-203e6b3c07d2_1p_http,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa_1p_http,
b06dce37-0ff0-4b8f-b244-b6de93efe489_1p_http
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
bfc84937-a069-433d-813c-05bd8677e0c9_1p_http,
8f524b58-06a3-48c0-ac49-c55b24645ca9_1p_http,
869abb3d-901f-4104-9b9d-7828d40b8f6f_1p_http,
4b1b9d11-831b-47fe-9d24-ff1bbfba4ec5_1p_http,
13387be8-e9da-4c7e-8786-98573ed549d0_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_1p_http,
38031c54-5a1f-426c-8d44-6558cafadad7_1p_http,
eba486b2-5385-4f49-a1d3-17e8de0f549c_1p_http,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_1p_http,
647bde12-d3c3-4c08-a540-be4d27777977_1p_http
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
46d67fff-34f6-41b0-a602-055fc81add88_1p_http,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3_1p_http,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9_1p_http,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded_1p_http,
c2c85548-704b-4c5d-9307-e2c68d489d94_1p_http
result, different session:
46d67fff-34f6-41b0-a602-055fc81add88_1p_http,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3_1p_http,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9_1p_http,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded_1p_http,
c2c85548-704b-4c5d-9307-e2c68d489d94_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session: bc66f7d3-0262-4b48-9c0e-53bdadf8bbba_1p_http
result, different session: null
unsupported: false
passed: true
test failed: false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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 session:
f050658f-2ebb-4ff5-89e4-0e4fd539feec_1p_http,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4_1p_http,
dd6f416b-87e9-46cf-a282-5dc2d81b6141_1p_http,
880be7bc-321d-4ecd-aee6-43915c366159_1p_http,
a4dcb550-f602-470e-98c8-45438d5d9421_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
1ca74825-73c1-4b34-9150-4b02e25da6cf_1p_http,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_1p_http,
e680b667-df62-4bd4-bee3-53e075a20820_1p_http,
d10395b3-ceaa-47f5-8862-bff9941e893f_1p_http,
f52e636a-8081-46eb-9b80-8109f65dc7ef_1p_http
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
cookie (JS)
The cookie, first introduced by Netscape in 1994, is a small amount of data stored by your browser on a website's behalf. It has legitimate uses, but it is also the classic cross-site tracking mechanism, and today still the most popular method of tracking users across websites. Browsers can stop cookies from being used for cross-site tracking by either blocking or partitioning them. |
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
00a66100-b08b-4582-ac8f-2711162571bf_1p_js,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_1p_js,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_1p_js,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_1p_js,
9ba430f3-d404-4644-b066-01ffe36f8844_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_1p_js,
7b359b80-172d-4b65-a36b-19110a97abda_1p_js,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_1p_js,
b44eb135-e90d-4b39-b818-2480ccd896bb_1p_js,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_1p_js
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
b57dc506-f666-4d1d-83bf-2f829f712876_1p_js,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_1p_js,
2cac2b62-69f4-44a0-bd9a-784799f06d82_1p_js,
d4e07dff-5634-49ee-b3d8-f536d818bdda_1p_js,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
1868454d-7cab-4b01-8172-fbb35b6143ae_1p_js,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_1p_js,
608a9f7b-7319-4988-a570-f6e40eb68ba1_1p_js,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_1p_js,
1729dba0-c4bd-4d95-a3c2-72bce290a745_1p_js
result, different session:
1868454d-7cab-4b01-8172-fbb35b6143ae_1p_js,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_1p_js,
608a9f7b-7319-4988-a570-f6e40eb68ba1_1p_js,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_1p_js,
1729dba0-c4bd-4d95-a3c2-72bce290a745_1p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
37e95148-efb7-444f-9680-3809e549df1c_1p_js,
55c92202-a724-4edc-8d72-7e4cf04dc072_1p_js,
e0cfce26-083f-4991-9046-203e6b3c07d2_1p_js,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa_1p_js,
b06dce37-0ff0-4b8f-b244-b6de93efe489_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
bfc84937-a069-433d-813c-05bd8677e0c9_1p_js,
8f524b58-06a3-48c0-ac49-c55b24645ca9_1p_js,
869abb3d-901f-4104-9b9d-7828d40b8f6f_1p_js,
4b1b9d11-831b-47fe-9d24-ff1bbfba4ec5_1p_js,
13387be8-e9da-4c7e-8786-98573ed549d0_1p_js
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_1p_js,
38031c54-5a1f-426c-8d44-6558cafadad7_1p_js,
eba486b2-5385-4f49-a1d3-17e8de0f549c_1p_js,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_1p_js,
647bde12-d3c3-4c08-a540-be4d27777977_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
46d67fff-34f6-41b0-a602-055fc81add88_1p_js,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3_1p_js,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9_1p_js,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded_1p_js,
c2c85548-704b-4c5d-9307-e2c68d489d94_1p_js
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session: bc66f7d3-0262-4b48-9c0e-53bdadf8bbba_1p_js
result, different session: null
unsupported: false
passed: true
test failed: false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
f050658f-2ebb-4ff5-89e4-0e4fd539feec_1p_js,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4_1p_js,
dd6f416b-87e9-46cf-a282-5dc2d81b6141_1p_js,
880be7bc-321d-4ecd-aee6-43915c366159_1p_js,
a4dcb550-f602-470e-98c8-45438d5d9421_1p_js
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
1ca74825-73c1-4b34-9150-4b02e25da6cf_1p_js,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_1p_js,
e680b667-df62-4bd4-bee3-53e075a20820_1p_js,
d10395b3-ceaa-47f5-8862-bff9941e893f_1p_js,
f52e636a-8081-46eb-9b80-8109f65dc7ef_1p_js
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
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:
00a66100-b08b-4582-ac8f-2711162571bf_1p,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_1p,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_1p,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_1p,
9ba430f3-d404-4644-b066-01ffe36f8844_1p
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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_1p,
7b359b80-172d-4b65-a36b-19110a97abda_1p,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_1p,
b44eb135-e90d-4b39-b818-2480ccd896bb_1p,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_1p
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:
b57dc506-f666-4d1d-83bf-2f829f712876_1p,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_1p,
2cac2b62-69f4-44a0-bd9a-784799f06d82_1p,
d4e07dff-5634-49ee-b3d8-f536d818bdda_1p,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_1p
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:
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:
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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_1p,
38031c54-5a1f-426c-8d44-6558cafadad7_1p,
eba486b2-5385-4f49-a1d3-17e8de0f549c_1p,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_1p,
647bde12-d3c3-4c08-a540-be4d27777977_1p
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:
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
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:
f050658f-2ebb-4ff5-89e4-0e4fd539feec_1p,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4_1p,
dd6f416b-87e9-46cf-a282-5dc2d81b6141_1p,
880be7bc-321d-4ecd-aee6-43915c366159_1p,
a4dcb550-f602-470e-98c8-45438d5d9421_1p
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:
1ca74825-73c1-4b34-9150-4b02e25da6cf_1p,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_1p,
e680b667-df62-4bd4-bee3-53e075a20820_1p,
d10395b3-ceaa-47f5-8862-bff9941e893f_1p,
f52e636a-8081-46eb-9b80-8109f65dc7ef_1p
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
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_41761305512258207,
fake_9239135825520399,
fake_2921223082949591,
fake_13428302040903395,
fake_09793837210017742
result, different session:
fake_41761305512258207,
fake_9239135825520399,
fake_2921223082949591,
fake_13428302040903395,
fake_09793837210017742
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_0401727257328226,
fake_49959379137906335,
fake_26318263919704465,
fake_12317925993743106,
fake_67605186591158
result, different session:
fake_0401727257328226,
fake_49959379137906335,
fake_26318263919704465,
fake_12317925993743106,
fake_67605186591158
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_34255169051749124,
fake_5993064125817118,
fake_9084989321527555,
fake_048138286689223486,
fake_04330699218326295
result, different session:
fake_34255169051749124,
fake_5993064125817118,
fake_9084989321527555,
fake_048138286689223486,
fake_04330699218326295
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_00854491624322451,
fake_8109207480141616,
fake_21010445169003722,
fake_960060464239201,
fake_7445303749157393
result, different session:
fake_00854491624322451,
fake_8109207480141616,
fake_21010445169003722,
fake_960060464239201,
fake_7445303749157393
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_38432263482755746,
fake_6217305540405427,
fake_049944512635711424,
fake_6655314758429107,
fake_6922828596224002
result, different session:
fake_9592067290394326,
fake_1502446974670566,
fake_6902897264376961,
fake_5554987978586221,
fake_9740036631503224
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_8810759192246234,
fake_16321310209612827,
fake_7794392252575277,
fake_20186336406870442,
fake_2616536403547356
result, different session:
fake_8967072380265977,
fake_7646271684168604,
fake_40087654071534873,
fake_8403696881129081,
fake_3456678298483218
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_3920648044045987,
fake_6269475145844494,
fake_7830578897722149,
fake_3902744224039574,
fake_0652379955079534
result, different session:
fake_3920648044045987,
fake_6269475145844494,
fake_7830578897722149,
fake_3902744224039574,
fake_0652379955079534
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_0220090815649312,
fake_8750950688820971,
fake_011302436024997808,
fake_5882140713779072,
fake_4887449001955968
result, different session:
fake_0220090815649312,
fake_8750950688820971,
fake_011302436024997808,
fake_5882140713779072,
fake_4887449001955968
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_05335201213980745
result, different session: fake_4391125084389813
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 session:
fake_9224987053689158,
fake_19658990356260952,
fake_5521859837661958,
fake_6903461064239185,
fake_5829103315303035
result, different session:
fake_9224987053689158,
fake_19658990356260952,
fake_5521859837661958,
fake_6903461064239185,
fake_5829103315303035
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_5843235783870206,
fake_49056051520601174,
fake_042863150178374054,
fake_34463237869455154,
fake_5388254524757563
result, different session:
fake_5843235783870206,
fake_49056051520601174,
fake_042863150178374054,
fake_34463237869455154,
fake_5388254524757563
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, 1, 1, 2, 1
result, different session: 1, 1, 1, 2, 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: 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
result, different session: 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 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, 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: 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
result, different session: 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 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, 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: 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
result, different session: 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 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, 1, 1, 1, 2
result, different session: 1, 1, 1, 1, 2
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: 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
result, different session: 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 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, 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: 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
result, different session: 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 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:
00a66100-b08b-4582-ac8f-2711162571bf_1p,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_1p,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_1p,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_1p,
9ba430f3-d404-4644-b066-01ffe36f8844_1p
result, different session:
00a66100-b08b-4582-ac8f-2711162571bf_1p,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_1p,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_1p,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_1p,
9ba430f3-d404-4644-b066-01ffe36f8844_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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_1p,
7b359b80-172d-4b65-a36b-19110a97abda_1p,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_1p,
b44eb135-e90d-4b39-b818-2480ccd896bb_1p,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_1p
result, different session:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_1p,
7b359b80-172d-4b65-a36b-19110a97abda_1p,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_1p,
b44eb135-e90d-4b39-b818-2480ccd896bb_1p,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_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:
b57dc506-f666-4d1d-83bf-2f829f712876_1p,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_1p,
2cac2b62-69f4-44a0-bd9a-784799f06d82_1p,
d4e07dff-5634-49ee-b3d8-f536d818bdda_1p,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_1p
result, different session:
b57dc506-f666-4d1d-83bf-2f829f712876_1p,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_1p,
2cac2b62-69f4-44a0-bd9a-784799f06d82_1p,
d4e07dff-5634-49ee-b3d8-f536d818bdda_1p,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_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:
1868454d-7cab-4b01-8172-fbb35b6143ae_1p,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_1p,
608a9f7b-7319-4988-a570-f6e40eb68ba1_1p,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_1p,
1729dba0-c4bd-4d95-a3c2-72bce290a745_1p
result, different session:
1868454d-7cab-4b01-8172-fbb35b6143ae_1p,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_1p,
608a9f7b-7319-4988-a570-f6e40eb68ba1_1p,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_1p,
1729dba0-c4bd-4d95-a3c2-72bce290a745_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:
37e95148-efb7-444f-9680-3809e549df1c_1p,
55c92202-a724-4edc-8d72-7e4cf04dc072_1p,
e0cfce26-083f-4991-9046-203e6b3c07d2_1p,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa_1p,
b06dce37-0ff0-4b8f-b244-b6de93efe489_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:
bfc84937-a069-433d-813c-05bd8677e0c9_1p,
8f524b58-06a3-48c0-ac49-c55b24645ca9_1p,
869abb3d-901f-4104-9b9d-7828d40b8f6f_1p,
4b1b9d11-831b-47fe-9d24-ff1bbfba4ec5_1p,
13387be8-e9da-4c7e-8786-98573ed549d0_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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_1p,
38031c54-5a1f-426c-8d44-6558cafadad7_1p,
eba486b2-5385-4f49-a1d3-17e8de0f549c_1p,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_1p,
647bde12-d3c3-4c08-a540-be4d27777977_1p
result, different session:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_1p,
38031c54-5a1f-426c-8d44-6558cafadad7_1p,
eba486b2-5385-4f49-a1d3-17e8de0f549c_1p,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_1p,
647bde12-d3c3-4c08-a540-be4d27777977_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:
46d67fff-34f6-41b0-a602-055fc81add88_1p,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3_1p,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9_1p,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded_1p,
c2c85548-704b-4c5d-9307-e2c68d489d94_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: bc66f7d3-0262-4b48-9c0e-53bdadf8bbba_1p
result, different session: 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 session:
f050658f-2ebb-4ff5-89e4-0e4fd539feec_1p,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4_1p,
dd6f416b-87e9-46cf-a282-5dc2d81b6141_1p,
880be7bc-321d-4ecd-aee6-43915c366159_1p,
a4dcb550-f602-470e-98c8-45438d5d9421_1p
result, different session:
f050658f-2ebb-4ff5-89e4-0e4fd539feec_1p,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4_1p,
dd6f416b-87e9-46cf-a282-5dc2d81b6141_1p,
880be7bc-321d-4ecd-aee6-43915c366159_1p,
a4dcb550-f602-470e-98c8-45438d5d9421_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:
1ca74825-73c1-4b34-9150-4b02e25da6cf_1p,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_1p,
e680b667-df62-4bd4-bee3-53e075a20820_1p,
d10395b3-ceaa-47f5-8862-bff9941e893f_1p,
f52e636a-8081-46eb-9b80-8109f65dc7ef_1p
result, different session:
1ca74825-73c1-4b34-9150-4b02e25da6cf_1p,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_1p,
e680b667-df62-4bd4-bee3-53e075a20820_1p,
d10395b3-ceaa-47f5-8862-bff9941e893f_1p,
f52e636a-8081-46eb-9b80-8109f65dc7ef_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:
00a66100-b08b-4582-ac8f-2711162571bf_1p,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_1p,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_1p,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_1p,
9ba430f3-d404-4644-b066-01ffe36f8844_1p
result, different session:
00a66100-b08b-4582-ac8f-2711162571bf_1p,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_1p,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_1p,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_1p,
9ba430f3-d404-4644-b066-01ffe36f8844_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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_1p,
7b359b80-172d-4b65-a36b-19110a97abda_1p,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_1p,
b44eb135-e90d-4b39-b818-2480ccd896bb_1p,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_1p
result, different session:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_1p,
7b359b80-172d-4b65-a36b-19110a97abda_1p,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_1p,
b44eb135-e90d-4b39-b818-2480ccd896bb_1p,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_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:
b57dc506-f666-4d1d-83bf-2f829f712876_1p,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_1p,
2cac2b62-69f4-44a0-bd9a-784799f06d82_1p,
d4e07dff-5634-49ee-b3d8-f536d818bdda_1p,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_1p
result, different session:
b57dc506-f666-4d1d-83bf-2f829f712876_1p,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_1p,
2cac2b62-69f4-44a0-bd9a-784799f06d82_1p,
d4e07dff-5634-49ee-b3d8-f536d818bdda_1p,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_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:
1868454d-7cab-4b01-8172-fbb35b6143ae_1p,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_1p,
608a9f7b-7319-4988-a570-f6e40eb68ba1_1p,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_1p,
1729dba0-c4bd-4d95-a3c2-72bce290a745_1p
result, different session:
1868454d-7cab-4b01-8172-fbb35b6143ae_1p,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_1p,
608a9f7b-7319-4988-a570-f6e40eb68ba1_1p,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_1p,
1729dba0-c4bd-4d95-a3c2-72bce290a745_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:
37e95148-efb7-444f-9680-3809e549df1c_1p,
55c92202-a724-4edc-8d72-7e4cf04dc072_1p,
e0cfce26-083f-4991-9046-203e6b3c07d2_1p,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa_1p,
b06dce37-0ff0-4b8f-b244-b6de93efe489_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:
bfc84937-a069-433d-813c-05bd8677e0c9_1p,
8f524b58-06a3-48c0-ac49-c55b24645ca9_1p,
869abb3d-901f-4104-9b9d-7828d40b8f6f_1p,
4b1b9d11-831b-47fe-9d24-ff1bbfba4ec5_1p,
13387be8-e9da-4c7e-8786-98573ed549d0_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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_1p,
38031c54-5a1f-426c-8d44-6558cafadad7_1p,
eba486b2-5385-4f49-a1d3-17e8de0f549c_1p,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_1p,
647bde12-d3c3-4c08-a540-be4d27777977_1p
result, different session:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_1p,
38031c54-5a1f-426c-8d44-6558cafadad7_1p,
eba486b2-5385-4f49-a1d3-17e8de0f549c_1p,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_1p,
647bde12-d3c3-4c08-a540-be4d27777977_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:
46d67fff-34f6-41b0-a602-055fc81add88_1p,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3_1p,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9_1p,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded_1p,
c2c85548-704b-4c5d-9307-e2c68d489d94_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: bc66f7d3-0262-4b48-9c0e-53bdadf8bbba_1p
result, different session: null
unsupported: false
passed: true
test failed: false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
f050658f-2ebb-4ff5-89e4-0e4fd539feec_1p,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4_1p,
dd6f416b-87e9-46cf-a282-5dc2d81b6141_1p,
880be7bc-321d-4ecd-aee6-43915c366159_1p,
a4dcb550-f602-470e-98c8-45438d5d9421_1p
result, different session:
f050658f-2ebb-4ff5-89e4-0e4fd539feec_1p,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4_1p,
dd6f416b-87e9-46cf-a282-5dc2d81b6141_1p,
880be7bc-321d-4ecd-aee6-43915c366159_1p,
a4dcb550-f602-470e-98c8-45438d5d9421_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:
1ca74825-73c1-4b34-9150-4b02e25da6cf_1p,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_1p,
e680b667-df62-4bd4-bee3-53e075a20820_1p,
d10395b3-ceaa-47f5-8862-bff9941e893f_1p,
f52e636a-8081-46eb-9b80-8109f65dc7ef_1p
result, different session:
1ca74825-73c1-4b34-9150-4b02e25da6cf_1p,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_1p,
e680b667-df62-4bd4-bee3-53e075a20820_1p,
d10395b3-ceaa-47f5-8862-bff9941e893f_1p,
f52e636a-8081-46eb-9b80-8109f65dc7ef_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, 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:
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
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: 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, 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: 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
result, different session: 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 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, 1, 1, 1, 2
result, different session: 1, 1, 1, 1, 2
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: 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
result, different session: 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 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, h2, h3, h3
result, different session: h3, h3, h2, h3, h3
unsupported: false, false, true, false, false
passed: 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, 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: 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
result, different session: h2
unsupported: true
passed: undefined
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, 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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
00a66100-b08b-4582-ac8f-2711162571bf_3p,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_3p,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_3p,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_3p,
9ba430f3-d404-4644-b066-01ffe36f8844_3p
result, different session:
00a66100-b08b-4582-ac8f-2711162571bf_3p,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_3p,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_3p,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_3p,
9ba430f3-d404-4644-b066-01ffe36f8844_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_3p,
7b359b80-172d-4b65-a36b-19110a97abda_3p,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_3p,
b44eb135-e90d-4b39-b818-2480ccd896bb_3p,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_3p
result, different session:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_3p,
7b359b80-172d-4b65-a36b-19110a97abda_3p,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_3p,
b44eb135-e90d-4b39-b818-2480ccd896bb_3p,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
b57dc506-f666-4d1d-83bf-2f829f712876_3p,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_3p,
2cac2b62-69f4-44a0-bd9a-784799f06d82_3p,
d4e07dff-5634-49ee-b3d8-f536d818bdda_3p,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_3p
result, different session:
b57dc506-f666-4d1d-83bf-2f829f712876_3p,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_3p,
2cac2b62-69f4-44a0-bd9a-784799f06d82_3p,
d4e07dff-5634-49ee-b3d8-f536d818bdda_3p,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
1868454d-7cab-4b01-8172-fbb35b6143ae_3p,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_3p,
608a9f7b-7319-4988-a570-f6e40eb68ba1_3p,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_3p,
1729dba0-c4bd-4d95-a3c2-72bce290a745_3p
result, different session:
1868454d-7cab-4b01-8172-fbb35b6143ae_3p,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_3p,
608a9f7b-7319-4988-a570-f6e40eb68ba1_3p,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_3p,
1729dba0-c4bd-4d95-a3c2-72bce290a745_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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
37e95148-efb7-444f-9680-3809e549df1c_3p,
55c92202-a724-4edc-8d72-7e4cf04dc072_3p,
e0cfce26-083f-4991-9046-203e6b3c07d2_3p,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa_3p,
b06dce37-0ff0-4b8f-b244-b6de93efe489_3p
result, different session:
Error: cacheKeys[0] is undefined,
Error: cacheKeys[0] is undefined,
Error: cacheKeys[0] is undefined,
Error: cacheKeys[0] is undefined,
Error: cacheKeys[0] is undefined
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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 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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_3p,
38031c54-5a1f-426c-8d44-6558cafadad7_3p,
eba486b2-5385-4f49-a1d3-17e8de0f549c_3p,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_3p,
647bde12-d3c3-4c08-a540-be4d27777977_3p
result, different session:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_3p,
38031c54-5a1f-426c-8d44-6558cafadad7_3p,
eba486b2-5385-4f49-a1d3-17e8de0f549c_3p,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_3p,
647bde12-d3c3-4c08-a540-be4d27777977_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
46d67fff-34f6-41b0-a602-055fc81add88_3p,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3_3p,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9_3p,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded_3p,
c2c85548-704b-4c5d-9307-e2c68d489d94_3p
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: 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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session: Error: The operation is insecure.
result, different session: Error: The operation is insecure.
unsupported: true
passed: undefined
test failed: false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
f050658f-2ebb-4ff5-89e4-0e4fd539feec_3p,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4_3p,
dd6f416b-87e9-46cf-a282-5dc2d81b6141_3p,
880be7bc-321d-4ecd-aee6-43915c366159_3p,
a4dcb550-f602-470e-98c8-45438d5d9421_3p
result, different session:
f050658f-2ebb-4ff5-89e4-0e4fd539feec_3p,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4_3p,
dd6f416b-87e9-46cf-a282-5dc2d81b6141_3p,
880be7bc-321d-4ecd-aee6-43915c366159_3p,
a4dcb550-f602-470e-98c8-45438d5d9421_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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
1ca74825-73c1-4b34-9150-4b02e25da6cf_3p,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_3p,
e680b667-df62-4bd4-bee3-53e075a20820_3p,
d10395b3-ceaa-47f5-8862-bff9941e893f_3p,
f52e636a-8081-46eb-9b80-8109f65dc7ef_3p
result, different session:
1ca74825-73c1-4b34-9150-4b02e25da6cf_3p,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_3p,
e680b667-df62-4bd4-bee3-53e075a20820_3p,
d10395b3-ceaa-47f5-8862-bff9941e893f_3p,
f52e636a-8081-46eb-9b80-8109f65dc7ef_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
cookie (HTTP)
The cookie, first introduced by Netscape in 1994, is a small amount of data stored by your browser on a website's behalf. It has legitimate uses, but it is also the classic cross-site tracking mechanism, and today still the most popular method of tracking users across websites. Browsers can stop cookies from being used for cross-site tracking by either blocking or partitioning them. |
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
00a66100-b08b-4582-ac8f-2711162571bf_3p_http,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_3p_http,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_3p_http,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_3p_http,
9ba430f3-d404-4644-b066-01ffe36f8844_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_3p_http,
7b359b80-172d-4b65-a36b-19110a97abda_3p_http,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_3p_http,
b44eb135-e90d-4b39-b818-2480ccd896bb_3p_http,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_3p_http
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
b57dc506-f666-4d1d-83bf-2f829f712876_3p_http,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_3p_http,
2cac2b62-69f4-44a0-bd9a-784799f06d82_3p_http,
d4e07dff-5634-49ee-b3d8-f536d818bdda_3p_http,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
1868454d-7cab-4b01-8172-fbb35b6143ae_3p_http,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_3p_http,
608a9f7b-7319-4988-a570-f6e40eb68ba1_3p_http,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_3p_http,
1729dba0-c4bd-4d95-a3c2-72bce290a745_3p_http
result, different session:
1868454d-7cab-4b01-8172-fbb35b6143ae_3p_http,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_3p_http,
608a9f7b-7319-4988-a570-f6e40eb68ba1_3p_http,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_3p_http,
1729dba0-c4bd-4d95-a3c2-72bce290a745_3p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
37e95148-efb7-444f-9680-3809e549df1c_3p_http,
55c92202-a724-4edc-8d72-7e4cf04dc072_3p_http,
e0cfce26-083f-4991-9046-203e6b3c07d2_3p_http,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa_3p_http,
b06dce37-0ff0-4b8f-b244-b6de93efe489_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_3p_http,
38031c54-5a1f-426c-8d44-6558cafadad7_3p_http,
eba486b2-5385-4f49-a1d3-17e8de0f549c_3p_http,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_3p_http,
647bde12-d3c3-4c08-a540-be4d27777977_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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: null
result, different session: null
unsupported: true
passed: undefined
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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
1ca74825-73c1-4b34-9150-4b02e25da6cf_3p_http,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_3p_http,
e680b667-df62-4bd4-bee3-53e075a20820_3p_http,
d10395b3-ceaa-47f5-8862-bff9941e893f_3p_http,
f52e636a-8081-46eb-9b80-8109f65dc7ef_3p_http
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
00a66100-b08b-4582-ac8f-2711162571bf_3p_js,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_3p_js,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_3p_js,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_3p_js,
9ba430f3-d404-4644-b066-01ffe36f8844_3p_js
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_3p_js,
7b359b80-172d-4b65-a36b-19110a97abda_3p_js,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_3p_js,
b44eb135-e90d-4b39-b818-2480ccd896bb_3p_js,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
b57dc506-f666-4d1d-83bf-2f829f712876_3p_js,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_3p_js,
2cac2b62-69f4-44a0-bd9a-784799f06d82_3p_js,
d4e07dff-5634-49ee-b3d8-f536d818bdda_3p_js,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_3p_js
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
1868454d-7cab-4b01-8172-fbb35b6143ae_3p_js,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_3p_js,
608a9f7b-7319-4988-a570-f6e40eb68ba1_3p_js,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_3p_js,
1729dba0-c4bd-4d95-a3c2-72bce290a745_3p_js
result, different session:
1868454d-7cab-4b01-8172-fbb35b6143ae_3p_js,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_3p_js,
608a9f7b-7319-4988-a570-f6e40eb68ba1_3p_js,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_3p_js,
1729dba0-c4bd-4d95-a3c2-72bce290a745_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
37e95148-efb7-444f-9680-3809e549df1c_3p_js,
55c92202-a724-4edc-8d72-7e4cf04dc072_3p_js,
e0cfce26-083f-4991-9046-203e6b3c07d2_3p_js,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa_3p_js,
b06dce37-0ff0-4b8f-b244-b6de93efe489_3p_js
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_3p_js,
38031c54-5a1f-426c-8d44-6558cafadad7_3p_js,
eba486b2-5385-4f49-a1d3-17e8de0f549c_3p_js,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_3p_js,
647bde12-d3c3-4c08-a540-be4d27777977_3p_js
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session: null
result, different session: null
unsupported: true
passed: undefined
test failed: false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session: , , , ,
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:
1ca74825-73c1-4b34-9150-4b02e25da6cf_3p_js,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_3p_js,
e680b667-df62-4bd4-bee3-53e075a20820_3p_js,
d10395b3-ceaa-47f5-8862-bff9941e893f_3p_js,
f52e636a-8081-46eb-9b80-8109f65dc7ef_3p_js
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
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:
00a66100-b08b-4582-ac8f-2711162571bf_3p,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_3p,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_3p,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_3p,
9ba430f3-d404-4644-b066-01ffe36f8844_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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_3p,
7b359b80-172d-4b65-a36b-19110a97abda_3p,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_3p,
b44eb135-e90d-4b39-b818-2480ccd896bb_3p,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_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:
b57dc506-f666-4d1d-83bf-2f829f712876_3p,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_3p,
2cac2b62-69f4-44a0-bd9a-784799f06d82_3p,
d4e07dff-5634-49ee-b3d8-f536d818bdda_3p,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_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:
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:
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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_3p,
38031c54-5a1f-426c-8d44-6558cafadad7_3p,
eba486b2-5385-4f49-a1d3-17e8de0f549c_3p,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_3p,
647bde12-d3c3-4c08-a540-be4d27777977_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:
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
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: , , , ,
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:
1ca74825-73c1-4b34-9150-4b02e25da6cf_3p,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_3p,
e680b667-df62-4bd4-bee3-53e075a20820_3p,
d10395b3-ceaa-47f5-8862-bff9941e893f_3p,
f52e636a-8081-46eb-9b80-8109f65dc7ef_3p
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
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="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_5991675492935749,
fake_34889112565317637,
fake_972366307600131,
fake_1892089784130342,
fake_34527530480777546
result, different session:
fake_5991675492935749,
fake_34889112565317637,
fake_972366307600131,
fake_1892089784130342,
fake_34527530480777546
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${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="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_5257804768248466,
fake_4637184380527035,
fake_8823371883582973,
fake_8545321677506346,
fake_49745095763016
result, different session:
fake_5257804768248466,
fake_4637184380527035,
fake_8823371883582973,
fake_8545321677506346,
fake_49745095763016
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${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="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_3324754709919411,
fake_9801543663853807,
fake_8923284694532214,
fake_35427628425014457,
fake_812235314387111
result, different session:
fake_3324754709919411,
fake_9801543663853807,
fake_8923284694532214,
fake_35427628425014457,
fake_812235314387111
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${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="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_3713709814954609,
fake_7427828546977344,
fake_7237076094916106,
fake_380361233877875,
fake_10799795024964642
result, different session:
fake_3713709814954609,
fake_7427828546977344,
fake_7237076094916106,
fake_380361233877875,
fake_10799795024964642
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${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="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_5417369654880639,
fake_016395068093231435,
fake_7174482214219167,
fake_03940589481814327,
fake_8150316289694719
result, different session:
fake_35381635110247234,
fake_5322487866830146,
fake_38021309072416853,
fake_9269069634073177,
fake_3748443292748276
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${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="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_3889677777883567,
fake_304000100641759,
fake_7486563053385384,
fake_20150200566169918,
fake_19914493592752636
result, different session:
fake_5730691240028363,
fake_4422185676756665,
fake_6463932925379319,
fake_728150820181924,
fake_3011561409378136
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${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="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_8724702628423793,
fake_9582607964914005,
fake_4961066807829839,
fake_5621679893880851,
fake_6558248311711039
result, different session:
fake_8724702628423793,
fake_9582607964914005,
fake_4961066807829839,
fake_5621679893880851,
fake_6558248311711039
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${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="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_3108167070602028,
fake_7446831900065172,
fake_580592698173821,
fake_1187304810999994,
fake_1125599112469795
result, different session:
fake_3108167070602028,
fake_7446831900065172,
fake_580592698173821,
fake_1187304810999994,
fake_1125599112469795
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${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="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session: fake_9565282551022709
result, different session: fake_3824733247824721
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${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="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_307477285455408,
fake_511657938184209,
fake_6877352844459454,
fake_33509750381289094,
fake_9421857056240666
result, different session:
fake_307477285455408,
fake_511657938184209,
fake_6877352844459454,
fake_33509750381289094,
fake_9421857056240666
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${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_49601987867449915,
fake_2689759970948018,
fake_3066981463522782,
fake_9434838542652679,
fake_6068501051180013
result, different session:
fake_49601987867449915,
fake_2689759970948018,
fake_3066981463522782,
fake_9434838542652679,
fake_6068501051180013
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, 1, 2, 1, 1
result, different session: 1, 1, 2, 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: 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
result, different session: 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 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, 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: 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
result, different session: 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 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("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${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("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${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("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1
result, different session: 2
unsupported: false
passed: true
test failed: false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${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("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${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, 2, 1, 1, 1
result, different session: 1, 2, 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: 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
result, different session: 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 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, 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: 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
result, different session: 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 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:
00a66100-b08b-4582-ac8f-2711162571bf_3p,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_3p,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_3p,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_3p,
9ba430f3-d404-4644-b066-01ffe36f8844_3p
result, different session:
00a66100-b08b-4582-ac8f-2711162571bf_3p,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_3p,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_3p,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_3p,
9ba430f3-d404-4644-b066-01ffe36f8844_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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_3p,
7b359b80-172d-4b65-a36b-19110a97abda_3p,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_3p,
b44eb135-e90d-4b39-b818-2480ccd896bb_3p,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_3p
result, different session:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_3p,
7b359b80-172d-4b65-a36b-19110a97abda_3p,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_3p,
b44eb135-e90d-4b39-b818-2480ccd896bb_3p,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_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:
b57dc506-f666-4d1d-83bf-2f829f712876_3p,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_3p,
2cac2b62-69f4-44a0-bd9a-784799f06d82_3p,
d4e07dff-5634-49ee-b3d8-f536d818bdda_3p,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_3p
result, different session:
b57dc506-f666-4d1d-83bf-2f829f712876_3p,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_3p,
2cac2b62-69f4-44a0-bd9a-784799f06d82_3p,
d4e07dff-5634-49ee-b3d8-f536d818bdda_3p,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_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:
1868454d-7cab-4b01-8172-fbb35b6143ae_3p,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_3p,
608a9f7b-7319-4988-a570-f6e40eb68ba1_3p,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_3p,
1729dba0-c4bd-4d95-a3c2-72bce290a745_3p
result, different session:
1868454d-7cab-4b01-8172-fbb35b6143ae_3p,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_3p,
608a9f7b-7319-4988-a570-f6e40eb68ba1_3p,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_3p,
1729dba0-c4bd-4d95-a3c2-72bce290a745_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:
37e95148-efb7-444f-9680-3809e549df1c_3p,
55c92202-a724-4edc-8d72-7e4cf04dc072_3p,
e0cfce26-083f-4991-9046-203e6b3c07d2_3p,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa_3p,
b06dce37-0ff0-4b8f-b244-b6de93efe489_3p
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:
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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_3p,
38031c54-5a1f-426c-8d44-6558cafadad7_3p,
eba486b2-5385-4f49-a1d3-17e8de0f549c_3p,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_3p,
647bde12-d3c3-4c08-a540-be4d27777977_3p
result, different session:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_3p,
38031c54-5a1f-426c-8d44-6558cafadad7_3p,
eba486b2-5385-4f49-a1d3-17e8de0f549c_3p,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_3p,
647bde12-d3c3-4c08-a540-be4d27777977_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:
46d67fff-34f6-41b0-a602-055fc81add88_3p,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3_3p,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9_3p,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded_3p,
c2c85548-704b-4c5d-9307-e2c68d489d94_3p
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: Error: The operation is insecure.
result, different session: Error: The operation is insecure.
unsupported: true
passed: undefined
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:
f050658f-2ebb-4ff5-89e4-0e4fd539feec_3p,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4_3p,
dd6f416b-87e9-46cf-a282-5dc2d81b6141_3p,
880be7bc-321d-4ecd-aee6-43915c366159_3p,
a4dcb550-f602-470e-98c8-45438d5d9421_3p
result, different session:
f050658f-2ebb-4ff5-89e4-0e4fd539feec_3p,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4_3p,
dd6f416b-87e9-46cf-a282-5dc2d81b6141_3p,
880be7bc-321d-4ecd-aee6-43915c366159_3p,
a4dcb550-f602-470e-98c8-45438d5d9421_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:
1ca74825-73c1-4b34-9150-4b02e25da6cf_3p,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_3p,
e680b667-df62-4bd4-bee3-53e075a20820_3p,
d10395b3-ceaa-47f5-8862-bff9941e893f_3p,
f52e636a-8081-46eb-9b80-8109f65dc7ef_3p
result, different session:
1ca74825-73c1-4b34-9150-4b02e25da6cf_3p,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_3p,
e680b667-df62-4bd4-bee3-53e075a20820_3p,
d10395b3-ceaa-47f5-8862-bff9941e893f_3p,
f52e636a-8081-46eb-9b80-8109f65dc7ef_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:
00a66100-b08b-4582-ac8f-2711162571bf_3p,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_3p,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_3p,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_3p,
9ba430f3-d404-4644-b066-01ffe36f8844_3p
result, different session:
00a66100-b08b-4582-ac8f-2711162571bf_3p,
d5b9ea50-2506-4ea5-b56c-5da6d98892d2_3p,
15f3830d-7c89-4b2a-ae46-d0b5c4dd786e_3p,
16415681-791c-4ee7-a2d0-0e0eb95c23bd_3p,
9ba430f3-d404-4644-b066-01ffe36f8844_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:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_3p,
7b359b80-172d-4b65-a36b-19110a97abda_3p,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_3p,
b44eb135-e90d-4b39-b818-2480ccd896bb_3p,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_3p
result, different session:
aec1dd5c-eb93-4a20-bd1a-da08c49aa0fa_3p,
7b359b80-172d-4b65-a36b-19110a97abda_3p,
c0222719-f8a3-48d5-83d6-d2d051d5ed0d_3p,
b44eb135-e90d-4b39-b818-2480ccd896bb_3p,
d7b43745-fc20-4ab2-85fd-bb898ae7f41d_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:
b57dc506-f666-4d1d-83bf-2f829f712876_3p,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_3p,
2cac2b62-69f4-44a0-bd9a-784799f06d82_3p,
d4e07dff-5634-49ee-b3d8-f536d818bdda_3p,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_3p
result, different session:
b57dc506-f666-4d1d-83bf-2f829f712876_3p,
58ffb87e-dd1e-489a-81c8-7d9afde3e87b_3p,
2cac2b62-69f4-44a0-bd9a-784799f06d82_3p,
d4e07dff-5634-49ee-b3d8-f536d818bdda_3p,
7e51936d-9c06-46c4-97c3-6eadf0f43c4e_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:
1868454d-7cab-4b01-8172-fbb35b6143ae_3p,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_3p,
608a9f7b-7319-4988-a570-f6e40eb68ba1_3p,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_3p,
1729dba0-c4bd-4d95-a3c2-72bce290a745_3p
result, different session:
1868454d-7cab-4b01-8172-fbb35b6143ae_3p,
24bf3689-1221-4323-9ac0-4fe6d00cd10f_3p,
608a9f7b-7319-4988-a570-f6e40eb68ba1_3p,
5e464ca5-0d33-4a73-8986-6d11f2a6446d_3p,
1729dba0-c4bd-4d95-a3c2-72bce290a745_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:
37e95148-efb7-444f-9680-3809e549df1c_3p,
55c92202-a724-4edc-8d72-7e4cf04dc072_3p,
e0cfce26-083f-4991-9046-203e6b3c07d2_3p,
ab33ead3-58db-47fb-8fc9-81455e8e1dfa_3p,
b06dce37-0ff0-4b8f-b244-b6de93efe489_3p
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:
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:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_3p,
38031c54-5a1f-426c-8d44-6558cafadad7_3p,
eba486b2-5385-4f49-a1d3-17e8de0f549c_3p,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_3p,
647bde12-d3c3-4c08-a540-be4d27777977_3p
result, different session:
0c5093fe-ab91-435a-9298-f89bd9ce68a9_3p,
38031c54-5a1f-426c-8d44-6558cafadad7_3p,
eba486b2-5385-4f49-a1d3-17e8de0f549c_3p,
2c41a00d-b2ad-47ad-b882-27a9072e7fd9_3p,
647bde12-d3c3-4c08-a540-be4d27777977_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:
46d67fff-34f6-41b0-a602-055fc81add88_3p,
f7d4dfb5-9f4e-494a-ad23-8e0cf356adb3_3p,
23a7f5f4-ddb5-4e1e-9e2d-4e4685ce2ed9_3p,
f5e0fdbf-5eff-47d7-bd23-5fda8fdacded_3p,
c2c85548-704b-4c5d-9307-e2c68d489d94_3p
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: Error: The operation is insecure.
result, different session: Error: The operation is insecure.
unsupported: true
passed: undefined
test failed: false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
f050658f-2ebb-4ff5-89e4-0e4fd539feec_3p,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4_3p,
dd6f416b-87e9-46cf-a282-5dc2d81b6141_3p,
880be7bc-321d-4ecd-aee6-43915c366159_3p,
a4dcb550-f602-470e-98c8-45438d5d9421_3p
result, different session:
f050658f-2ebb-4ff5-89e4-0e4fd539feec_3p,
2aa77901-7f4d-438b-ad48-2ed7ce79c7e4_3p,
dd6f416b-87e9-46cf-a282-5dc2d81b6141_3p,
880be7bc-321d-4ecd-aee6-43915c366159_3p,
a4dcb550-f602-470e-98c8-45438d5d9421_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:
1ca74825-73c1-4b34-9150-4b02e25da6cf_3p,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_3p,
e680b667-df62-4bd4-bee3-53e075a20820_3p,
d10395b3-ceaa-47f5-8862-bff9941e893f_3p,
f52e636a-8081-46eb-9b80-8109f65dc7ef_3p
result, different session:
1ca74825-73c1-4b34-9150-4b02e25da6cf_3p,
5f0ef772-189c-40cb-adc1-d3343c1a03cf_3p,
e680b667-df62-4bd4-bee3-53e075a20820_3p,
d10395b3-ceaa-47f5-8862-bff9941e893f_3p,
f52e636a-8081-46eb-9b80-8109f65dc7ef_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,
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:
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
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: 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, 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: 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
result, different session: 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 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, 1, 2, 1, 2
result, different session: 1, 1, 2, 1, 2
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: 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
result, different session: 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 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, 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 |
passed: true leak detected: 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, 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 |
passed: true leak detected: 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, 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 |
passed: true leak detected: 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, 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 |
passed: true leak detected: 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, 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 |
passed: true leak detected: 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, 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: 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, 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, 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: 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, 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, 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: 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 leak detected: 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, 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 |
passed: true leak detected: 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, 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: 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 leak detected: 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, 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: 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 leak detected: 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 |