(default settings)
|
brave 1.64 |
chrome 122.0 |
duckduckgo 1.58 |
edge 122.0 |
firefox 123.0a1 |
opera 108.0 |
safari 17.4 |
tor 13.5a3 |
vivaldi 6.6 |
|---|---|---|---|---|---|---|---|---|---|
|
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.
| |||||||||
|
Alt-Svc
Alt-Svc allows the server to indicate to the web browser that a resource should be loaded on a different server. Because this is a persistent setting, it could be used to track users across websites if it is not correctly partitioned.
| write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same first party: h3, h3, h3, h3, h3
result, different first party: h2, h2, h2, h2, h2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same first party: h3, h3, h3, h3, h3
result, different first party: h2, h2, h2, h2, h2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same first party:
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: h3, h3, h3, h3, Error: Unsupported
result, different first party: h2, h2, h2, h2, h2
unsupported: false, false, false, false, true
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:
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,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different first party: h2, h2, h2, h2
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same first party: h3, h3, h3, h3, h3
result, different first party: h2, h2, h2, h2, h2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
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=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
ee71b06b-4d58-4df1-8e3b-d80fc7563652,
8c68c7ee-c632-4072-8551-cc017fa0ab3e,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3,
ed89c5d5-5284-434d-ab20-66f4068e19e1,
11a97175-8126-4d8f-929a-2bb60b0ac910
result, different first party:
Error: Failed to fetch,
Error: Failed to fetch,
Error: Failed to fetch,
Error: Failed to fetch,
Error: Failed to fetch
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d,
151c55c3-a19d-4907-8ca6-e7f81812d03d,
f8b802d7-0349-4ce7-82af-d414190aed74,
0293349f-276f-42ac-a23c-88a602d7a729,
ba795a10-c6e6-4e64-99cc-aa971ee054bf
result, different first party:
c10611f1-27c2-45ff-84f1-5d04edd81a4d,
151c55c3-a19d-4907-8ca6-e7f81812d03d,
f8b802d7-0349-4ce7-82af-d414190aed74,
0293349f-276f-42ac-a23c-88a602d7a729,
ba795a10-c6e6-4e64-99cc-aa971ee054bf
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=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
b255b55d-66a6-483f-818d-063a523543c7,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5,
d482d374-5c74-404c-9bf7-a2c8664264eb,
9dd98fc2-e686-4ccd-add0-ac675161a750,
84a0a2a7-946b-49fb-9d49-0468e446f78d
result, different first party:
Error: Load failed,
Error: Load failed,
Error: Load failed,
Error: Load failed,
Error: Load failed
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${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:
1b89445c-5926-4118-8658-017efc2b833c,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b,
4323e7c8-e0d5-4522-8c43-19ba80ce192d
result, different first party:
1b89445c-5926-4118-8658-017efc2b833c,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b,
4323e7c8-e0d5-4522-8c43-19ba80ce192d
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=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
51fe2eae-3539-48a0-b586-d3587498a793,
446c5e9c-0d16-48b6-8b25-05434242cf13,
57a65d33-a8e6-4558-8181-fc99998c775e,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f,
ee766b86-23a2-4ac4-9be6-c7304ee559e6
result, different first party:
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${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:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34,
044b6095-ea66-4597-908c-f7ec712def61,
a5d3884b-bf19-409c-877a-f02390c78a6a,
7e9d3e58-e74b-4678-8d31-23260d1a9c08,
ac4662d3-42ee-44c9-8661-368baf63833f
result, different first party:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34,
044b6095-ea66-4597-908c-f7ec712def61,
a5d3884b-bf19-409c-877a-f02390c78a6a,
7e9d3e58-e74b-4678-8d31-23260d1a9c08,
ac4662d3-42ee-44c9-8661-368baf63833f
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=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
47a37c68-eb39-4765-8686-ffe721bfeb14,
f8ec9174-550d-443b-aa57-09ffdaf3329c,
afd67c32-01ad-4959-b33a-06554baf552b,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc,
2abbfec8-5efe-4964-92d4-4c41dd9c5704
result, different first party:
Error: Load failed,
Error: Load failed,
Error: Load failed,
Error: Load failed,
Error: Load failed
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${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:
ded93f3c-d854-4ed0-b2b1-e9ee70fe4469,
ce5f990e-f04b-448e-b94c-0d8d5d6e250d,
a94b8b4f-77c6-43c1-9789-0b248b4c8814,
13b17d06-b2e3-49b0-a719-9bdf05cce012
result, different first party:
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.,
Error: NetworkError when attempting to fetch resource.
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (secret) => {
try {
let blobURL = URL.createObjectURL(new Blob([secret]));
fetch(`${baseURI}blob?mode=write&key=${secret}&blobUrl=${encodeURIComponent(blobURL)}`);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async (secret) => {
let response = await fetch(`${baseURI}blob?mode=read&key=${secret}`);
let result = await response.json();
let blobUrl = decodeURIComponent(result.blobUrl);
let blobResponse = await fetch(blobUrl);
return blobResponse.text();
}
result, same first party:
75055c6f-aaf1-4209-9a57-7da8d1c561aa,
62d3a65f-d92f-4358-b36d-a7a9827719f7,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d,
8a8e631f-d912-47fd-a171-1f35d71c1f71,
3c5242f8-e968-4ec1-a309-8325d4e50ad2
result, different first party:
75055c6f-aaf1-4209-9a57-7da8d1c561aa,
62d3a65f-d92f-4358-b36d-a7a9827719f7,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d,
8a8e631f-d912-47fd-a171-1f35d71c1f71,
3c5242f8-e968-4ec1-a309-8325d4e50ad2
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:
ee71b06b-4d58-4df1-8e3b-d80fc7563652,
8c68c7ee-c632-4072-8551-cc017fa0ab3e,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3,
ed89c5d5-5284-434d-ab20-66f4068e19e1,
11a97175-8126-4d8f-929a-2bb60b0ac910
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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d,
151c55c3-a19d-4907-8ca6-e7f81812d03d,
f8b802d7-0349-4ce7-82af-d414190aed74,
0293349f-276f-42ac-a23c-88a602d7a729,
ba795a10-c6e6-4e64-99cc-aa971ee054bf
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:
b255b55d-66a6-483f-818d-063a523543c7,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5,
d482d374-5c74-404c-9bf7-a2c8664264eb,
9dd98fc2-e686-4ccd-add0-ac675161a750,
84a0a2a7-946b-49fb-9d49-0468e446f78d
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:
1b89445c-5926-4118-8658-017efc2b833c,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b,
4323e7c8-e0d5-4522-8c43-19ba80ce192d
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:
51fe2eae-3539-48a0-b586-d3587498a793,
446c5e9c-0d16-48b6-8b25-05434242cf13,
57a65d33-a8e6-4558-8181-fc99998c775e,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f,
ee766b86-23a2-4ac4-9be6-c7304ee559e6
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:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34,
044b6095-ea66-4597-908c-f7ec712def61,
a5d3884b-bf19-409c-877a-f02390c78a6a,
7e9d3e58-e74b-4678-8d31-23260d1a9c08,
ac4662d3-42ee-44c9-8661-368baf63833f
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:
47a37c68-eb39-4765-8686-ffe721bfeb14,
f8ec9174-550d-443b-aa57-09ffdaf3329c,
afd67c32-01ad-4959-b33a-06554baf552b,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc,
2abbfec8-5efe-4964-92d4-4c41dd9c5704
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:
ded93f3c-d854-4ed0-b2b1-e9ee70fe4469,
ce5f990e-f04b-448e-b94c-0d8d5d6e250d,
a94b8b4f-77c6-43c1-9789-0b248b4c8814,
13b17d06-b2e3-49b0-a719-9bdf05cce012
result, different first party:
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
passed: true, true, true, true
test failed: false, false, false, false
|
write: (secret) => {
try {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data === "request") {
bc.postMessage(secret);
}
};
} catch (e) {
throw new Error("Unsupported");
}
}
read: () =>
new Promise((resolve, reject) => {
let bc = new BroadcastChannel("secrets");
bc.onmessage = (event) => {
if (event.data !== "request") {
resolve(event.data);
}
};
bc.postMessage("request");
setTimeout(() => reject({message: "no BroadcastChannel message"}), 3000);
})
result, same first party:
75055c6f-aaf1-4209-9a57-7da8d1c561aa,
62d3a65f-d92f-4358-b36d-a7a9827719f7,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d,
8a8e631f-d912-47fd-a171-1f35d71c1f71,
3c5242f8-e968-4ec1-a309-8325d4e50ad2
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:
ee71b06b-4d58-4df1-8e3b-d80fc7563652,
8c68c7ee-c632-4072-8551-cc017fa0ab3e,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3,
ed89c5d5-5284-434d-ab20-66f4068e19e1,
11a97175-8126-4d8f-929a-2bb60b0ac910
result, different first party:
Error: Failed to execute 'open' on 'CacheStorage': An attempt was made to break through the security policy of the user agent.,
Error: Failed to execute 'open' on 'CacheStorage': An attempt was made to break through the security policy of the user agent.,
Error: Failed to execute 'open' on 'CacheStorage': An attempt was made to break through the security policy of the user agent.,
Error: Failed to execute 'open' on 'CacheStorage': An attempt was made to break through the security policy of the user agent.,
Error: Failed to execute 'open' on 'CacheStorage': An attempt was made to break through the security policy of the user agent.
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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
c10611f1-27c2-45ff-84f1-5d04edd81a4d,
151c55c3-a19d-4907-8ca6-e7f81812d03d,
f8b802d7-0349-4ce7-82af-d414190aed74,
0293349f-276f-42ac-a23c-88a602d7a729,
ba795a10-c6e6-4e64-99cc-aa971ee054bf
result, different first party:
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
b255b55d-66a6-483f-818d-063a523543c7,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5,
d482d374-5c74-404c-9bf7-a2c8664264eb,
9dd98fc2-e686-4ccd-add0-ac675161a750,
84a0a2a7-946b-49fb-9d49-0468e446f78d
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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
1b89445c-5926-4118-8658-017efc2b833c,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b,
4323e7c8-e0d5-4522-8c43-19ba80ce192d
result, different first party:
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
51fe2eae-3539-48a0-b586-d3587498a793,
446c5e9c-0d16-48b6-8b25-05434242cf13,
57a65d33-a8e6-4558-8181-fc99998c775e,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f,
ee766b86-23a2-4ac4-9be6-c7304ee559e6
result, different first party:
Error: can't access property "url",
cacheKeys[0] is undefined,
Error: can't access property "url",
cacheKeys[0] is undefined,
Error: can't access property "url",
cacheKeys[0] is undefined,
Error: can't access property "url",
cacheKeys[0] is undefined,
Error: can't access property "url",
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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34,
044b6095-ea66-4597-908c-f7ec712def61,
a5d3884b-bf19-409c-877a-f02390c78a6a,
7e9d3e58-e74b-4678-8d31-23260d1a9c08,
ac4662d3-42ee-44c9-8661-368baf63833f
result, different first party:
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url'),
Error: Cannot read properties of undefined (reading 'url')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
e6264598-c47e-47ae-9842-2ed7cbd067b3,
47a37c68-eb39-4765-8686-ffe721bfeb14,
47a37c68-eb39-4765-8686-ffe721bfeb14,
47a37c68-eb39-4765-8686-ffe721bfeb14,
47a37c68-eb39-4765-8686-ffe721bfeb14
result, different first party:
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url')
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
result, different first party:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same first party:
75055c6f-aaf1-4209-9a57-7da8d1c561aa,
62d3a65f-d92f-4358-b36d-a7a9827719f7,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d,
8a8e631f-d912-47fd-a171-1f35d71c1f71,
3c5242f8-e968-4ec1-a309-8325d4e50ad2
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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_http,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_http,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_http,
ed89c5d5-5284-434d-ab20-66f4068e19e1_http,
11a97175-8126-4d8f-929a-2bb60b0ac910_http
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_http,
151c55c3-a19d-4907-8ca6-e7f81812d03d_http,
f8b802d7-0349-4ce7-82af-d414190aed74_http,
0293349f-276f-42ac-a23c-88a602d7a729_http,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_http
result, different first party:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_http,
151c55c3-a19d-4907-8ca6-e7f81812d03d_http,
f8b802d7-0349-4ce7-82af-d414190aed74_http,
0293349f-276f-42ac-a23c-88a602d7a729_http,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
b255b55d-66a6-483f-818d-063a523543c7_http,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5_http,
d482d374-5c74-404c-9bf7-a2c8664264eb_http,
9dd98fc2-e686-4ccd-add0-ac675161a750_http,
84a0a2a7-946b-49fb-9d49-0468e446f78d_http
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
1b89445c-5926-4118-8658-017efc2b833c_http,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_http,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_http,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_http,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_http
result, different first party:
1b89445c-5926-4118-8658-017efc2b833c_http,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_http,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_http,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_http,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
51fe2eae-3539-48a0-b586-d3587498a793_http,
446c5e9c-0d16-48b6-8b25-05434242cf13_http,
57a65d33-a8e6-4558-8181-fc99998c775e_http,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_http,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_http
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_http,
044b6095-ea66-4597-908c-f7ec712def61_http,
a5d3884b-bf19-409c-877a-f02390c78a6a_http,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_http,
ac4662d3-42ee-44c9-8661-368baf63833f_http
result, different first party:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_http,
044b6095-ea66-4597-908c-f7ec712def61_http,
a5d3884b-bf19-409c-877a-f02390c78a6a_http,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_http,
ac4662d3-42ee-44c9-8661-368baf63833f_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
47a37c68-eb39-4765-8686-ffe721bfeb14_http,
f8ec9174-550d-443b-aa57-09ffdaf3329c_http,
afd67c32-01ad-4959-b33a-06554baf552b_http,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc_http,
2abbfec8-5efe-4964-92d4-4c41dd9c5704_http
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
ded93f3c-d854-4ed0-b2b1-e9ee70fe4469_http,
ce5f990e-f04b-448e-b94c-0d8d5d6e250d_http,
a94b8b4f-77c6-43c1-9789-0b248b4c8814_http,
13b17d06-b2e3-49b0-a719-9bdf05cce012_http
result, different first party: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same first party:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_http,
62d3a65f-d92f-4358-b36d-a7a9827719f7_http,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_http,
8a8e631f-d912-47fd-a171-1f35d71c1f71_http,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_http
result, different first party:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_http,
62d3a65f-d92f-4358-b36d-a7a9827719f7_http,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_http,
8a8e631f-d912-47fd-a171-1f35d71c1f71_http,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
cookie (JS)
The cookie, first introduced by Netscape in 1994, is a small amount of data stored by your browser on a website's behalf. It has legitimate uses, but it is also the classic cross-site tracking mechanism, and today still the most popular method of tracking users across websites. Browsers can stop cookies from being used for cross-site tracking by either blocking or partitioning them.
| write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_js,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_js,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_js,
ed89c5d5-5284-434d-ab20-66f4068e19e1_js,
11a97175-8126-4d8f-929a-2bb60b0ac910_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_js,
151c55c3-a19d-4907-8ca6-e7f81812d03d_js,
f8b802d7-0349-4ce7-82af-d414190aed74_js,
0293349f-276f-42ac-a23c-88a602d7a729_js,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_js
result, different first party:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_js,
151c55c3-a19d-4907-8ca6-e7f81812d03d_js,
f8b802d7-0349-4ce7-82af-d414190aed74_js,
0293349f-276f-42ac-a23c-88a602d7a729_js,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
b255b55d-66a6-483f-818d-063a523543c7_js,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5_js,
d482d374-5c74-404c-9bf7-a2c8664264eb_js,
9dd98fc2-e686-4ccd-add0-ac675161a750_js,
84a0a2a7-946b-49fb-9d49-0468e446f78d_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
1b89445c-5926-4118-8658-017efc2b833c_js,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_js,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_js,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_js,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_js
result, different first party:
1b89445c-5926-4118-8658-017efc2b833c_js,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_js,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_js,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_js,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
51fe2eae-3539-48a0-b586-d3587498a793_js,
446c5e9c-0d16-48b6-8b25-05434242cf13_js,
57a65d33-a8e6-4558-8181-fc99998c775e_js,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_js,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_js,
044b6095-ea66-4597-908c-f7ec712def61_js,
a5d3884b-bf19-409c-877a-f02390c78a6a_js,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_js,
ac4662d3-42ee-44c9-8661-368baf63833f_js
result, different first party:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_js,
044b6095-ea66-4597-908c-f7ec712def61_js,
a5d3884b-bf19-409c-877a-f02390c78a6a_js,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_js,
ac4662d3-42ee-44c9-8661-368baf63833f_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
47a37c68-eb39-4765-8686-ffe721bfeb14_js,
f8ec9174-550d-443b-aa57-09ffdaf3329c_js,
afd67c32-01ad-4959-b33a-06554baf552b_js,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc_js,
2abbfec8-5efe-4964-92d4-4c41dd9c5704_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
ded93f3c-d854-4ed0-b2b1-e9ee70fe4469_js,
ce5f990e-f04b-448e-b94c-0d8d5d6e250d_js,
a94b8b4f-77c6-43c1-9789-0b248b4c8814_js,
13b17d06-b2e3-49b0-a719-9bdf05cce012_js
result, different first party: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same first party:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_js,
62d3a65f-d92f-4358-b36d-a7a9827719f7_js,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_js,
8a8e631f-d912-47fd-a171-1f35d71c1f71_js,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_js
result, different first party:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_js,
62d3a65f-d92f-4358-b36d-a7a9827719f7_js,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_js,
8a8e631f-d912-47fd-a171-1f35d71c1f71_js,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_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:
ee71b06b-4d58-4df1-8e3b-d80fc7563652,
8c68c7ee-c632-4072-8551-cc017fa0ab3e,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3,
ed89c5d5-5284-434d-ab20-66f4068e19e1,
11a97175-8126-4d8f-929a-2bb60b0ac910
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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d,
151c55c3-a19d-4907-8ca6-e7f81812d03d,
f8b802d7-0349-4ce7-82af-d414190aed74,
0293349f-276f-42ac-a23c-88a602d7a729,
ba795a10-c6e6-4e64-99cc-aa971ee054bf
result, different first party:
c10611f1-27c2-45ff-84f1-5d04edd81a4d,
151c55c3-a19d-4907-8ca6-e7f81812d03d,
f8b802d7-0349-4ce7-82af-d414190aed74,
0293349f-276f-42ac-a23c-88a602d7a729,
ba795a10-c6e6-4e64-99cc-aa971ee054bf
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:
1b89445c-5926-4118-8658-017efc2b833c,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b,
4323e7c8-e0d5-4522-8c43-19ba80ce192d
result, different first party:
1b89445c-5926-4118-8658-017efc2b833c,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b,
4323e7c8-e0d5-4522-8c43-19ba80ce192d
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:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34,
044b6095-ea66-4597-908c-f7ec712def61,
a5d3884b-bf19-409c-877a-f02390c78a6a,
7e9d3e58-e74b-4678-8d31-23260d1a9c08,
ac4662d3-42ee-44c9-8661-368baf63833f
result, different first party:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34,
044b6095-ea66-4597-908c-f7ec712def61,
a5d3884b-bf19-409c-877a-f02390c78a6a,
7e9d3e58-e74b-4678-8d31-23260d1a9c08,
ac4662d3-42ee-44c9-8661-368baf63833f
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
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same first party:
75055c6f-aaf1-4209-9a57-7da8d1c561aa,
62d3a65f-d92f-4358-b36d-a7a9827719f7,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d,
8a8e631f-d912-47fd-a171-1f35d71c1f71,
3c5242f8-e968-4ec1-a309-8325d4e50ad2
result, different first party:
75055c6f-aaf1-4209-9a57-7da8d1c561aa,
62d3a65f-d92f-4358-b36d-a7a9827719f7,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d,
8a8e631f-d912-47fd-a171-1f35d71c1f71,
3c5242f8-e968-4ec1-a309-8325d4e50ad2
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_8295765323831601,
fake_8038834947304103,
fake_6663046074861256,
fake_9448513779036978,
fake_6366768100469617
result, different first party:
fake_5974567469046275,
fake_25289189659584643,
fake_9189786282241126,
fake_6302747010263827,
fake_10331263868897134
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_10744912669019602,
fake_12996391435920884,
fake_9216504887641661,
fake_914990050186554,
fake_2971703678806197
result, different first party:
fake_7091742658261697,
fake_9101529147722789,
fake_22329050579253318,
fake_12633090911964473,
fake_13229322058637982
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_24814145142066057,
fake_4588868789533971,
fake_4326031158735959,
fake_3625969116780514,
fake_9945771066976934
result, different first party:
fake_08198115129147188,
fake_4318251253098966,
fake_6808440636881192,
fake_05436972206794177,
fake_8375143021402887
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_10341447014288296,
fake_6704161165335238,
fake_8516315655604318,
fake_9723635118122382,
fake_6161084194682511
result, different first party:
fake_5543365349078146,
fake_6060491493310338,
fake_897132995352107,
fake_6706632005181534,
fake_12219259156842832
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_08870307015339596,
fake_9319002411245518,
fake_598514419472421,
fake_9695836367910413,
fake_6884893075465452
result, different first party:
fake_6714004820406665,
fake_7314685799060552,
fake_1409987613484769,
fake_40573187957956436,
fake_27037867461696385
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_9421118851569474,
fake_8765966196330399,
fake_8452306107025707,
fake_6269682758395978,
fake_5745848624679772
result, different first party:
fake_9202868403203306,
fake_7630329954260577,
fake_024572146604175282,
fake_7459783426767219,
fake_006226236022507381
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_9043404787629927,
fake_003271589095304117,
fake_2087302812516758,
fake_45172914207110204,
fake_0241631632410777
result, different first party:
fake_5885833868121866,
fake_24027806068301127,
fake_04593139626723941,
fake_8925420991328672,
fake_5093849002479467
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_8037225956889962,
fake_6070912994696986,
fake_1493566232832777,
fake_31821798089714304
result, different first party:
fake_8733541588602538,
fake_41324687485014877,
fake_6601287001261875,
fake_6442150770859232
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same first party:
fake_7412028895279212,
fake_12725608964178248,
fake_6029463915334188,
fake_7814289615712153,
fake_9513733553567691
result, different first party:
fake_8245402304729057,
fake_4972725097273123,
fake_7288053353537816,
fake_9032776292692954,
fake_32925062851353903
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: 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 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
result, different first party: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same first party: 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: 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 response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1
result, different first party: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
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: 2, 2, 2, 2, 2
result, different first party: 3, 3, 3, 3, 3
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 2, 2, 2, 2, 2
result, different first party: 3, 3, 3, 3, 3
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1
result, different first party: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
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:
ee71b06b-4d58-4df1-8e3b-d80fc7563652,
8c68c7ee-c632-4072-8551-cc017fa0ab3e,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3,
ed89c5d5-5284-434d-ab20-66f4068e19e1,
11a97175-8126-4d8f-929a-2bb60b0ac910
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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d,
151c55c3-a19d-4907-8ca6-e7f81812d03d,
f8b802d7-0349-4ce7-82af-d414190aed74,
0293349f-276f-42ac-a23c-88a602d7a729,
ba795a10-c6e6-4e64-99cc-aa971ee054bf
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:
1b89445c-5926-4118-8658-017efc2b833c,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b,
4323e7c8-e0d5-4522-8c43-19ba80ce192d
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:
51fe2eae-3539-48a0-b586-d3587498a793,
446c5e9c-0d16-48b6-8b25-05434242cf13,
57a65d33-a8e6-4558-8181-fc99998c775e,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f,
ee766b86-23a2-4ac4-9be6-c7304ee559e6
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:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34,
044b6095-ea66-4597-908c-f7ec712def61,
a5d3884b-bf19-409c-877a-f02390c78a6a,
7e9d3e58-e74b-4678-8d31-23260d1a9c08,
ac4662d3-42ee-44c9-8661-368baf63833f
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt", { create: true });
const stream = await fileHandle.createWritable();
await stream.write(secret);
await stream.close();
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt");
const file = await fileHandle.getFile();
return file.text();
} catch (e) {
throw new Error("Unsupported");
}
}
result, same first party: , , , ,
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt", { create: true });
const stream = await fileHandle.createWritable();
await stream.write(secret);
await stream.close();
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
try {
const root = await navigator.storage.getDirectory();
const fileHandle = await root.getFileHandle("secret.txt");
const file = await fileHandle.getFile();
return file.text();
} catch (e) {
throw new Error("Unsupported");
}
}
result, same first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different first party:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: 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:
75055c6f-aaf1-4209-9a57-7da8d1c561aa,
62d3a65f-d92f-4358-b36d-a7a9827719f7,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d,
8a8e631f-d912-47fd-a171-1f35d71c1f71,
3c5242f8-e968-4ec1-a309-8325d4e50ad2
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
ee71b06b-4d58-4df1-8e3b-d80fc7563652,
8c68c7ee-c632-4072-8551-cc017fa0ab3e,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3,
ed89c5d5-5284-434d-ab20-66f4068e19e1,
11a97175-8126-4d8f-929a-2bb60b0ac910
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d,
151c55c3-a19d-4907-8ca6-e7f81812d03d,
f8b802d7-0349-4ce7-82af-d414190aed74,
0293349f-276f-42ac-a23c-88a602d7a729,
ba795a10-c6e6-4e64-99cc-aa971ee054bf
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
b255b55d-66a6-483f-818d-063a523543c7,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5,
d482d374-5c74-404c-9bf7-a2c8664264eb,
9dd98fc2-e686-4ccd-add0-ac675161a750,
84a0a2a7-946b-49fb-9d49-0468e446f78d
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${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:
1b89445c-5926-4118-8658-017efc2b833c,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b,
4323e7c8-e0d5-4522-8c43-19ba80ce192d
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
51fe2eae-3539-48a0-b586-d3587498a793,
446c5e9c-0d16-48b6-8b25-05434242cf13,
57a65d33-a8e6-4558-8181-fc99998c775e,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f,
ee766b86-23a2-4ac4-9be6-c7304ee559e6
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${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:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34,
044b6095-ea66-4597-908c-f7ec712def61,
a5d3884b-bf19-409c-877a-f02390c78a6a,
7e9d3e58-e74b-4678-8d31-23260d1a9c08,
ac4662d3-42ee-44c9-8661-368baf63833f
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
47a37c68-eb39-4765-8686-ffe721bfeb14,
f8ec9174-550d-443b-aa57-09ffdaf3329c,
afd67c32-01ad-4959-b33a-06554baf552b,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc,
2abbfec8-5efe-4964-92d4-4c41dd9c5704
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${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:
ded93f3c-d854-4ed0-b2b1-e9ee70fe4469,
ce5f990e-f04b-448e-b94c-0d8d5d6e250d,
a94b8b4f-77c6-43c1-9789-0b248b4c8814,
13b17d06-b2e3-49b0-a719-9bdf05cce012
result, different first party: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
await fetch(`https://h1.privacytests2.org:8901/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h1.privacytests2.org:8901/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
75055c6f-aaf1-4209-9a57-7da8d1c561aa,
62d3a65f-d92f-4358-b36d-a7a9827719f7,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d,
8a8e631f-d912-47fd-a171-1f35d71c1f71,
3c5242f8-e968-4ec1-a309-8325d4e50ad2
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
H2 connection
HTTP/2 is a web connection protocol introduced in 2015. Some browsers re-use HTTP/2 connections across websites and can thus be used to track users.
| write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${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:
ee71b06b-4d58-4df1-8e3b-d80fc7563652,
8c68c7ee-c632-4072-8551-cc017fa0ab3e,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3,
ed89c5d5-5284-434d-ab20-66f4068e19e1,
11a97175-8126-4d8f-929a-2bb60b0ac910
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
c10611f1-27c2-45ff-84f1-5d04edd81a4d,
151c55c3-a19d-4907-8ca6-e7f81812d03d,
f8b802d7-0349-4ce7-82af-d414190aed74,
0293349f-276f-42ac-a23c-88a602d7a729,
ba795a10-c6e6-4e64-99cc-aa971ee054bf
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${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:
b255b55d-66a6-483f-818d-063a523543c7,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5,
d482d374-5c74-404c-9bf7-a2c8664264eb,
9dd98fc2-e686-4ccd-add0-ac675161a750,
84a0a2a7-946b-49fb-9d49-0468e446f78d
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
1b89445c-5926-4118-8658-017efc2b833c,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b,
4323e7c8-e0d5-4522-8c43-19ba80ce192d
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${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:
51fe2eae-3539-48a0-b586-d3587498a793,
446c5e9c-0d16-48b6-8b25-05434242cf13,
57a65d33-a8e6-4558-8181-fc99998c775e,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f,
ee766b86-23a2-4ac4-9be6-c7304ee559e6
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34,
044b6095-ea66-4597-908c-f7ec712def61,
a5d3884b-bf19-409c-877a-f02390c78a6a,
7e9d3e58-e74b-4678-8d31-23260d1a9c08,
ac4662d3-42ee-44c9-8661-368baf63833f
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${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:
47a37c68-eb39-4765-8686-ffe721bfeb14,
f8ec9174-550d-443b-aa57-09ffdaf3329c,
afd67c32-01ad-4959-b33a-06554baf552b,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc,
2abbfec8-5efe-4964-92d4-4c41dd9c5704
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=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
ded93f3c-d854-4ed0-b2b1-e9ee70fe4469,
ce5f990e-f04b-448e-b94c-0d8d5d6e250d,
a94b8b4f-77c6-43c1-9789-0b248b4c8814,
13b17d06-b2e3-49b0-a719-9bdf05cce012
result, different first party: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
await fetch(`https://h2.privacytests2.org:8902/?mode=write&secret=${secret}`, {cache: "no-store"});
}
read: async () => {
let response = await fetch(`https://h2.privacytests2.org:8902/?mode=read`, {cache: "no-store"});
return await response.text();
}
result, same first party:
75055c6f-aaf1-4209-9a57-7da8d1c561aa,
62d3a65f-d92f-4358-b36d-a7a9827719f7,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d,
8a8e631f-d912-47fd-a171-1f35d71c1f71,
3c5242f8-e968-4ec1-a309-8325d4e50ad2
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:
64d5e214d58978d4624e4945beb83083,
832f0b987063df7755c901755a78a334,
78cd9452f47753ad511d13c61465a1a4,
e8e66c8a245098bb023a2fafc974ffda,
ee6a39e64c281bd98dc87c86d7279599
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:
a33e0695d26a3a7b00df590e75f5afc1,
44e51176ca39112872726132b4230944,
c7a8229b3fb83ad4d5a3c2526973a7c0,
1a1c557713eb90c00048d7201a9d1f86,
826375d6953193b9d0aac47d7f8f1ad7
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: , 70570c5309d72de78326a1646e844c72, 2c7b46cc48a7418f0adefb7c09136d66, ad1b98150d1bde8f37014d14c1c75b0e, c18879d406f4b36192f5400f6c240095
result, different first party: , 0cb901c7baab3502dbd52656702b9512, 6c37c0ccd4d7da8eed606c25868aa509, f6d86e8ca32e9b21190e2e59c822f92d, 6ecfc0fb1b8b6a9dfe6e84f7793eedef
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:
481e6d613c4d6788cb0c00ac9747d39f,
bc0a7a16eb485c4a0ba27411d93f50ab,
65e93b8643dabe758dbf0d0b2510fe21,
1e1780083843c72654320ce4de8cb328,
result, different first party: , , , ,
unsupported: false, false, false, false, true
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:
ef8f0bcf60913c2adb8d30ea3454d827,
85aa7bc4a7078a5c86ed09a5f251897d,
10e004116269720b5644bf45177e4c46,
fb367ba7ae1468e9abee75fd0f8219ea,
7b2eedaa25a4d60de6e4a7c174458517
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:
90c6f46c7e446b95021f43a90745df1a,
6310a4d14c8df600c4fdb937160e582a,
957e967a962f57b87d9b0112395056bf,
a8dba751f1008d7d4f9ef43282a47f2d,
6c61fcd199d32d37b768a5a76bd95cc9
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: , 62de8e1e608780195c3a54088732f650, c73f866c40255a9dd4a14a795c0d2811, 47fb3930f6627edbac630a78079fcd53, c008480f56061f8d22f959e3ba9a78fb
result, different first party: , 2f841d20ed9b5b3e691fc1ca999184d0, bc8cec50fa1d7f829b59acbcae4fc677, ef11e8cbbe74ec423f19e91b8dd1b2fe, a6c7371268751ce347266eaee58c7011
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, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: async (secret) => {
// Ensure that we can switch over to h3 via alt-svc:
for (let i = 0; i<3; ++i) {
await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
await sleepMs(500);
}
// Are we now connecting over h3?
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`, {cache: "no-store"});
let text = await response.text();
// Empty response text indicates we are not connecting over h3:
if (text.trim() === "") {
throw new Error("Unsupported");
}
}
read: async () => {
let response = await fetch(`https://h3.privacytests2.org:4434/connection_id`);
return await response.text();
}
result, same first party:
802a7ced4903e55fdf6bd22e6e6fc78d,
eec31602d31b9714807bcda74e96d438,
de93e5e1e20488fd7c2c735dbeea5450,
144e5b5ee18237fa9f0618c875e82a7b,
ffc015881840547375ae874d0d540e95
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: 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: 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: 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 unsupported: , , , passed: true, true, true, true test failed: 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: 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: 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: null read: null result, same first party: , , , result, different first party: HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected, HTTPS used by default; no HSTS cache issue expected unsupported: , , , passed: true, true, true, true test failed: false, false, false, false |
write: 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
result, different first party: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
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: 2, 2, 2, 2, 2
result, different first party: 3, 3, 3, 3, 3
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 2, 2, 2, 2, 2
result, different first party: 3, 3, 3, 3, 3
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1
result, different first party: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
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:
ee71b06b-4d58-4df1-8e3b-d80fc7563652,
8c68c7ee-c632-4072-8551-cc017fa0ab3e,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3,
ed89c5d5-5284-434d-ab20-66f4068e19e1,
11a97175-8126-4d8f-929a-2bb60b0ac910
result, different first party:
Error: The user denied permission to access the database.,
Error: The user denied permission to access the database.,
Error: The user denied permission to access the database.,
Error: The user denied permission to access the database.,
Error: The user denied permission to access the database.
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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d,
151c55c3-a19d-4907-8ca6-e7f81812d03d,
f8b802d7-0349-4ce7-82af-d414190aed74,
0293349f-276f-42ac-a23c-88a602d7a729,
ba795a10-c6e6-4e64-99cc-aa971ee054bf
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:
b255b55d-66a6-483f-818d-063a523543c7,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5,
d482d374-5c74-404c-9bf7-a2c8664264eb,
9dd98fc2-e686-4ccd-add0-ac675161a750,
84a0a2a7-946b-49fb-9d49-0468e446f78d
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:
1b89445c-5926-4118-8658-017efc2b833c,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b,
4323e7c8-e0d5-4522-8c43-19ba80ce192d
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:
51fe2eae-3539-48a0-b586-d3587498a793,
446c5e9c-0d16-48b6-8b25-05434242cf13,
57a65d33-a8e6-4558-8181-fc99998c775e,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f,
ee766b86-23a2-4ac4-9be6-c7304ee559e6
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:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34,
044b6095-ea66-4597-908c-f7ec712def61,
a5d3884b-bf19-409c-877a-f02390c78a6a,
7e9d3e58-e74b-4678-8d31-23260d1a9c08,
ac4662d3-42ee-44c9-8661-368baf63833f
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:
47a37c68-eb39-4765-8686-ffe721bfeb14,
f8ec9174-550d-443b-aa57-09ffdaf3329c,
afd67c32-01ad-4959-b33a-06554baf552b,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc,
2abbfec8-5efe-4964-92d4-4c41dd9c5704
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:
ded93f3c-d854-4ed0-b2b1-e9ee70fe4469,
ce5f990e-f04b-448e-b94c-0d8d5d6e250d,
a94b8b4f-77c6-43c1-9789-0b248b4c8814,
13b17d06-b2e3-49b0-a719-9bdf05cce012
result, different first party:
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
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same first party:
75055c6f-aaf1-4209-9a57-7da8d1c561aa,
62d3a65f-d92f-4358-b36d-a7a9827719f7,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d,
8a8e631f-d912-47fd-a171-1f35d71c1f71,
3c5242f8-e968-4ec1-a309-8325d4e50ad2
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:
ee71b06b-4d58-4df1-8e3b-d80fc7563652,
8c68c7ee-c632-4072-8551-cc017fa0ab3e,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3,
ed89c5d5-5284-434d-ab20-66f4068e19e1,
11a97175-8126-4d8f-929a-2bb60b0ac910
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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d,
151c55c3-a19d-4907-8ca6-e7f81812d03d,
f8b802d7-0349-4ce7-82af-d414190aed74,
0293349f-276f-42ac-a23c-88a602d7a729,
ba795a10-c6e6-4e64-99cc-aa971ee054bf
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:
b255b55d-66a6-483f-818d-063a523543c7,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5,
d482d374-5c74-404c-9bf7-a2c8664264eb,
9dd98fc2-e686-4ccd-add0-ac675161a750,
84a0a2a7-946b-49fb-9d49-0468e446f78d
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:
1b89445c-5926-4118-8658-017efc2b833c,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b,
4323e7c8-e0d5-4522-8c43-19ba80ce192d
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:
51fe2eae-3539-48a0-b586-d3587498a793,
446c5e9c-0d16-48b6-8b25-05434242cf13,
57a65d33-a8e6-4558-8181-fc99998c775e,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f,
ee766b86-23a2-4ac4-9be6-c7304ee559e6
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:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34,
044b6095-ea66-4597-908c-f7ec712def61,
a5d3884b-bf19-409c-877a-f02390c78a6a,
7e9d3e58-e74b-4678-8d31-23260d1a9c08,
ac4662d3-42ee-44c9-8661-368baf63833f
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:
47a37c68-eb39-4765-8686-ffe721bfeb14,
f8ec9174-550d-443b-aa57-09ffdaf3329c,
afd67c32-01ad-4959-b33a-06554baf552b,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc,
2abbfec8-5efe-4964-92d4-4c41dd9c5704
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:
ded93f3c-d854-4ed0-b2b1-e9ee70fe4469,
ce5f990e-f04b-448e-b94c-0d8d5d6e250d,
a94b8b4f-77c6-43c1-9789-0b248b4c8814,
13b17d06-b2e3-49b0-a719-9bdf05cce012
result, different first party:
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
passed: true, true, true, true
test failed: false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same first party:
75055c6f-aaf1-4209-9a57-7da8d1c561aa,
62d3a65f-d92f-4358-b36d-a7a9827719f7,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d,
8a8e631f-d912-47fd-a171-1f35d71c1f71,
3c5242f8-e968-4ec1-a309-8325d4e50ad2
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:
ee71b06b-4d58-4df1-8e3b-d80fc7563652,
8c68c7ee-c632-4072-8551-cc017fa0ab3e,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3,
ed89c5d5-5284-434d-ab20-66f4068e19e1,
11a97175-8126-4d8f-929a-2bb60b0ac910
result, different first party:
Error: The request was denied.,
Error: The request was denied.,
Error: The request was denied.,
Error: The request was denied.,
Error: The request was denied.
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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d,
151c55c3-a19d-4907-8ca6-e7f81812d03d,
f8b802d7-0349-4ce7-82af-d414190aed74,
0293349f-276f-42ac-a23c-88a602d7a729,
ba795a10-c6e6-4e64-99cc-aa971ee054bf
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:
b255b55d-66a6-483f-818d-063a523543c7,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5,
d482d374-5c74-404c-9bf7-a2c8664264eb,
9dd98fc2-e686-4ccd-add0-ac675161a750,
84a0a2a7-946b-49fb-9d49-0468e446f78d
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:
1b89445c-5926-4118-8658-017efc2b833c,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b,
4323e7c8-e0d5-4522-8c43-19ba80ce192d
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:
51fe2eae-3539-48a0-b586-d3587498a793,
446c5e9c-0d16-48b6-8b25-05434242cf13,
57a65d33-a8e6-4558-8181-fc99998c775e,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f,
ee766b86-23a2-4ac4-9be6-c7304ee559e6
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:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34,
044b6095-ea66-4597-908c-f7ec712def61,
a5d3884b-bf19-409c-877a-f02390c78a6a,
7e9d3e58-e74b-4678-8d31-23260d1a9c08,
ac4662d3-42ee-44c9-8661-368baf63833f
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:
47a37c68-eb39-4765-8686-ffe721bfeb14,
f8ec9174-550d-443b-aa57-09ffdaf3329c,
afd67c32-01ad-4959-b33a-06554baf552b,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc,
2abbfec8-5efe-4964-92d4-4c41dd9c5704
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:
ded93f3c-d854-4ed0-b2b1-e9ee70fe4469,
ce5f990e-f04b-448e-b94c-0d8d5d6e250d,
a94b8b4f-77c6-43c1-9789-0b248b4c8814,
13b17d06-b2e3-49b0-a719-9bdf05cce012
result, different first party:
Error: LockManager.query: query() is not allowed in this context,
Error: LockManager.query: query() is not allowed in this context,
Error: LockManager.query: query() is not allowed in this context,
Error: LockManager.query: query() is not allowed in this context
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
if (navigator.locks) {
navigator.locks.request(key, lock => new Promise((f,r) => {}));
let queryResult = await navigator.locks.query();
return queryResult.held[0].clientId;
} else {
throw new Error("Unsupported");
}
}
read: async () => {
if (navigator.locks) {
let queryResult = await navigator.locks.query();
return queryResult.held[0].name;
}
}
result, same first party:
75055c6f-aaf1-4209-9a57-7da8d1c561aa,
62d3a65f-d92f-4358-b36d-a7a9827719f7,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d,
8a8e631f-d912-47fd-a171-1f35d71c1f71,
3c5242f8-e968-4ec1-a309-8325d4e50ad2
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:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
result, different first party:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
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
result, different first party:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same first party: 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:
Error: Failed to register a ServiceWorker for scope ('https://test-pages.privacytests2.org/') with script ('https://test-pages.privacytests2.org/serviceWorker.js'): The user denied permission to use Service Worker.,
Error: Failed to register a ServiceWorker for scope ('https://test-pages.privacytests2.org/') with script ('https://test-pages.privacytests2.org/serviceWorker.js'): The user denied permission to use Service Worker.,
Error: Failed to register a ServiceWorker for scope ('https://test-pages.privacytests2.org/') with script ('https://test-pages.privacytests2.org/serviceWorker.js'): The user denied permission to use Service Worker.,
Error: Failed to register a ServiceWorker for scope ('https://test-pages.privacytests2.org/') with script ('https://test-pages.privacytests2.org/serviceWorker.js'): The user denied permission to use Service Worker.,
Error: Failed to register a ServiceWorker for scope ('https://test-pages.privacytests2.org/') with script ('https://test-pages.privacytests2.org/serviceWorker.js'): The user denied permission to use Service Worker.
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:
<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:
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
,
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx/1.18.0 (Ubuntu)</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
console.log("trying to register the serviceworker now...");
const registration = await Promise.race([
navigator.serviceWorker.register('serviceWorker.js'),
sleepMs(500)
]);
if (registration === undefined) {
// We timed out or otherwise failed.
throw new Error("ServiceWorker registration failed");
}
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party: , , , ,
result, different first party: , , , ,
unsupported: false, false, false, false, false
passed: undefined
test failed: true, true, true, true, true
|
write: async (key) => {
if (!navigator.serviceWorker) {
throw new Error("Unsupported");
}
let registration = await navigator.serviceWorker.register(
'serviceWorker.js');
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
await fetch(`serviceworker-write?secret=${key}`);
}
read: async () => {
console.log("trying to register the serviceworker now...");
const registration = await Promise.race([
navigator.serviceWorker.register('serviceWorker.js'),
sleepMs(500)
]);
if (registration === undefined) {
// We timed out or otherwise failed.
throw new Error("ServiceWorker registration failed");
}
console.log(registration);
await navigator.serviceWorker.ready;
console.log("service worker ready");
await sleepMs(100);
let response = await fetch("serviceworker-read");
return await response.text();
}
result, same first party:
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined,
Error: navigator.serviceWorker is undefined
result, different first party:
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
passed: undefined
test failed: 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:
ee71b06b-4d58-4df1-8e3b-d80fc7563652,
8c68c7ee-c632-4072-8551-cc017fa0ab3e,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3,
ed89c5d5-5284-434d-ab20-66f4068e19e1,
11a97175-8126-4d8f-929a-2bb60b0ac910
result, different first party:
Error: no SharedWorker message received,
Error: no SharedWorker message received,
Error: no SharedWorker message received,
Error: no SharedWorker message received,
Error: no SharedWorker message received
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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d,
151c55c3-a19d-4907-8ca6-e7f81812d03d,
f8b802d7-0349-4ce7-82af-d414190aed74,
0293349f-276f-42ac-a23c-88a602d7a729,
ba795a10-c6e6-4e64-99cc-aa971ee054bf
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:
b255b55d-66a6-483f-818d-063a523543c7,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5,
d482d374-5c74-404c-9bf7-a2c8664264eb,
9dd98fc2-e686-4ccd-add0-ac675161a750,
84a0a2a7-946b-49fb-9d49-0468e446f78d
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:
1b89445c-5926-4118-8658-017efc2b833c,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b,
4323e7c8-e0d5-4522-8c43-19ba80ce192d
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:
51fe2eae-3539-48a0-b586-d3587498a793,
446c5e9c-0d16-48b6-8b25-05434242cf13,
57a65d33-a8e6-4558-8181-fc99998c775e,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f,
ee766b86-23a2-4ac4-9be6-c7304ee559e6
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:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34,
044b6095-ea66-4597-908c-f7ec712def61,
a5d3884b-bf19-409c-877a-f02390c78a6a,
7e9d3e58-e74b-4678-8d31-23260d1a9c08,
ac4662d3-42ee-44c9-8661-368baf63833f
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:
47a37c68-eb39-4765-8686-ffe721bfeb14,
f8ec9174-550d-443b-aa57-09ffdaf3329c,
afd67c32-01ad-4959-b33a-06554baf552b,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc,
2abbfec8-5efe-4964-92d4-4c41dd9c5704
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:
ded93f3c-d854-4ed0-b2b1-e9ee70fe4469,
ce5f990e-f04b-448e-b94c-0d8d5d6e250d,
a94b8b4f-77c6-43c1-9789-0b248b4c8814,
13b17d06-b2e3-49b0-a719-9bdf05cce012
result, different first party:
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
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
try {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
// console.log("worker", worker);
const messagePromise = new Promise((resolve) => {
worker.port.onmessage = (e) => resolve(e.data);
});
worker.port.postMessage(secret);
await messagePromise;
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let worker = new SharedWorker("supercookies_sharedworker.js");
worker.port.start();
const messagePromise = new Promise((resolve, reject) => {
worker.port.onmessage = (e) => resolve(e.data);
setTimeout(() => reject(new Error("no SharedWorker message received")), 200);
});
worker.port.postMessage("request");
const message = await messagePromise;
if (message === "none") {
throw new Error("Unsupported");
}
return message;
}
result, same first party:
75055c6f-aaf1-4209-9a57-7da8d1c561aa,
62d3a65f-d92f-4358-b36d-a7a9827719f7,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d,
8a8e631f-d912-47fd-a171-1f35d71c1f71,
3c5242f8-e968-4ec1-a309-8325d4e50ad2
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:
20552fa8e4f7a70d022d7d106b3d2d2a2f3f57ce952b3b72c0cff3836c1df133,
c0ff366f17f48459d5bb34994dc0f1183e28c109c34233e4d45113b7d1e8a378,
1e92f7abcddd7f55ad54d39d7957e6368a0b56abb0e1290d1eb6c759ccb6fe60,
46b2df22ad09432d882155b801d9d99ef83eaf254886f812bbe04724d026b607,
a9519b4a88d5d82a367e31bbbf8f6d07d9cb44b1d9568c671bff69a8eccffac1
result, different first party:
093f0fa980b7e9c9c8873cafe8cdf98b2a2f82aef541472f36dbbcb1d1b2b3df,
8fa4e93148af797e8528d419888b2f0a03c2c840db4a41e4fec492b7484bee54,
bd987d26b6ae4c4cc80edb9dc1898dde0a0de4b8dc2539ef84eb126f2f15d226,
aae9bb5264f381f5dc1458e5a9912e8d33d3cd01596e02d6e53e30bfdbcd9ab3,
952f3dc1cd2fa66ed1019cd0f91018ccb2d6a83f6219ee6c1c6f34f619df9ac6
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:
8b5ec8ef8ef548776b730e162640e4b173a6107e7fc48d01ebf8b725d21b7fcc,
067539dba154182850765568dfb09d656a1781a22340d71effaea063928725bb,
839b34f76d0040b0215fbd6e90026f7102eba06cba75619be9f98b88281fc5e3,
607f6a7c69e17243313a93a0dd52531ae00177dfd1e1495e050d8c9cfad0a0cf,
0a1ba959789d13df1d8df707c003196ba777d4e82c18c26a4d6e0b9d3631d429
result, different first party:
31877eceac250af1f3e168845c7e96e1d20b4a07f15aba4533a921a6e773f0cb,
6a1c49b0081e69ea152db511fa8759cb1377815c3257245b65209c20bb2b9b6f,
70cfcc4df4bb6c09138e1b69eab16f06f5a3d939ce3b82bb5e7b948e17b70445,
2a5e1cb274c901de21d7e93c1c512e2f51d4a3c4d85bd15da68c84414084ff60,
b03f4ef17f2921d23774f48ab9e68c6bda849078941409a1783451b5f5457c90
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:
d3a915e7b61024d07687b4ec0f78675e3d869951bd2e72390b9da0dc663445c7,
6a77760a76668313652287bbe949b5cfc0d2eb6d508a43347076af469ca2964e,
7eff584499431a62b3efc8c7bcbff4f92d94a2bbd6995ab2a6cf986c747882be,
c2396d170c5f8f88b720af6b8e3181181b874c9bde07585061ad44002adca36e,
8d6bb73bd02566aef131347178fdd76a16cb17268b94a6ebd2f18a2f890301cd
result, different first party:
a21c71888269a6a1464b1a618f085c547e3c61e09a5764c7f862551d4760be7e,
109ee4e7eacee5bae6c545299409710f6a5c6a4eb11575c23bcf37c2019ba339,
573a113c60c17f72f29e1a6a2a26f5502043b79ab83c41003b50226241b59ef0,
1fb27bb03e97d04dfc8f6a8f603a1abfbe77a4b81694b8a49b4093be03aba846,
6a184595dcbaa7d97a0e4cb723ac20d5f576fee7e7e3b8ba93f521cc304fe223
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:
dde58539a7c0d2624825d919c07e4ebd504628c919a6c5a61afe3a792ef2913b,
d7f5abda1b1ff3642dd59a6552a49bcbd9f3c8146ac9671a4c69056c3e439869,
a7fe0aec170c26a56d11a8c04974450e3917ad9d055967d83b777d4f85be4f5e,
9344feedd591d164bfc3b2d7cd53d7dd300fd75cc209d270571765d8c3b366f7,
acb08053a8b763fe513300c59fc1fa8bd45abf88a98178d40d5a9dfb33b3cc0b
result, different first party:
59436055e18414e7272696dd09f541a53be10e4566ab62e7c715aeaf673fe9c1,
2faeddecdc2326b1087fb31623e614cf00a307b5cdbdfb804b5b09455bbe4e49,
557e1f11941b00352c0cfc0ec4fc1c6a9eea9d990c992b9c9d9ca6ec7763e26a,
f2fc059b2dce84fe8f5e692b8c5336ddd033f2d20dbcdd7d3172408505ef7e92,
f79e12808929d1f570f31f50686d68d0e6317d82da3320fe96d0588601c67b08
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:
8f84aac6af5efff4d5f01e69266dc8d56ce35c8ce3d4d452b5955faa9e59639f,
b27f7f859d55927e1061d694140c784b28d746c22ab6b7a4e0e29f89874b6b43,
e4576cdceb712a1a5c7648ee8974cc7143802b039b9271f1adb8e561f1e6670a,
d0a65a1e8b83b067f3680660d58cf65d3568c13e7b692e67ebc5ce538fa5d875,
4fbe5f06578b327c6f0f7787526e209dc305957bcccbdce866c38272b718be97
result, different first party:
96db189ea1df8d37868b5deffce6aafc5f36cfee8ebce2a29f7ae4b76e9dbc37,
e5d30686d8f0c07f4e5f2b4e3ee2dd6b703dcabc89acaa42bddc74925dcb6785,
e14049ff50f61d6c8ba0777941e3ac71a38b7299f22bd6a3c39d6715ef895d02,
44ef7b34d28c777cae8223188712644e15a627c26b68720454211f44f600892f,
e1e43193bd64b6ad765c3d0fc891ddfb07ffe6deaa6b2d571d37897cbae43c7a
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:
7e728ed85cd610cf1b60faafa1576431005dff30b326ac69b0e8b45364dafb29,
129d3b83ffdc8831e393720eb550399333fb73e1dc09a527004fbf870c891de9,
c20842c646e47520a5cd96e99fd420fc873b97c534d8a8e08a82a64beaec5a5b,
496bd509090aa4c935a72e9c3f42c3e7158009f5397893286d1e4a7d4318b20e,
ba98a6c1abd2d70b4955b5acae2409992d8c7a6fa7763b92c5f1fc6c64459c17
result, different first party:
120bb760173a92475cb0a7e8993a6588d0ba62a9c684098727b72964ae3ea8d9,
ed04475996c14f3f9932599a46ad17e018a86fcc6696aec08f9d83ec75fa0007,
29befb8f1c369306f1fe9dc776ba7504456c84a83d6b1a68e33c952ee9cdf55f,
4a6b9ac0af737e7842d959d7a0464e2147489a14849b561a20526c873e179a29,
645e4cfba44fc5df519c709f4818aee2aeca23c89f2a30eb5ee807d0968d091d
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:
9a2659240dd12bcf3a7aa70c576cd866e21ec68d2fe7beed16c6893037d2fbdf,
8020151a8098a1dee20f4d60b332130f0fc685a1e754a3f19f5495cc77c9394c,
e230f5175ad6083f3502aa5f5fc29541045dd002b80c5e8e6d59b428e4e07371,
559f8287b6d7a4d9b44e33aa5a7162ad3dafa550fee212ea2c0b18b3b8d1cd1f,
238bf3bdd80f5d5bc6d28aac7431cf6ff1d88f6eaf0b820fd96bedeada3ed8de
result, different first party:
0f50cd264d7687386f3dfe9060ec5a991a4362edc5200331fca7a81769836a08,
000f59a592137ccad299d3fa568178213119cab688e3f53f776977fa9dce4497,
f36b573c9711e7d6ac8ac74cce50f61de29b6dffdaed57c139bbcefea79d9239,
020d5dfb00b800b6d6396ed4a78ed0a685ef4de57050e3b34f3d5e4a422ff3bd,
5b9f90e1fe77a20932b6cc41759d3140c37203995320afa529e9b184b3a75eaf
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:
7519b90fad3dc1df3b8fa444ee466e0bfb2950e8752882a6ed756a31b3d9d2e6,
f176322b235932c21b473a5ab57afd3bf0a32e6fb3f61a766e2eb28314281311,
9618a19c5bc8402db6c9b6c7da3c9ed43b7f9387c0bdec9d036256ac290a1901,
f602296b0c6172c8a5de817032986393f9537986dbfde14fe790a0bafd4ea6fc
result, different first party:
409e9a521b1a91883b36cf6d7aa790b0b69ef0c4c921c8a50c05da07347ae7a5,
ec1d0d53e4f93219acd6065f8ba478e0cd7f98dc107384b10f7dc4cd05625969,
1a8aafb1eccc2b3a4561dd8a6d17f3891cd2c869600a9e9da0fc51f2788e2074,
f5ce9d4c623cfdaab850f9e66c6ed0de6f68a6d18101777bf04400658e079b46
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
read: async () => {
let results = await fetch("https://tls.privacytests2.org:8900/");
return (await results.json()).sessionId;
}
result, same first party:
bd63641e5ecb57ea4d1efd3cf28ec1358c8b0b83ab956b515307951c0a6b8cb4,
e5905d670f612952a83e3b1b038b64227da3a99043874dc9669583e44da5a5fd,
8c690812d5fcfbe2e3a7e6a4c4dd720a14b9a487a29122b93f2a3b554f299e4e,
3c5c1946ff09b821e53d953aefacf4de3dfd0f3ed08e3afbc503b5edab8514cf,
2de2e6b9e7962c7b4c3b82eb1346cbf239981105a86bd26d07b7382b84286c32
result, different first party:
7cb5881a808966d7b5b9b9679c28f404675d96c37dbf9c4ed10ddee96fd1ffed,
76ae4d161f2d107bf028cb16c65ec3e309b8149f4cd7a93390d9e8f37564c8a6,
3f43001fe16d85e6c8bb9bb87a41ecdd6b1f330fe9250358b5a921c958eca00b,
09ee6d3ec3abca3510097b759de295ee1ffc31a35b155f63acdf2b62936e143c,
7923ef6bcccf6a8dd79bcb8f0df341d92a27dbfe315a76a77c78e17ba0b646bb
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
Web SQL Database
The Web SQL Database is a deprecated web API for storing data in an SQL database.
| write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different first party:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: false, false, false, false, false
passed: undefined
test failed: true, true, true, true, true
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different first party:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: false, false, false, false, false
passed: undefined
test failed: true, true, true, true, true
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party:
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated
result, different first party:
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated
unsupported: false, false, false, false, false
passed: undefined
test failed: true, true, true, true, true
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different first party:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: false, false, false, false, false
passed: undefined
test failed: true, true, true, true, true
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different first party:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: false, false, false, false, false
passed: undefined
test failed: true, true, true, true, true
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different first party:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: false, false, false, false, false
passed: undefined
test failed: true, true, true, true, true
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party:
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated
result, different first party:
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated
unsupported: false, false, false, false, false
passed: undefined
test failed: true, true, true, true, true
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different first party:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: false, false, false, false
passed: undefined
test failed: true, true, true, true
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same first party:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different first party:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: false, false, false, false, false
passed: undefined
test failed: true, true, true, true, true
|
|
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: 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) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1
result, different first party: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same first party: 1, 1, 1, 1, 1
result, different first party: 2, 2, 2, 2, 2
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
|
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/
result, different first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
unsupported: false, false, false, false
passed: false, false, false, false
test failed: false, false, false, false
|
write: (secret) => { /* do nothing */ }
read: () => document.referrer
result, same first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
result, different first party:
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/,
https://test-pages.privacytests2.org/
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
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:
ee71b06b-4d58-4df1-8e3b-d80fc7563652,
8c68c7ee-c632-4072-8551-cc017fa0ab3e,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3,
ed89c5d5-5284-434d-ab20-66f4068e19e1,
11a97175-8126-4d8f-929a-2bb60b0ac910
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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d,
151c55c3-a19d-4907-8ca6-e7f81812d03d,
f8b802d7-0349-4ce7-82af-d414190aed74,
0293349f-276f-42ac-a23c-88a602d7a729,
ba795a10-c6e6-4e64-99cc-aa971ee054bf
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:
b255b55d-66a6-483f-818d-063a523543c7,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5,
d482d374-5c74-404c-9bf7-a2c8664264eb,
9dd98fc2-e686-4ccd-add0-ac675161a750,
84a0a2a7-946b-49fb-9d49-0468e446f78d
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:
1b89445c-5926-4118-8658-017efc2b833c,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b,
4323e7c8-e0d5-4522-8c43-19ba80ce192d
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:
51fe2eae-3539-48a0-b586-d3587498a793,
446c5e9c-0d16-48b6-8b25-05434242cf13,
57a65d33-a8e6-4558-8181-fc99998c775e,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f,
ee766b86-23a2-4ac4-9be6-c7304ee559e6
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:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34,
044b6095-ea66-4597-908c-f7ec712def61,
a5d3884b-bf19-409c-877a-f02390c78a6a,
7e9d3e58-e74b-4678-8d31-23260d1a9c08,
ac4662d3-42ee-44c9-8661-368baf63833f
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:
47a37c68-eb39-4765-8686-ffe721bfeb14,
f8ec9174-550d-443b-aa57-09ffdaf3329c,
afd67c32-01ad-4959-b33a-06554baf552b,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc,
2abbfec8-5efe-4964-92d4-4c41dd9c5704
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:
ded93f3c-d854-4ed0-b2b1-e9ee70fe4469,
ce5f990e-f04b-448e-b94c-0d8d5d6e250d,
a94b8b4f-77c6-43c1-9789-0b248b4c8814,
13b17d06-b2e3-49b0-a719-9bdf05cce012
result, different first party: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (secret) => sessionStorage.setItem("secret", secret)
read: () => sessionStorage.getItem("secret")
result, same first party:
75055c6f-aaf1-4209-9a57-7da8d1c561aa,
62d3a65f-d92f-4358-b36d-a7a9827719f7,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d,
8a8e631f-d912-47fd-a171-1f35d71c1f71,
3c5242f8-e968-4ec1-a309-8325d4e50ad2
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_ee71b06b-4d58-4df1-8e3b-d80fc7563652, name_8c68c7ee-c632-4072-8551-cc017fa0ab3e, name_4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3, name_ed89c5d5-5284-434d-ab20-66f4068e19e1, name_11a97175-8126-4d8f-929a-2bb60b0ac910 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_c10611f1-27c2-45ff-84f1-5d04edd81a4d, name_151c55c3-a19d-4907-8ca6-e7f81812d03d, name_f8b802d7-0349-4ce7-82af-d414190aed74, name_0293349f-276f-42ac-a23c-88a602d7a729, name_ba795a10-c6e6-4e64-99cc-aa971ee054bf result, different first party: name_c10611f1-27c2-45ff-84f1-5d04edd81a4d, name_151c55c3-a19d-4907-8ca6-e7f81812d03d, name_f8b802d7-0349-4ce7-82af-d414190aed74, name_0293349f-276f-42ac-a23c-88a602d7a729, name_ba795a10-c6e6-4e64-99cc-aa971ee054bf 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_b255b55d-66a6-483f-818d-063a523543c7, name_40c45b86-4b7f-4b24-9d52-d7bb046eb5f5, name_d482d374-5c74-404c-9bf7-a2c8664264eb, name_9dd98fc2-e686-4ccd-add0-ac675161a750, name_84a0a2a7-946b-49fb-9d49-0468e446f78d 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_1b89445c-5926-4118-8658-017efc2b833c, name_e443ac1d-ddd6-4a4b-83e8-79aa37396cf7, name_3b7f5f7d-8201-47eb-bcc2-11d15059b0c8, name_f0d2f54b-3e66-44e1-8ee5-4502bf13411b, name_4323e7c8-e0d5-4522-8c43-19ba80ce192d result, different first party: name_1b89445c-5926-4118-8658-017efc2b833c, name_e443ac1d-ddd6-4a4b-83e8-79aa37396cf7, name_3b7f5f7d-8201-47eb-bcc2-11d15059b0c8, name_f0d2f54b-3e66-44e1-8ee5-4502bf13411b, name_4323e7c8-e0d5-4522-8c43-19ba80ce192d 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_51fe2eae-3539-48a0-b586-d3587498a793, name_446c5e9c-0d16-48b6-8b25-05434242cf13, name_57a65d33-a8e6-4558-8181-fc99998c775e, name_c5d8009d-8e0e-473d-b2c6-8461c4f52a0f, name_ee766b86-23a2-4ac4-9be6-c7304ee559e6 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_3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34, name_044b6095-ea66-4597-908c-f7ec712def61, name_a5d3884b-bf19-409c-877a-f02390c78a6a, name_7e9d3e58-e74b-4678-8d31-23260d1a9c08, name_ac4662d3-42ee-44c9-8661-368baf63833f result, different first party: name_3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34, name_044b6095-ea66-4597-908c-f7ec712def61, name_a5d3884b-bf19-409c-877a-f02390c78a6a, name_7e9d3e58-e74b-4678-8d31-23260d1a9c08, name_ac4662d3-42ee-44c9-8661-368baf63833f 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_47a37c68-eb39-4765-8686-ffe721bfeb14, name_f8ec9174-550d-443b-aa57-09ffdaf3329c, name_afd67c32-01ad-4959-b33a-06554baf552b, name_2d5cc1b7-feff-44c8-9785-55e1c66fadbc, name_2abbfec8-5efe-4964-92d4-4c41dd9c5704 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_ded93f3c-d854-4ed0-b2b1-e9ee70fe4469, name_ce5f990e-f04b-448e-b94c-0d8d5d6e250d, name_a94b8b4f-77c6-43c1-9789-0b248b4c8814, name_13b17d06-b2e3-49b0-a719-9bdf05cce012 result, different first party: , , , unsupported: false, false, false, false passed: true, true, true, true test failed: false, false, false, false |
write: (secret) => window.name = "name_" + secret read: () => window.name result, same first party: name_75055c6f-aaf1-4209-9a57-7da8d1c561aa, name_62d3a65f-d92f-4358-b36d-a7a9827719f7, name_e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d, name_8a8e631f-d912-47fd-a171-1f35d71c1f71, name_3c5242f8-e968-4ec1-a309-8325d4e50ad2 result, different first party: name_75055c6f-aaf1-4209-9a57-7da8d1c561aa, name_62d3a65f-d92f-4358-b36d-a7a9827719f7, name_e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d, name_8a8e631f-d912-47fd-a171-1f35d71c1f71, name_3c5242f8-e968-4ec1-a309-8325d4e50ad2 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: 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 result: 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 |
|
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: false,false,false,false,false passed: false,false,false,false,false |
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: false,false,false,false,false passed: false,false,false,false,false |
upgraded: true,true,true,true passed: 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: false,false,false,false,false passed: false,false,false,false,false |
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: false,false,false,false,false passed: false,false,false,false,false |
upgraded: true,true,true,true passed: 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: false,false,false,false,false result: loaded insecurely,loaded insecurely,loaded insecurely,loaded insecurely,loaded insecurely |
passed: true,true,true,true,true result: upgraded,upgraded,upgraded,upgraded,upgraded |
passed: true,true,true,true,true result: upgraded,upgraded,upgraded,upgraded,upgraded |
passed: true,true,true,true,true result: upgraded,upgraded,upgraded,upgraded,upgraded |
passed: false,false,false,false,false result: loaded insecurely,loaded insecurely,loaded insecurely,loaded insecurely,loaded insecurely |
passed: true,true,true,true result: 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: 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 result: upgraded,upgraded,upgraded,upgraded |
passed: true,true,true,true,true result: blocked,blocked,blocked,blocked,blocked |
|
Misc testsWhich browsers provide additional assorted privacy protections?
This category includes tests for the presence of miscellaneous privacy features
| |||||||||
|
ECH enabled
Encrypted Client Hello (ECH) is a new protocol that hides the website you are visiting from third-party network eavesdroppers.
| SNI_status: encrypted passed: true,true,true,true,true |
SNI_status: encrypted passed: true,true,true,true,true |
SNI_status: 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: encrypted passed: true,true,true,true,true |
SNI_status: plaintext passed: false,false,false,false,false |
SNI_status: plaintext passed: false,false,false,false |
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 |
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 |
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: true,true,true,true |
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: false,false,false,false
readSameFirstParty: 2a0b:f4c2:2::40,2a0b:f4c2:1::1,82.221.128.191,45.138.16.240
readDifferentFirstParty: 2a0b:f4c2:2::52,2a0b:f4c0:16c:2::1,2001:67c:6ec:203:192:42:116:177,2001:67c:6ec:203:192:42:116:175
passed: true,true,true,true
testFailed: false,false,false,false
|
write: () => {
if (!usingTor) {
throw new Error("Unsupported");
}
}
read: async () => {
if (usingTor) {
return ipAddress;
} else {
throw new Error("Unsupported");
}
}
unsupported: true,true,true,true,true
readSameFirstParty: Error: Unsupported,Error: Unsupported,Error: Unsupported,Error: Unsupported,Error: Unsupported
readDifferentFirstParty: Error: Unsupported,Error: Unsupported,Error: Unsupported,Error: Unsupported,Error: Unsupported
testFailed: false,false,false,false,false
|
|
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: true,true,true,true passed: true,true,true,true |
IsTorExit: false,false,false,false,false passed: false,false,false,false,false |
|
Fingerprinting resistance testsWhich browsers hide what's unique about your device?
Fingerprinting is a technique trackers use to uniquely identify you as you browse the web. A fingerprinting script will measure several characteristics of your browser and, combining this data, will build a fingerprint that may uniquely identify you among web users. Browsers can introduce countermeasures, such as minimizing the distinguishing information disclosed by certain web APIs so your browser is harder to pick out from the crowd (so-called 'fingerprinting resistance').`,
| |||||||||
|
Media query screen height
Height of the user's screen in pixels.
| expression: undefined desired expression: undefined actual value: 1281,1288,1287,1286,1288 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: 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 desired value: undefined passed: 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 |
|
Media query screen width
Width of the user's screen in pixels.
| expression: undefined desired expression: undefined actual value: 1157,1164,1162,1159,1157 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: 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: 1400,1400,1400,1400 desired value: undefined passed: 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 |
|
outerHeight
Height of the browser window in pixels, including browser chrome.
| expression: outerHeight desired expression: undefined actual value: 1281,1288,1287,1286,1288 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: 703,703,703,703,703 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: 1040,1040,1040,1040,1040 desired value: undefined passed: false,false,false,false,false |
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: 940,940,940,940,940 desired value: undefined passed: false,false,false,false,false |
expression: outerHeight desired expression: undefined actual value: 900,900,900,900 desired value: undefined passed: true,true,true,true |
expression: outerHeight desired expression: undefined actual value: 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: 1281,1288,1287,1286,1288 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: 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 desired value: undefined passed: 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 |
|
screen.width
Width of the user's screen, in pixels.
| expression: screen.width desired expression: undefined actual value: 1157,1164,1162,1159,1157 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: 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: 1400,1400,1400,1400 desired value: undefined passed: 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 |
|
screenX
Position, in pixels, of the left edge of the browser window on screen.
| expression: screenX desired expression: undefined actual value: 0,5,5,5,8 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: 0,0,0,0,0 desired value: undefined passed: true,true,true,true,true |
expression: screenX desired expression: undefined actual value: 22,22,22,22,22 desired value: undefined passed: false,false,false,false,false |
expression: screenX desired expression: undefined actual value: 4,4,4,4,4 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: 340,340,340,340,340 desired value: undefined passed: false,false,false,false,false |
expression: screenX desired expression: undefined actual value: 0,0,0,0 desired value: undefined passed: true,true,true,true |
expression: screenX desired expression: undefined actual value: 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: 6,4,8,5,5 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: 1440,1440,1440,1440,1440 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: 202,202,202,202,202 desired value: undefined passed: false,false,false,false,false |
expression: screenY desired expression: undefined actual value: 500,500,500,500,500 desired value: undefined passed: false,false,false,false,false |
expression: screenY desired expression: undefined actual value: 0,0,0,0 desired value: undefined passed: true,true,true,true |
expression: screenY desired expression: undefined actual value: 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: 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 |
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: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
__hssc
HubSpot tracking parameter
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
__hstc
HubSpot tracking parameter
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
__s
Drip.com email address tracking parameter
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
_hsenc
HubSpot tracking parameter
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
_openstat
Yandex tracking parameter
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
dclid
DoubleClick Click ID (Google)
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
fbclid
Facebook Click Identifier
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
gclid
Google Click Identifier
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
hsCtaTracking
HubSpot tracking parameter
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
mc_eid
Mailchimp Email ID (email recipient's address)
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
mkt_tok
Adobe Marketo tracking parameter
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
ml_subscriber
MailerLite email tracking
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
|
ml_subscriber_hash
MailerLite email tracking
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
|
msclkid
Microsoft Click ID
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
oly_anon_id
Omeda marketing 'anonymous' customer id
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
oly_enc_id
Omeda marketing 'known' customer id
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
rb_clickid
Unknown high-entropy tracking parameter
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
|
s_cid
Adobe Site Catalyst tracking parameter
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
|
vero_conv
Vero tracking parameter
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
|
vero_id
Vero tracking parameter
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
wickedid
Wicked Reports e-commerce tracking
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
yclid
Yandex Click ID
| passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
value: 6220409046356266 passed: false,false,false,false,false |
passed: true,true,true,true |
value: 6220409046356266 passed: false,false,false,false,false |
|
Tracker content blocking testsWhich browsers block important known tracking scripts and pixels?
When you visit a web page, it frequently has third-party embedded tracking content, such as scripts and tracking pixels. These embedded components spy on you. Some browsers and browser extensions maintain list of tracking companies and block their content from being loaded. This section checks to see if a browser blocks 20 of the largest trackers listed by https://whotracks.me.`
| |||||||||
|
Adobe
Tests whether the browser blocks the page from loading the tracker at https://munchkin.marketo.net/munchkin.js
| url: https://munchkin.marketo.net/munchkin.js passed: true,true,true,true,true |
url: https://munchkin.marketo.net/munchkin.js passed: false,false,false,false,false |
url: https://munchkin.marketo.net/munchkin.js passed: true,true,true,true,true |
url: https://munchkin.marketo.net/munchkin.js passed: false,false,false,false,false |
url: https://munchkin.marketo.net/munchkin.js passed: false,false,false,false,false |
url: https://munchkin.marketo.net/munchkin.js passed: false,false,false,false,false |
url: https://munchkin.marketo.net/munchkin.js passed: false,false,false,false,false |
url: https://munchkin.marketo.net/munchkin.js passed: false,false,false,false |
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: true,true,true,true,true |
url: https://dpm.demdex.net/ibs passed: false,false,false,false,false |
url: https://dpm.demdex.net/ibs passed: false,false,false,false,false |
url: https://dpm.demdex.net/ibs passed: false,false,false,false,false |
url: https://dpm.demdex.net/ibs passed: false,false,false,false,false |
url: https://dpm.demdex.net/ibs passed: false,false,false,false |
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: true,true,true,true,true |
url: https://s.amazon-adsystem.com/dcm passed: false,false,false,false,false |
url: https://s.amazon-adsystem.com/dcm passed: false,false,false,false,false |
url: https://s.amazon-adsystem.com/dcm passed: false,false,false,false,false |
url: https://s.amazon-adsystem.com/dcm passed: false,false,false,false,false |
url: https://s.amazon-adsystem.com/dcm passed: false,false,false,false |
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: true,true,true,true,true |
url: https://ib.adnxs.com/px?id=178248&t=1 passed: false,false,false,false,false |
url: https://ib.adnxs.com/px?id=178248&t=1 passed: false,false,false,false,false |
url: https://ib.adnxs.com/px?id=178248&t=1 passed: false,false,false,false,false |
url: https://ib.adnxs.com/px?id=178248&t=1 passed: false,false,false,false,false |
url: https://ib.adnxs.com/px?id=178248&t=1 passed: false,false,false,false |
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: true,true,true,true,true |
url: https://bat.bing.com/bat.js passed: false,false,false,false,false |
url: https://bat.bing.com/bat.js passed: false,false,false,false,false |
url: https://bat.bing.com/bat.js passed: false,false,false,false,false |
url: https://bat.bing.com/bat.js passed: false,false,false,false,false |
url: https://bat.bing.com/bat.js passed: false,false,false,false |
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: true,true,true,true,true |
url: https://static.chartbeat.com/js/chartbeat.js passed: false,false,false,false,false |
url: https://static.chartbeat.com/js/chartbeat.js passed: false,false,false,false,false |
url: https://static.chartbeat.com/js/chartbeat.js passed: false,false,false,false,false |
url: https://static.chartbeat.com/js/chartbeat.js passed: false,false,false,false,false |
url: https://static.chartbeat.com/js/chartbeat.js passed: false,false,false,false |
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: true,true,true,true,true |
url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx passed: false,false,false,false,false |
url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx passed: false,false,false,false,false |
url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx passed: false,false,false,false,false |
url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx passed: false,false,false,false,false |
url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx passed: false,false,false,false |
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: true,true,true,true,true |
url: https://securepubads.g.doubleclick.net/static/glade.js passed: false,false,false,false,false |
url: https://securepubads.g.doubleclick.net/static/glade.js passed: false,false,false,false,false |
url: https://securepubads.g.doubleclick.net/static/glade.js passed: false,false,false,false,false |
url: https://securepubads.g.doubleclick.net/static/glade.js passed: false,false,false,false,false |
url: https://securepubads.g.doubleclick.net/static/glade.js passed: false,false,false,false |
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: true,true,true,true,true |
url: https://connect.facebook.net/en_US/fbevents.js passed: false,false,false,false,false |
url: https://connect.facebook.net/en_US/fbevents.js passed: false,false,false,false,false |
url: https://connect.facebook.net/en_US/fbevents.js passed: false,false,false,false,false |
url: https://connect.facebook.net/en_US/fbevents.js passed: false,false,false,false,false |
url: https://connect.facebook.net/en_US/fbevents.js passed: false,false,false,false |
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: true,true,true,true,true |
url: https://www.google.com/pagead/1p-user-list/ passed: false,false,false,false,false |
url: https://www.google.com/pagead/1p-user-list/ passed: false,false,false,false,false |
url: https://www.google.com/pagead/1p-user-list/ passed: false,false,false,false,false |
url: https://www.google.com/pagead/1p-user-list/ passed: false,false,false,false,false |
url: https://www.google.com/pagead/1p-user-list/ passed: false,false,false,false |
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: true,true,true,true,true |
url: https://google-analytics.com/urchin.js passed: false,false,false,false,false |
url: https://google-analytics.com/urchin.js passed: false,false,false,false,false |
url: https://google-analytics.com/urchin.js passed: false,false,false,false,false |
url: https://google-analytics.com/urchin.js passed: false,false,false,false,false |
url: https://google-analytics.com/urchin.js passed: false,false,false,false |
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: true,true,true,true,true |
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL passed: false,false,false,false,false |
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL passed: false,false,false,false,false |
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL passed: false,false,false,false,false |
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL passed: false,false,false,false,false |
url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL passed: false,false,false,false |
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: true,true,true,true,true |
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 passed: false,false,false,false,false |
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 passed: false,false,false,false,false |
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 passed: false,false,false,false,false |
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 passed: false,false,false,false,false |
url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 passed: false,false,false,false |
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: true,true,true,true,true |
url: https://js-agent.newrelic.com/nr-1212.min.js passed: false,false,false,false,false |
url: https://js-agent.newrelic.com/nr-1212.min.js passed: false,false,false,false,false |
url: https://js-agent.newrelic.com/nr-1212.min.js passed: false,false,false,false,false |
url: https://js-agent.newrelic.com/nr-1212.min.js passed: false,false,false,false,false |
url: https://js-agent.newrelic.com/nr-1212.min.js passed: false,false,false,false |
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: true,true,true,true,true |
url: https://pixel.quantserve.com/pixel passed: false,false,false,false,false |
url: https://pixel.quantserve.com/pixel passed: false,false,false,false,false |
url: https://pixel.quantserve.com/pixel passed: false,false,false,false,false |
url: https://pixel.quantserve.com/pixel passed: false,false,false,false,false |
url: https://pixel.quantserve.com/pixel passed: false,false,false,false |
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: true,true,true,true,true |
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js passed: false,false,false,false,false |
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js passed: false,false,false,false,false |
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js passed: false,false,false,false,false |
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js passed: false,false,false,false,false |
url: https://sb.scorecardresearch.com/internal-c2/default/cs.js passed: false,false,false,false |
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: true,true,true,true,true |
url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json passed: false,false,false,false,false |
url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json passed: false,false,false,false,false |
url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json passed: false,false,false,false,false |
url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json passed: false,false,false,false,false |
url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json passed: false,false,false,false |
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: true,true,true,true,true |
url: https://t.co/i/adsct passed: false,false,false,false,false |
url: https://t.co/i/adsct passed: false,false,false,false,false |
url: https://t.co/i/adsct passed: false,false,false,false,false |
url: https://t.co/i/adsct passed: false,false,false,false,false |
url: https://t.co/i/adsct passed: false,false,false,false |
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: true,true,true,true,true |
url: https://yandex.ru/ads/system/header-bidding.js passed: false,false,false,false,false |
url: https://yandex.ru/ads/system/header-bidding.js passed: false,false,false,false,false |
url: https://yandex.ru/ads/system/header-bidding.js passed: false,false,false,false,false |
url: https://yandex.ru/ads/system/header-bidding.js passed: false,false,false,false,false |
url: https://yandex.ru/ads/system/header-bidding.js passed: false,false,false,false |
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.`,
| |||||||||
|
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: 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 url: https://munchkin.marketo.net/munchkin.js cookieFound: 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: 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 url: https://dpm.demdex.net/ibs cookieFound: 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: 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 url: https://s.amazon-adsystem.com/dcm cookieFound: 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: 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: 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 url: https://ib.adnxs.com/px?id=178248&t=1 cookieFound: 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: 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: 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 url: https://bat.bing.com/bat.js cookieFound: 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: 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: 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 url: https://static.chartbeat.com/js/chartbeat.js cookieFound: 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: 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 url: https://dis.criteo.com/dis/rtb/appnexus/cookiematch.aspx cookieFound: 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: 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 url: https://securepubads.g.doubleclick.net/static/glade.js cookieFound: 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: 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 url: https://connect.facebook.net/en_US/fbevents.js cookieFound: 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: 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 url: https://www.google.com/pagead/1p-user-list/ cookieFound: 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 |
|
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: 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: 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 url: https://google-analytics.com/urchin.js cookieFound: false,false,false,false |
passed: false,false,false,false,false url: https://google-analytics.com/urchin.js cookieFound: true,true,true,true,true |
|
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: 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: 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 url: https://www.googletagmanager.com/gtag.js?id=GTM-NX4SMZL cookieFound: 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: 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 url: https://dsum-sec.casalemedia.com/crum?cm_dsp_id=10&external_user_id=629685505537&C=1 cookieFound: 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: 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: 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 url: https://js-agent.newrelic.com/nr-1212.min.js cookieFound: 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: true,false,false,false,false url: https://pixel.quantserve.com/pixel cookieFound: false,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,false,false,false,false url: https://pixel.quantserve.com/pixel cookieFound: false,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 url: https://pixel.quantserve.com/pixel cookieFound: false,false,false,false |
passed: true,false,false,false,false url: https://pixel.quantserve.com/pixel cookieFound: false,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: 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: 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 url: https://sb.scorecardresearch.com/internal-c2/default/cs.js cookieFound: 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: 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 url: https://trc.taboola.com/futureplc-tomsguide/trc/3/json cookieFound: 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: 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: 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 url: https://t.co/i/adsct cookieFound: 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: 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 url: https://yandex.ru/ads/system/header-bidding.js cookieFound: 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, 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: h3, h3, h3, h3, h2
result, different session: h3, h3, h3, h3, h2
unsupported: false, false, false, false, true
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: 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, h2, h2, h2
result, different session: h2, h2, h2, h2
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: 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:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_1p,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_1p,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_1p,
ed89c5d5-5284-434d-ab20-66f4068e19e1_1p,
11a97175-8126-4d8f-929a-2bb60b0ac910_1p
result, different session:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_1p,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_1p,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_1p,
ed89c5d5-5284-434d-ab20-66f4068e19e1_1p,
11a97175-8126-4d8f-929a-2bb60b0ac910_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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_1p,
151c55c3-a19d-4907-8ca6-e7f81812d03d_1p,
f8b802d7-0349-4ce7-82af-d414190aed74_1p,
0293349f-276f-42ac-a23c-88a602d7a729_1p,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_1p
result, different session:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_1p,
151c55c3-a19d-4907-8ca6-e7f81812d03d_1p,
f8b802d7-0349-4ce7-82af-d414190aed74_1p,
0293349f-276f-42ac-a23c-88a602d7a729_1p,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
b255b55d-66a6-483f-818d-063a523543c7_1p,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5_1p,
d482d374-5c74-404c-9bf7-a2c8664264eb_1p,
9dd98fc2-e686-4ccd-add0-ac675161a750_1p,
84a0a2a7-946b-49fb-9d49-0468e446f78d_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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
1b89445c-5926-4118-8658-017efc2b833c_1p,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_1p,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_1p,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_1p,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_1p
result, different session:
1b89445c-5926-4118-8658-017efc2b833c_1p,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_1p,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_1p,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_1p,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
51fe2eae-3539-48a0-b586-d3587498a793_1p,
446c5e9c-0d16-48b6-8b25-05434242cf13_1p,
57a65d33-a8e6-4558-8181-fc99998c775e_1p,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_1p,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_1p
result, different session:
51fe2eae-3539-48a0-b586-d3587498a793_1p,
446c5e9c-0d16-48b6-8b25-05434242cf13_1p,
57a65d33-a8e6-4558-8181-fc99998c775e_1p,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_1p,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_1p,
044b6095-ea66-4597-908c-f7ec712def61_1p,
a5d3884b-bf19-409c-877a-f02390c78a6a_1p,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_1p,
ac4662d3-42ee-44c9-8661-368baf63833f_1p
result, different session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_1p,
044b6095-ea66-4597-908c-f7ec712def61_1p,
a5d3884b-bf19-409c-877a-f02390c78a6a_1p,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_1p,
ac4662d3-42ee-44c9-8661-368baf63833f_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
Error: Failed reading data from the file system,
Error: Failed reading data from the file system,
Error: Failed reading data from the file system,
Error: Failed reading data from the file system,
Error: Failed reading data from the file system
result, different session:
Error: Failed reading data from the file system,
Error: Failed reading data from the file system,
Error: Failed reading data from the file system,
Error: Failed reading data from the file system,
Error: Failed reading data from the file system
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
result, different session:
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.,
Error: The operation is insecure.
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_1p,
62d3a65f-d92f-4358-b36d-a7a9827719f7_1p,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_1p,
8a8e631f-d912-47fd-a171-1f35d71c1f71_1p,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_1p
result, different session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_1p,
62d3a65f-d92f-4358-b36d-a7a9827719f7_1p,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_1p,
8a8e631f-d912-47fd-a171-1f35d71c1f71_1p,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_1p_http,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_1p_http,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_1p_http,
ed89c5d5-5284-434d-ab20-66f4068e19e1_1p_http,
11a97175-8126-4d8f-929a-2bb60b0ac910_1p_http
result, different session:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_1p_http,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_1p_http,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_1p_http,
ed89c5d5-5284-434d-ab20-66f4068e19e1_1p_http,
11a97175-8126-4d8f-929a-2bb60b0ac910_1p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_1p_http,
151c55c3-a19d-4907-8ca6-e7f81812d03d_1p_http,
f8b802d7-0349-4ce7-82af-d414190aed74_1p_http,
0293349f-276f-42ac-a23c-88a602d7a729_1p_http,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_1p_http
result, different session:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_1p_http,
151c55c3-a19d-4907-8ca6-e7f81812d03d_1p_http,
f8b802d7-0349-4ce7-82af-d414190aed74_1p_http,
0293349f-276f-42ac-a23c-88a602d7a729_1p_http,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
b255b55d-66a6-483f-818d-063a523543c7_1p_http,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5_1p_http,
d482d374-5c74-404c-9bf7-a2c8664264eb_1p_http,
9dd98fc2-e686-4ccd-add0-ac675161a750_1p_http,
84a0a2a7-946b-49fb-9d49-0468e446f78d_1p_http
result, different session:
b255b55d-66a6-483f-818d-063a523543c7_1p_http,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5_1p_http,
d482d374-5c74-404c-9bf7-a2c8664264eb_1p_http,
9dd98fc2-e686-4ccd-add0-ac675161a750_1p_http,
84a0a2a7-946b-49fb-9d49-0468e446f78d_1p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
1b89445c-5926-4118-8658-017efc2b833c_1p_http,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_1p_http,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_1p_http,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_1p_http,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_1p_http
result, different session:
1b89445c-5926-4118-8658-017efc2b833c_1p_http,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_1p_http,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_1p_http,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_1p_http,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
51fe2eae-3539-48a0-b586-d3587498a793_1p_http,
446c5e9c-0d16-48b6-8b25-05434242cf13_1p_http,
57a65d33-a8e6-4558-8181-fc99998c775e_1p_http,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_1p_http,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_1p_http
result, different session:
51fe2eae-3539-48a0-b586-d3587498a793_1p_http,
446c5e9c-0d16-48b6-8b25-05434242cf13_1p_http,
57a65d33-a8e6-4558-8181-fc99998c775e_1p_http,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_1p_http,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_1p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_1p_http,
044b6095-ea66-4597-908c-f7ec712def61_1p_http,
a5d3884b-bf19-409c-877a-f02390c78a6a_1p_http,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_1p_http,
ac4662d3-42ee-44c9-8661-368baf63833f_1p_http
result, different session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_1p_http,
044b6095-ea66-4597-908c-f7ec712def61_1p_http,
a5d3884b-bf19-409c-877a-f02390c78a6a_1p_http,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_1p_http,
ac4662d3-42ee-44c9-8661-368baf63833f_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
47a37c68-eb39-4765-8686-ffe721bfeb14_1p_http,
f8ec9174-550d-443b-aa57-09ffdaf3329c_1p_http,
afd67c32-01ad-4959-b33a-06554baf552b_1p_http,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc_1p_http,
2abbfec8-5efe-4964-92d4-4c41dd9c5704_1p_http
result, different session:
47a37c68-eb39-4765-8686-ffe721bfeb14_1p_http,
f8ec9174-550d-443b-aa57-09ffdaf3329c_1p_http,
afd67c32-01ad-4959-b33a-06554baf552b_1p_http,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc_1p_http,
2abbfec8-5efe-4964-92d4-4c41dd9c5704_1p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
ded93f3c-d854-4ed0-b2b1-e9ee70fe4469_1p_http,
ce5f990e-f04b-448e-b94c-0d8d5d6e250d_1p_http,
a94b8b4f-77c6-43c1-9789-0b248b4c8814_1p_http,
13b17d06-b2e3-49b0-a719-9bdf05cce012_1p_http
result, different session: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_1p_http,
62d3a65f-d92f-4358-b36d-a7a9827719f7_1p_http,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_1p_http,
8a8e631f-d912-47fd-a171-1f35d71c1f71_1p_http,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_1p_http
result, different session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_1p_http,
62d3a65f-d92f-4358-b36d-a7a9827719f7_1p_http,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_1p_http,
8a8e631f-d912-47fd-a171-1f35d71c1f71_1p_http,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_1p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
cookie (JS)
The cookie, first introduced by Netscape in 1994, is a small amount of data stored by your browser on a website's behalf. It has legitimate uses, but it is also the classic cross-site tracking mechanism, and today still the most popular method of tracking users across websites. Browsers can stop cookies from being used for cross-site tracking by either blocking or partitioning them.
| write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_1p_js,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_1p_js,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_1p_js,
ed89c5d5-5284-434d-ab20-66f4068e19e1_1p_js,
11a97175-8126-4d8f-929a-2bb60b0ac910_1p_js
result, different session:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_1p_js,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_1p_js,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_1p_js,
ed89c5d5-5284-434d-ab20-66f4068e19e1_1p_js,
11a97175-8126-4d8f-929a-2bb60b0ac910_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_1p_js,
151c55c3-a19d-4907-8ca6-e7f81812d03d_1p_js,
f8b802d7-0349-4ce7-82af-d414190aed74_1p_js,
0293349f-276f-42ac-a23c-88a602d7a729_1p_js,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_1p_js
result, different session:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_1p_js,
151c55c3-a19d-4907-8ca6-e7f81812d03d_1p_js,
f8b802d7-0349-4ce7-82af-d414190aed74_1p_js,
0293349f-276f-42ac-a23c-88a602d7a729_1p_js,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_1p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
b255b55d-66a6-483f-818d-063a523543c7_1p_js,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5_1p_js,
d482d374-5c74-404c-9bf7-a2c8664264eb_1p_js,
9dd98fc2-e686-4ccd-add0-ac675161a750_1p_js,
84a0a2a7-946b-49fb-9d49-0468e446f78d_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
1b89445c-5926-4118-8658-017efc2b833c_1p_js,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_1p_js,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_1p_js,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_1p_js,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_1p_js
result, different session:
1b89445c-5926-4118-8658-017efc2b833c_1p_js,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_1p_js,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_1p_js,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_1p_js,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_1p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
51fe2eae-3539-48a0-b586-d3587498a793_1p_js,
446c5e9c-0d16-48b6-8b25-05434242cf13_1p_js,
57a65d33-a8e6-4558-8181-fc99998c775e_1p_js,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_1p_js,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_1p_js
result, different session:
51fe2eae-3539-48a0-b586-d3587498a793_1p_js,
446c5e9c-0d16-48b6-8b25-05434242cf13_1p_js,
57a65d33-a8e6-4558-8181-fc99998c775e_1p_js,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_1p_js,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_1p_js,
044b6095-ea66-4597-908c-f7ec712def61_1p_js,
a5d3884b-bf19-409c-877a-f02390c78a6a_1p_js,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_1p_js,
ac4662d3-42ee-44c9-8661-368baf63833f_1p_js
result, different session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_1p_js,
044b6095-ea66-4597-908c-f7ec712def61_1p_js,
a5d3884b-bf19-409c-877a-f02390c78a6a_1p_js,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_1p_js,
ac4662d3-42ee-44c9-8661-368baf63833f_1p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
47a37c68-eb39-4765-8686-ffe721bfeb14_1p_js,
f8ec9174-550d-443b-aa57-09ffdaf3329c_1p_js,
afd67c32-01ad-4959-b33a-06554baf552b_1p_js,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc_1p_js,
2abbfec8-5efe-4964-92d4-4c41dd9c5704_1p_js
result, different session:
47a37c68-eb39-4765-8686-ffe721bfeb14_1p_js,
f8ec9174-550d-443b-aa57-09ffdaf3329c_1p_js,
afd67c32-01ad-4959-b33a-06554baf552b_1p_js,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc_1p_js,
2abbfec8-5efe-4964-92d4-4c41dd9c5704_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
ded93f3c-d854-4ed0-b2b1-e9ee70fe4469_1p_js,
ce5f990e-f04b-448e-b94c-0d8d5d6e250d_1p_js,
a94b8b4f-77c6-43c1-9789-0b248b4c8814_1p_js,
13b17d06-b2e3-49b0-a719-9bdf05cce012_1p_js
result, different session: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_1p_js,
62d3a65f-d92f-4358-b36d-a7a9827719f7_1p_js,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_1p_js,
8a8e631f-d912-47fd-a171-1f35d71c1f71_1p_js,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_1p_js
result, different session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_1p_js,
62d3a65f-d92f-4358-b36d-a7a9827719f7_1p_js,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_1p_js,
8a8e631f-d912-47fd-a171-1f35d71c1f71_1p_js,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_1p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
CookieStore
The Cookie Store API is an alternative asynchronous API for managing cookies, supported by some browsers.
| write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_1p,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_1p,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_1p,
ed89c5d5-5284-434d-ab20-66f4068e19e1_1p,
11a97175-8126-4d8f-929a-2bb60b0ac910_1p
result, different session:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_1p,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_1p,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_1p,
ed89c5d5-5284-434d-ab20-66f4068e19e1_1p,
11a97175-8126-4d8f-929a-2bb60b0ac910_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_1p,
151c55c3-a19d-4907-8ca6-e7f81812d03d_1p,
f8b802d7-0349-4ce7-82af-d414190aed74_1p,
0293349f-276f-42ac-a23c-88a602d7a729_1p,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_1p
result, different session:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_1p,
151c55c3-a19d-4907-8ca6-e7f81812d03d_1p,
f8b802d7-0349-4ce7-82af-d414190aed74_1p,
0293349f-276f-42ac-a23c-88a602d7a729_1p,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
1b89445c-5926-4118-8658-017efc2b833c_1p,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_1p,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_1p,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_1p,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_1p
result, different session:
1b89445c-5926-4118-8658-017efc2b833c_1p,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_1p,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_1p,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_1p,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_1p,
044b6095-ea66-4597-908c-f7ec712def61_1p,
a5d3884b-bf19-409c-877a-f02390c78a6a_1p,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_1p,
ac4662d3-42ee-44c9-8661-368baf63833f_1p
result, different session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_1p,
044b6095-ea66-4597-908c-f7ec712def61_1p,
a5d3884b-bf19-409c-877a-f02390c78a6a_1p,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_1p,
ac4662d3-42ee-44c9-8661-368baf63833f_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_1p,
62d3a65f-d92f-4358-b36d-a7a9827719f7_1p,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_1p,
8a8e631f-d912-47fd-a171-1f35d71c1f71_1p,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_1p
result, different session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_1p,
62d3a65f-d92f-4358-b36d-a7a9827719f7_1p,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_1p,
8a8e631f-d912-47fd-a171-1f35d71c1f71_1p,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_1p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
CSS cache
CSS stylesheets are cached, and if that cache is shared between websites, it can be used to track users across sites.
| write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_945228040442309,
fake_0217140151451638,
fake_5358056049556554,
fake_6139064150804618,
fake_8543955884760244
result, different session:
fake_945228040442309,
fake_0217140151451638,
fake_5358056049556554,
fake_6139064150804618,
fake_8543955884760244
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_6108858893569249,
fake_1756258003502531,
fake_9517060262065429,
fake_5151485005296854,
fake_38781100965751003
result, different session:
fake_6108858893569249,
fake_1756258003502531,
fake_9517060262065429,
fake_5151485005296854,
fake_38781100965751003
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_2019216055122226,
fake_1865383893364012,
fake_503810408789958,
fake_22288342820367313,
fake_06044754594980728
result, different session:
fake_2019216055122226,
fake_1865383893364012,
fake_503810408789958,
fake_22288342820367313,
fake_06044754594980728
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_929234838729118,
fake_6957445844388348,
fake_49249340548231,
fake_4006341118272849,
fake_9548471759321586
result, different session:
fake_929234838729118,
fake_6957445844388348,
fake_49249340548231,
fake_4006341118272849,
fake_9548471759321586
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_5556757859848207,
fake_6002773578151144,
fake_6674650910979985,
fake_3673446716936408,
fake_29390468503208367
result, different session:
fake_5556757859848207,
fake_6002773578151144,
fake_6674650910979985,
fake_3673446716936408,
fake_29390468503208367
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_398984199263519,
fake_03390288230444782,
fake_45349595969267154,
fake_4007209374028531,
fake_2565279861532648
result, different session:
fake_398984199263519,
fake_03390288230444782,
fake_45349595969267154,
fake_4007209374028531,
fake_2565279861532648
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_07424902572570558,
fake_2414181683560923,
fake_8824598152097158,
fake_43658333425541684,
fake_32688431213397795
result, different session:
fake_07424902572570558,
fake_2414181683560923,
fake_8824598152097158,
fake_43658333425541684,
fake_32688431213397795
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_04598933290726803,
fake_9722830162197045,
fake_43232015728061635,
fake_26545934012314265
result, different session:
fake_7393251049989065,
fake_9724580426810454,
fake_4213042423123734,
fake_290218108437007
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_925041049541772,
fake_9043980743291558,
fake_6970649134607911,
fake_2870659140084062,
fake_009274241205436073
result, different session:
fake_925041049541772,
fake_9043980743291558,
fake_6970649134607911,
fake_2870659140084062,
fake_009274241205436073
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, 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, 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
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 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: 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
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 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: 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
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 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, 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, 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
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 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: 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
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 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:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_1p,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_1p,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_1p,
ed89c5d5-5284-434d-ab20-66f4068e19e1_1p,
11a97175-8126-4d8f-929a-2bb60b0ac910_1p
result, different session:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_1p,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_1p,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_1p,
ed89c5d5-5284-434d-ab20-66f4068e19e1_1p,
11a97175-8126-4d8f-929a-2bb60b0ac910_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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_1p,
151c55c3-a19d-4907-8ca6-e7f81812d03d_1p,
f8b802d7-0349-4ce7-82af-d414190aed74_1p,
0293349f-276f-42ac-a23c-88a602d7a729_1p,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_1p
result, different session:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_1p,
151c55c3-a19d-4907-8ca6-e7f81812d03d_1p,
f8b802d7-0349-4ce7-82af-d414190aed74_1p,
0293349f-276f-42ac-a23c-88a602d7a729_1p,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_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:
b255b55d-66a6-483f-818d-063a523543c7_1p,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5_1p,
d482d374-5c74-404c-9bf7-a2c8664264eb_1p,
9dd98fc2-e686-4ccd-add0-ac675161a750_1p,
84a0a2a7-946b-49fb-9d49-0468e446f78d_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:
1b89445c-5926-4118-8658-017efc2b833c_1p,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_1p,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_1p,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_1p,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_1p
result, different session:
1b89445c-5926-4118-8658-017efc2b833c_1p,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_1p,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_1p,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_1p,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_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:
51fe2eae-3539-48a0-b586-d3587498a793_1p,
446c5e9c-0d16-48b6-8b25-05434242cf13_1p,
57a65d33-a8e6-4558-8181-fc99998c775e_1p,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_1p,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_1p
result, different session:
51fe2eae-3539-48a0-b586-d3587498a793_1p,
446c5e9c-0d16-48b6-8b25-05434242cf13_1p,
57a65d33-a8e6-4558-8181-fc99998c775e_1p,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_1p,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_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:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_1p,
044b6095-ea66-4597-908c-f7ec712def61_1p,
a5d3884b-bf19-409c-877a-f02390c78a6a_1p,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_1p,
ac4662d3-42ee-44c9-8661-368baf63833f_1p
result, different session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_1p,
044b6095-ea66-4597-908c-f7ec712def61_1p,
a5d3884b-bf19-409c-877a-f02390c78a6a_1p,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_1p,
ac4662d3-42ee-44c9-8661-368baf63833f_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:
47a37c68-eb39-4765-8686-ffe721bfeb14_1p,
f8ec9174-550d-443b-aa57-09ffdaf3329c_1p,
afd67c32-01ad-4959-b33a-06554baf552b_1p,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc_1p,
2abbfec8-5efe-4964-92d4-4c41dd9c5704_1p
result, different session:
47a37c68-eb39-4765-8686-ffe721bfeb14_1p,
f8ec9174-550d-443b-aa57-09ffdaf3329c_1p,
afd67c32-01ad-4959-b33a-06554baf552b_1p,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc_1p,
2abbfec8-5efe-4964-92d4-4c41dd9c5704_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:
ded93f3c-d854-4ed0-b2b1-e9ee70fe4469_1p,
ce5f990e-f04b-448e-b94c-0d8d5d6e250d_1p,
a94b8b4f-77c6-43c1-9789-0b248b4c8814_1p,
13b17d06-b2e3-49b0-a719-9bdf05cce012_1p
result, different session: undefined
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_1p,
62d3a65f-d92f-4358-b36d-a7a9827719f7_1p,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_1p,
8a8e631f-d912-47fd-a171-1f35d71c1f71_1p,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_1p
result, different session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_1p,
62d3a65f-d92f-4358-b36d-a7a9827719f7_1p,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_1p,
8a8e631f-d912-47fd-a171-1f35d71c1f71_1p,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_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:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_1p,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_1p,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_1p,
ed89c5d5-5284-434d-ab20-66f4068e19e1_1p,
11a97175-8126-4d8f-929a-2bb60b0ac910_1p
result, different session:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_1p,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_1p,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_1p,
ed89c5d5-5284-434d-ab20-66f4068e19e1_1p,
11a97175-8126-4d8f-929a-2bb60b0ac910_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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_1p,
151c55c3-a19d-4907-8ca6-e7f81812d03d_1p,
f8b802d7-0349-4ce7-82af-d414190aed74_1p,
0293349f-276f-42ac-a23c-88a602d7a729_1p,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_1p
result, different session:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_1p,
151c55c3-a19d-4907-8ca6-e7f81812d03d_1p,
f8b802d7-0349-4ce7-82af-d414190aed74_1p,
0293349f-276f-42ac-a23c-88a602d7a729_1p,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_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:
b255b55d-66a6-483f-818d-063a523543c7_1p,
40c45b86-4b7f-4b24-9d52-d7bb046eb5f5_1p,
d482d374-5c74-404c-9bf7-a2c8664264eb_1p,
9dd98fc2-e686-4ccd-add0-ac675161a750_1p,
84a0a2a7-946b-49fb-9d49-0468e446f78d_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:
1b89445c-5926-4118-8658-017efc2b833c_1p,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_1p,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_1p,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_1p,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_1p
result, different session:
1b89445c-5926-4118-8658-017efc2b833c_1p,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_1p,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_1p,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_1p,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_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:
51fe2eae-3539-48a0-b586-d3587498a793_1p,
446c5e9c-0d16-48b6-8b25-05434242cf13_1p,
57a65d33-a8e6-4558-8181-fc99998c775e_1p,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_1p,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_1p
result, different session:
51fe2eae-3539-48a0-b586-d3587498a793_1p,
446c5e9c-0d16-48b6-8b25-05434242cf13_1p,
57a65d33-a8e6-4558-8181-fc99998c775e_1p,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_1p,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_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:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_1p,
044b6095-ea66-4597-908c-f7ec712def61_1p,
a5d3884b-bf19-409c-877a-f02390c78a6a_1p,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_1p,
ac4662d3-42ee-44c9-8661-368baf63833f_1p
result, different session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_1p,
044b6095-ea66-4597-908c-f7ec712def61_1p,
a5d3884b-bf19-409c-877a-f02390c78a6a_1p,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_1p,
ac4662d3-42ee-44c9-8661-368baf63833f_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:
47a37c68-eb39-4765-8686-ffe721bfeb14_1p,
f8ec9174-550d-443b-aa57-09ffdaf3329c_1p,
afd67c32-01ad-4959-b33a-06554baf552b_1p,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc_1p,
2abbfec8-5efe-4964-92d4-4c41dd9c5704_1p
result, different session:
47a37c68-eb39-4765-8686-ffe721bfeb14_1p,
f8ec9174-550d-443b-aa57-09ffdaf3329c_1p,
afd67c32-01ad-4959-b33a-06554baf552b_1p,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc_1p,
2abbfec8-5efe-4964-92d4-4c41dd9c5704_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:
ded93f3c-d854-4ed0-b2b1-e9ee70fe4469_1p,
ce5f990e-f04b-448e-b94c-0d8d5d6e250d_1p,
a94b8b4f-77c6-43c1-9789-0b248b4c8814_1p,
13b17d06-b2e3-49b0-a719-9bdf05cce012_1p
result, different session: , , ,
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_1p,
62d3a65f-d92f-4358-b36d-a7a9827719f7_1p,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_1p,
8a8e631f-d912-47fd-a171-1f35d71c1f71_1p,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_1p
result, different session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_1p,
62d3a65f-d92f-4358-b36d-a7a9827719f7_1p,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_1p,
8a8e631f-d912-47fd-a171-1f35d71c1f71_1p,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_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:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
result, different session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
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
result, different session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: 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
|
|
Web SQL Database
The Web SQL Database is a deprecated web API for storing data in an SQL database.
| write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated
result, different session:
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated
result, different session:
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: true, true, true, true, true
passed: undefined
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, 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, 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
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
Cross-session third-party tracking testsWhich browsers prevent third-party trackers from tracking you across browser sessions?
A common vulnerability of web browsers is that they allow third-party trackers to 'tag' your browser with some tracking data. This tag can be used to re-identify you when you return to a website you visited before. This category of leaks can be prevented by browser if they clean or isolate data between browser sessions. (In cases where a user has logged into a website or entered detailed information, it may be justifiable for a browser to retain information across sessions. These tests check when no such justification exists: when you have entered no significant information into a website, will the browser still retain data that allows you to be tracked across sessions?)
| |||||||||
|
Alt-Svc
Alt-Svc allows the server to indicate to the web browser that a resource should be loaded on a different server. Because this is a persistent setting, it could be used to track users across websites if it is not correctly partitioned.
| write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: h3, h3, h3, h3, h3
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: h3, h3, h3, h3, h3
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: 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: h3, h3, h3, h3, h2
result, different session: h3, h3, h3, h3, h2
unsupported: false, false, false, false, true
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: h2, h2, h2, h2, h2
result, different session: h3, h3, h3, h3, h2
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h2, h2, h2, h2
result, different session: h2, h2, h2, h2
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: async () => {
// Clear Alt-Svc caching first.
let responseText = "";
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/clear");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after clear:", responseText);
// Store "h3" state in Alt-Svc cache
for (let i = 0; i < 3; ++i) {
await fetch(altSvcOrigin + "/set");
await sleepMs(100);
}
responseText = await fetchText(altSvcOrigin + "/protocol");
console.log("after set:", responseText);
}
read: async () => {
const protocol = await fetchText(altSvcOrigin + "/protocol");
if ((new URL(location)).searchParams.get("thirdparty") === "same") {
if (protocol !== "h3") {
throw new Error("Unsupported");
}
}
return protocol;
}
result, same session: h3, h3, h3, h3, h3
result, different session: 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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
Error: Failed to execute 'open' on 'CacheStorage': An attempt was made to break through the security policy of the user agent.,
Error: Failed to execute 'open' on 'CacheStorage': An attempt was made to break through the security policy of the user agent.,
Error: Failed to execute 'open' on 'CacheStorage': An attempt was made to break through the security policy of the user agent.,
Error: Failed to execute 'open' on 'CacheStorage': An attempt was made to break through the security policy of the user agent.,
Error: Failed to execute 'open' on 'CacheStorage': An attempt was made to break through the security policy of the user agent.
result, different session:
Error: Failed to execute 'open' on 'CacheStorage': An attempt was made to break through the security policy of the user agent.,
Error: Failed to execute 'open' on 'CacheStorage': An attempt was made to break through the security policy of the user agent.,
Error: Failed to execute 'open' on 'CacheStorage': An attempt was made to break through the security policy of the user agent.,
Error: Failed to execute 'open' on 'CacheStorage': An attempt was made to break through the security policy of the user agent.,
Error: Failed to execute 'open' on 'CacheStorage': An attempt was made to break through the security policy of the user agent.
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_3p,
151c55c3-a19d-4907-8ca6-e7f81812d03d_3p,
f8b802d7-0349-4ce7-82af-d414190aed74_3p,
0293349f-276f-42ac-a23c-88a602d7a729_3p,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_3p
result, different session:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_3p,
151c55c3-a19d-4907-8ca6-e7f81812d03d_3p,
f8b802d7-0349-4ce7-82af-d414190aed74_3p,
0293349f-276f-42ac-a23c-88a602d7a729_3p,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url')
result, different session:
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url'),
Error: undefined is not an object (evaluating 'cacheKeys[0].url')
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
1b89445c-5926-4118-8658-017efc2b833c_3p,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_3p,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_3p,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_3p,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_3p
result, different session:
1b89445c-5926-4118-8658-017efc2b833c_3p,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_3p,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_3p,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_3p,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
51fe2eae-3539-48a0-b586-d3587498a793_3p,
446c5e9c-0d16-48b6-8b25-05434242cf13_3p,
57a65d33-a8e6-4558-8181-fc99998c775e_3p,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_3p,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_3p
result, different session:
51fe2eae-3539-48a0-b586-d3587498a793_3p,
446c5e9c-0d16-48b6-8b25-05434242cf13_3p,
57a65d33-a8e6-4558-8181-fc99998c775e_3p,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_3p,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${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:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_3p,
044b6095-ea66-4597-908c-f7ec712def61_3p,
a5d3884b-bf19-409c-877a-f02390c78a6a_3p,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_3p,
ac4662d3-42ee-44c9-8661-368baf63833f_3p
result, different session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_3p,
044b6095-ea66-4597-908c-f7ec712def61_3p,
a5d3884b-bf19-409c-877a-f02390c78a6a_3p,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_3p,
ac4662d3-42ee-44c9-8661-368baf63833f_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=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
47a37c68-eb39-4765-8686-ffe721bfeb14_3p,
47a37c68-eb39-4765-8686-ffe721bfeb14_3p,
47a37c68-eb39-4765-8686-ffe721bfeb14_3p,
47a37c68-eb39-4765-8686-ffe721bfeb14_3p,
47a37c68-eb39-4765-8686-ffe721bfeb14_3p
result, different session:
47a37c68-eb39-4765-8686-ffe721bfeb14_3p,
47a37c68-eb39-4765-8686-ffe721bfeb14_3p,
47a37c68-eb39-4765-8686-ffe721bfeb14_3p,
47a37c68-eb39-4765-8686-ffe721bfeb14_3p,
47a37c68-eb39-4765-8686-ffe721bfeb14_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
Error: 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.
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: async (key) => {
try {
let cache = await caches.open("supercookies");
cache.addAll([`test.css?key=${key}`]);
} catch (e) {
throw new Error("Unsupported");
}
}
read: async () => {
let cache = await caches.open("supercookies");
let cacheKeys = await cache.keys();
let url = cacheKeys[0].url;
return (new URL(url)).searchParams.get("key");
}
result, same session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_3p,
62d3a65f-d92f-4358-b36d-a7a9827719f7_3p,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_3p,
8a8e631f-d912-47fd-a171-1f35d71c1f71_3p,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_3p
result, different session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_3p,
62d3a65f-d92f-4358-b36d-a7a9827719f7_3p,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_3p,
8a8e631f-d912-47fd-a171-1f35d71c1f71_3p,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
cookie (HTTP)
The cookie, first introduced by Netscape in 1994, is a small amount of data stored by your browser on a website's behalf. It has legitimate uses, but it is also the classic cross-site tracking mechanism, and today still the most popular method of tracking users across websites. Browsers can stop cookies from being used for cross-site tracking by either blocking or partitioning them.
| write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_3p_http,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_3p_http,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_3p_http,
ed89c5d5-5284-434d-ab20-66f4068e19e1_3p_http,
11a97175-8126-4d8f-929a-2bb60b0ac910_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_3p_http,
151c55c3-a19d-4907-8ca6-e7f81812d03d_3p_http,
f8b802d7-0349-4ce7-82af-d414190aed74_3p_http,
0293349f-276f-42ac-a23c-88a602d7a729_3p_http,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_3p_http
result, different session:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_3p_http,
151c55c3-a19d-4907-8ca6-e7f81812d03d_3p_http,
f8b802d7-0349-4ce7-82af-d414190aed74_3p_http,
0293349f-276f-42ac-a23c-88a602d7a729_3p_http,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_3p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
1b89445c-5926-4118-8658-017efc2b833c_3p_http,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_3p_http,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_3p_http,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_3p_http,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_3p_http
result, different session:
1b89445c-5926-4118-8658-017efc2b833c_3p_http,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_3p_http,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_3p_http,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_3p_http,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_3p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${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:
51fe2eae-3539-48a0-b586-d3587498a793_3p_http,
446c5e9c-0d16-48b6-8b25-05434242cf13_3p_http,
57a65d33-a8e6-4558-8181-fc99998c775e_3p_http,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_3p_http,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_3p_http
result, different session:
51fe2eae-3539-48a0-b586-d3587498a793_3p_http,
446c5e9c-0d16-48b6-8b25-05434242cf13_3p_http,
57a65d33-a8e6-4558-8181-fc99998c775e_3p_http,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_3p_http,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_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(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_3p_http,
044b6095-ea66-4597-908c-f7ec712def61_3p_http,
a5d3884b-bf19-409c-877a-f02390c78a6a_3p_http,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_3p_http,
ac4662d3-42ee-44c9-8661-368baf63833f_3p_http
result, different session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_3p_http,
044b6095-ea66-4597-908c-f7ec712def61_3p_http,
a5d3884b-bf19-409c-877a-f02390c78a6a_3p_http,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_3p_http,
ac4662d3-42ee-44c9-8661-368baf63833f_3p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session: , , ,
result, different session: , , ,
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: async (secret) => {
// Request a page that will send an HTTPOnly 'set-cookie' response header with secret value.
await fetch(`${baseURI}cookie?secret=${secret}_http`);
}
read: async () => {
// Test if we now send a requests with a 'cookie' header containing the secret.
let response = await fetch(`${baseURI}headers`);
let cookie = (await response.json())["cookie"];
return cookie ? cookie.match(/secret=([\w-]+)/)[1]: null;
}
result, same session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_3p_http,
62d3a65f-d92f-4358-b36d-a7a9827719f7_3p_http,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_3p_http,
8a8e631f-d912-47fd-a171-1f35d71c1f71_3p_http,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_3p_http
result, different session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_3p_http,
62d3a65f-d92f-4358-b36d-a7a9827719f7_3p_http,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_3p_http,
8a8e631f-d912-47fd-a171-1f35d71c1f71_3p_http,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_3p_http
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
cookie (JS)
The cookie, first introduced by Netscape in 1994, is a small amount of data stored by your browser on a website's behalf. It has legitimate uses, but it is also the classic cross-site tracking mechanism, and today still the most popular method of tracking users across websites. Browsers can stop cookies from being used for cross-site tracking by either blocking or partitioning them.
| write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_3p_js,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_3p_js,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_3p_js,
ed89c5d5-5284-434d-ab20-66f4068e19e1_3p_js,
11a97175-8126-4d8f-929a-2bb60b0ac910_3p_js
result, different session: , , , ,
unsupported: false, false, false, false, false
passed: true, true, true, true, true
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_3p_js,
151c55c3-a19d-4907-8ca6-e7f81812d03d_3p_js,
f8b802d7-0349-4ce7-82af-d414190aed74_3p_js,
0293349f-276f-42ac-a23c-88a602d7a729_3p_js,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_3p_js
result, different session:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_3p_js,
151c55c3-a19d-4907-8ca6-e7f81812d03d_3p_js,
f8b802d7-0349-4ce7-82af-d414190aed74_3p_js,
0293349f-276f-42ac-a23c-88a602d7a729_3p_js,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_3p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
1b89445c-5926-4118-8658-017efc2b833c_3p_js,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_3p_js,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_3p_js,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_3p_js,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_3p_js
result, different session:
1b89445c-5926-4118-8658-017efc2b833c_3p_js,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_3p_js,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_3p_js,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_3p_js,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_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=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
51fe2eae-3539-48a0-b586-d3587498a793_3p_js,
446c5e9c-0d16-48b6-8b25-05434242cf13_3p_js,
57a65d33-a8e6-4558-8181-fc99998c775e_3p_js,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_3p_js,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_3p_js
result, different session:
51fe2eae-3539-48a0-b586-d3587498a793_3p_js,
446c5e9c-0d16-48b6-8b25-05434242cf13_3p_js,
57a65d33-a8e6-4558-8181-fc99998c775e_3p_js,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_3p_js,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_3p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_3p_js,
044b6095-ea66-4597-908c-f7ec712def61_3p_js,
a5d3884b-bf19-409c-877a-f02390c78a6a_3p_js,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_3p_js,
ac4662d3-42ee-44c9-8661-368baf63833f_3p_js
result, different session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_3p_js,
044b6095-ea66-4597-908c-f7ec712def61_3p_js,
a5d3884b-bf19-409c-877a-f02390c78a6a_3p_js,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_3p_js,
ac4662d3-42ee-44c9-8661-368baf63833f_3p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session: , , ,
result, different session: , , ,
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: (secret) => {
document.cookie = `secret=${secret}_js; max-age=3600; SameSite=None; Secure`;
}
read: () => document.cookie ? document.cookie.match(/secret=([\w-]+)/)[1] : null
result, same session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_3p_js,
62d3a65f-d92f-4358-b36d-a7a9827719f7_3p_js,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_3p_js,
8a8e631f-d912-47fd-a171-1f35d71c1f71_3p_js,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_3p_js
result, different session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_3p_js,
62d3a65f-d92f-4358-b36d-a7a9827719f7_3p_js,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_3p_js,
8a8e631f-d912-47fd-a171-1f35d71c1f71_3p_js,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_3p_js
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
CookieStore
The Cookie Store API is an alternative asynchronous API for managing cookies, supported by some browsers.
| write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_3p,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_3p,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_3p,
ed89c5d5-5284-434d-ab20-66f4068e19e1_3p,
11a97175-8126-4d8f-929a-2bb60b0ac910_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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_3p,
151c55c3-a19d-4907-8ca6-e7f81812d03d_3p,
f8b802d7-0349-4ce7-82af-d414190aed74_3p,
0293349f-276f-42ac-a23c-88a602d7a729_3p,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_3p
result, different session:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_3p,
151c55c3-a19d-4907-8ca6-e7f81812d03d_3p,
f8b802d7-0349-4ce7-82af-d414190aed74_3p,
0293349f-276f-42ac-a23c-88a602d7a729_3p,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
1b89445c-5926-4118-8658-017efc2b833c_3p,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_3p,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_3p,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_3p,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_3p
result, different session:
1b89445c-5926-4118-8658-017efc2b833c_3p,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_3p,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_3p,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_3p,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_3p,
044b6095-ea66-4597-908c-f7ec712def61_3p,
a5d3884b-bf19-409c-877a-f02390c78a6a_3p,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_3p,
ac4662d3-42ee-44c9-8661-368baf63833f_3p
result, different session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_3p,
044b6095-ea66-4597-908c-f7ec712def61_3p,
a5d3884b-bf19-409c-877a-f02390c78a6a_3p,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_3p,
ac4662d3-42ee-44c9-8661-368baf63833f_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
result, different session:
Error: Unsupported,
Error: Unsupported,
Error: Unsupported,
Error: Unsupported
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: (data) => {
const msPerHour = 60 * 60 * 1000;
if (!window.cookieStore) {
throw new Error("Unsupported");
}
window.cookieStore.set({
name: "partition_test",
value: data,
expires: Date.now() + msPerHour,
sameSite: "none"
});
}
read: async () => {
if (!window.cookieStore) {
throw new Error("Unsupported");
}
const cookie = await window.cookieStore.get("partition_test");
if (!cookie) {
return null;
}
return cookie.value;
}
result, same session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_3p,
62d3a65f-d92f-4358-b36d-a7a9827719f7_3p,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_3p,
8a8e631f-d912-47fd-a171-1f35d71c1f71_3p,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_3p
result, different session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_3p,
62d3a65f-d92f-4358-b36d-a7a9827719f7_3p,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_3p,
8a8e631f-d912-47fd-a171-1f35d71c1f71_3p,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
|
CSS cache
CSS stylesheets are cached, and if that cache is shared between websites, it can be used to track users across sites.
| write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_9729403876182776,
fake_8523438959784473,
fake_7115698695305686,
fake_8895118020766442,
fake_7961777295551395
result, different session:
fake_9729403876182776,
fake_8523438959784473,
fake_7115698695305686,
fake_8895118020766442,
fake_7961777295551395
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${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="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_9722436023432781,
fake_38834947331659153,
fake_9424774615581986,
fake_9136853406495651,
fake_5963518337316285
result, different session:
fake_9722436023432781,
fake_38834947331659153,
fake_9424774615581986,
fake_9136853406495651,
fake_5963518337316285
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${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="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_9553408163731474,
fake_48481998896225065,
fake_37842569990056885,
fake_8013895232206347,
fake_9421911456816878
result, different session:
fake_9553408163731474,
fake_48481998896225065,
fake_37842569990056885,
fake_8013895232206347,
fake_9421911456816878
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${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="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_20492881237080063,
fake_3983147420523281,
fake_5457324224926561,
fake_6576530164953893,
fake_4737771745188102
result, different session:
fake_20492881237080063,
fake_3983147420523281,
fake_5457324224926561,
fake_6576530164953893,
fake_4737771745188102
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${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="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_2087729734699737,
fake_7441009434782571,
fake_8206284572242457,
fake_7204435730612733,
fake_18845694688671388
result, different session:
fake_2087729734699737,
fake_7441009434782571,
fake_8206284572242457,
fake_7204435730612733,
fake_18845694688671388
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${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="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_7244437826731069,
fake_12914131719025823,
fake_40430499123554764,
fake_9516901607229142,
fake_4277977822319363
result, different session:
fake_7244437826731069,
fake_12914131719025823,
fake_40430499123554764,
fake_9516901607229142,
fake_4277977822319363
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${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="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_5198632821109681,
fake_7495165005745634,
fake_39819377271657586,
fake_6808699015742778,
fake_4664518803677504
result, different session:
fake_5198632821109681,
fake_7495165005745634,
fake_39819377271657586,
fake_6808699015742778,
fake_4664518803677504
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${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="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_9298181589716452,
fake_3506432883773123,
fake_3938469516698646,
fake_09899432988063861
result, different session:
fake_4826516907848972,
fake_5543997515000703,
fake_1844225376491424,
fake_9893300571486208
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return key;
}
read: async (key) => {
const href = testURI("resource", "css", key);
const head = document.getElementsByTagName("head")[0];
head.innerHTML += `<link type="text/css" rel="stylesheet" href="${href}">`;
const testElement = document.querySelector("#css");
let fontFamily;
while (true) {
await sleepMs(100);
fontFamily = getComputedStyle(testElement).fontFamily;
if (fontFamily.startsWith("fake")) {
break;
}
}
console.log(fontFamily);
return fontFamily;
}
result, same session:
fake_07304625897867445,
fake_15194429479194294,
fake_5146054914828133,
fake_9969701302834362,
fake_5629325165834942
result, different session:
fake_07304625897867445,
fake_15194429479194294,
fake_5146054914828133,
fake_9969701302834362,
fake_5629325165834942
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, 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, 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
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => key
read: async (key) => {
// Wait for the favicon to load (defined in supercookies.html)
await sleepMs(2000);
let response = await fetch(
testURI("ctr", "favicon", key), {"cache": "reload"});
let count = (await response.text()).trim();
if (count === "0") {
throw new Error("No requests received");
}
return count;
}
result, same session: 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: 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
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
return key;
}
read: async (key) => {
let response = await fetch(testURI("resource", "fetch", key),
{cache: "force-cache"});
let countResponse = await fetch(testURI("ctr", "fetch", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 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("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${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("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } body { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
return key;
}
read: async (key) => {
const text = document.createElement("span");
text.id = "text";
text.innerText = "test";
document.body.appendChild(text);
const originalWidth = text.getBoundingClientRect().width;
let style = document.createElement("style");
style.type='text/css';
let fontURI = testURI("resource", "font", key);
style.innerHTML = `@font-face {font-family: "myFont"; src: url("${fontURI}"); } #text { font-family: "myFont" }`;
document.getElementsByTagName("head")[0].appendChild(style);
let newWidth;
do {
await sleepMs(100);
newWidth = text.getBoundingClientRect().width;
} while (newWidth < 0 || newWidth === originalWidth)
let response = await fetch(
testURI("ctr", "font", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 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, 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: 2, 1, 1, 2, 1
result, different session: 2, 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) => 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
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
iframe.addEventListener("load", () => resolve(key), {once: true});
iframe.src = testURI("resource", "page", key);
})
read: async (key) => {
let iframe = document.createElement("iframe");
document.body.appendChild(iframe);
let iframeLoadPromise = new Promise((resolve, reject) => {
iframe.addEventListener("load", resolve, {once: true});
});
let address = testURI("resource", "page", key);
iframe.src = address;
await iframeLoadPromise;
let response = await fetch(
testURI("ctr", "page", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 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: 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
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: (key) => new Promise((resolve, reject) => {
let img = document.createElement("img");
document.body.appendChild(img);
img.addEventListener("load", () => resolve(key), {once: true});
img.src = testURI("resource", "image", key);
})
read: async (key) => {
let img = document.createElement("img");
document.body.appendChild(img);
let imgLoadPromise = new Promise((resolve, reject) => {
img.addEventListener("load", resolve, {once: true});
});
img.src = testURI("resource", "image", key);
await imgLoadPromise;
let response = await fetch(
testURI("ctr", "image", key), {"cache": "reload"});
return (await response.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 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:
Error: The user denied permission to access the database.,
Error: The user denied permission to access the database.,
Error: The user denied permission to access the database.,
Error: The user denied permission to access the database.,
Error: The user denied permission to access the database.
result, different session:
Error: The user denied permission to access the database.,
Error: The user denied permission to access the database.,
Error: The user denied permission to access the database.,
Error: The user denied permission to access the database.,
Error: The user denied permission to access the database.
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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_3p,
151c55c3-a19d-4907-8ca6-e7f81812d03d_3p,
f8b802d7-0349-4ce7-82af-d414190aed74_3p,
0293349f-276f-42ac-a23c-88a602d7a729_3p,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_3p
result, different session:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_3p,
151c55c3-a19d-4907-8ca6-e7f81812d03d_3p,
f8b802d7-0349-4ce7-82af-d414190aed74_3p,
0293349f-276f-42ac-a23c-88a602d7a729_3p,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session: undefined
result, different session: undefined
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
1b89445c-5926-4118-8658-017efc2b833c_3p,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_3p,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_3p,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_3p,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_3p
result, different session:
1b89445c-5926-4118-8658-017efc2b833c_3p,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_3p,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_3p,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_3p,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_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:
51fe2eae-3539-48a0-b586-d3587498a793_3p,
446c5e9c-0d16-48b6-8b25-05434242cf13_3p,
57a65d33-a8e6-4558-8181-fc99998c775e_3p,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_3p,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_3p
result, different session:
51fe2eae-3539-48a0-b586-d3587498a793_3p,
446c5e9c-0d16-48b6-8b25-05434242cf13_3p,
57a65d33-a8e6-4558-8181-fc99998c775e_3p,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_3p,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_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:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_3p,
044b6095-ea66-4597-908c-f7ec712def61_3p,
a5d3884b-bf19-409c-877a-f02390c78a6a_3p,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_3p,
ac4662d3-42ee-44c9-8661-368baf63833f_3p
result, different session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_3p,
044b6095-ea66-4597-908c-f7ec712def61_3p,
a5d3884b-bf19-409c-877a-f02390c78a6a_3p,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_3p,
ac4662d3-42ee-44c9-8661-368baf63833f_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:
47a37c68-eb39-4765-8686-ffe721bfeb14_3p,
f8ec9174-550d-443b-aa57-09ffdaf3329c_3p,
afd67c32-01ad-4959-b33a-06554baf552b_3p,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc_3p,
2abbfec8-5efe-4964-92d4-4c41dd9c5704_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.
result, different session:
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
passed: undefined
test failed: false, false, false, false
|
write: async (secret) => {
try {
return await IdbKeyVal.set("secret", secret);
} catch (e) {
throw new Error("Unsupported");
}
}
read: () => IdbKeyVal.get("secret")
result, same session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_3p,
62d3a65f-d92f-4358-b36d-a7a9827719f7_3p,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_3p,
8a8e631f-d912-47fd-a171-1f35d71c1f71_3p,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_3p
result, different session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_3p,
62d3a65f-d92f-4358-b36d-a7a9827719f7_3p,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_3p,
8a8e631f-d912-47fd-a171-1f35d71c1f71_3p,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_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:
ee71b06b-4d58-4df1-8e3b-d80fc7563652_3p,
8c68c7ee-c632-4072-8551-cc017fa0ab3e_3p,
4879bdbb-ae35-4a9f-a99b-dc4f503c6ab3_3p,
ed89c5d5-5284-434d-ab20-66f4068e19e1_3p,
11a97175-8126-4d8f-929a-2bb60b0ac910_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:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_3p,
151c55c3-a19d-4907-8ca6-e7f81812d03d_3p,
f8b802d7-0349-4ce7-82af-d414190aed74_3p,
0293349f-276f-42ac-a23c-88a602d7a729_3p,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_3p
result, different session:
c10611f1-27c2-45ff-84f1-5d04edd81a4d_3p,
151c55c3-a19d-4907-8ca6-e7f81812d03d_3p,
f8b802d7-0349-4ce7-82af-d414190aed74_3p,
0293349f-276f-42ac-a23c-88a602d7a729_3p,
ba795a10-c6e6-4e64-99cc-aa971ee054bf_3p
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session: , , , ,
result, different session: , , , ,
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
1b89445c-5926-4118-8658-017efc2b833c_3p,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_3p,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_3p,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_3p,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_3p
result, different session:
1b89445c-5926-4118-8658-017efc2b833c_3p,
e443ac1d-ddd6-4a4b-83e8-79aa37396cf7_3p,
3b7f5f7d-8201-47eb-bcc2-11d15059b0c8_3p,
f0d2f54b-3e66-44e1-8ee5-4502bf13411b_3p,
4323e7c8-e0d5-4522-8c43-19ba80ce192d_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:
51fe2eae-3539-48a0-b586-d3587498a793_3p,
446c5e9c-0d16-48b6-8b25-05434242cf13_3p,
57a65d33-a8e6-4558-8181-fc99998c775e_3p,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_3p,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_3p
result, different session:
51fe2eae-3539-48a0-b586-d3587498a793_3p,
446c5e9c-0d16-48b6-8b25-05434242cf13_3p,
57a65d33-a8e6-4558-8181-fc99998c775e_3p,
c5d8009d-8e0e-473d-b2c6-8461c4f52a0f_3p,
ee766b86-23a2-4ac4-9be6-c7304ee559e6_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:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_3p,
044b6095-ea66-4597-908c-f7ec712def61_3p,
a5d3884b-bf19-409c-877a-f02390c78a6a_3p,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_3p,
ac4662d3-42ee-44c9-8661-368baf63833f_3p
result, different session:
3ffdbf7d-2c6c-4e97-8de7-6ca4d33cae34_3p,
044b6095-ea66-4597-908c-f7ec712def61_3p,
a5d3884b-bf19-409c-877a-f02390c78a6a_3p,
7e9d3e58-e74b-4678-8d31-23260d1a9c08_3p,
ac4662d3-42ee-44c9-8661-368baf63833f_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:
47a37c68-eb39-4765-8686-ffe721bfeb14_3p,
f8ec9174-550d-443b-aa57-09ffdaf3329c_3p,
afd67c32-01ad-4959-b33a-06554baf552b_3p,
2d5cc1b7-feff-44c8-9785-55e1c66fadbc_3p,
2abbfec8-5efe-4964-92d4-4c41dd9c5704_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.
result, different session:
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
passed: undefined
test failed: false, false, false, false
|
write: (secret) => localStorage.setItem("secret", secret)
read: () => localStorage.getItem("secret")
result, same session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_3p,
62d3a65f-d92f-4358-b36d-a7a9827719f7_3p,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_3p,
8a8e631f-d912-47fd-a171-1f35d71c1f71_3p,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_3p
result, different session:
75055c6f-aaf1-4209-9a57-7da8d1c561aa_3p,
62d3a65f-d92f-4358-b36d-a7a9827719f7_3p,
e5508e97-87ba-4a8f-b2b1-4a7f01ec3e1d_3p,
8a8e631f-d912-47fd-a171-1f35d71c1f71_3p,
3c5242f8-e968-4ec1-a309-8325d4e50ad2_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:
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: 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
result, different session:
Error: No requests received,
Error: No requests received,
Error: No requests received,
Error: No requests received
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
return key;
}
read: async (key) => {
let link = document.createElement("link");
link.rel = "prefetch";
link.href = testURI("resource", "prefetch", key);
document.getElementsByTagName("head")[0].appendChild(link);
await sleepMs(500);
let response = await fetch(
testURI("ctr", "prefetch", key), {"cache": "reload"});
let countString = (await response.text()).trim();
if (parseInt(countString) === 0) {
throw new Error("No requests received");
}
return countString;
}
result, same session: 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
|
|
Web SQL Database
The Web SQL Database is a deprecated web API for storing data in an SQL database.
| write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated
result, different session:
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated
result, different session:
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated,
Error: Web SQL is deprecated
unsupported: true, true, true, true, true
passed: undefined
test failed: false, false, false, false, false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: true, true, true, true
passed: undefined
test failed: false, false, false, false
|
write: async (key) => {
if (!window.openDatabase) {
throw new Error("gported");
}
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let tx = new Promise((resolve) => database.transaction(tx => {
tx.executeSql(
`CREATE TABLE IF NOT EXISTS cache(
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
value TEXT NOT NULL,
UNIQUE (name)
)`,
[], (tx, rs) => {}, (tx, err) => {});
tx.executeSql(
`INSERT OR REPLACE INTO cache(name, value)
VALUES(?, ?)`,
["secret", key], (tx, rs) => {}, (tx, rs) => {});
}));
}
read: async () => {
let database = window.openDatabase("sqlite_supercookie", "", "supercookie", 1024 * 1024);
let result = await new Promise((resolve, reject) => database.transaction(tx => {
tx.executeSql(
"SELECT value FROM cache WHERE name=?",
["secret"],
(tx, rs) => resolve(rs),
(tx, err) => reject(err));
}));
return result.rows.item(0).value;
}
result, same session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
result, different session:
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function,
Error: window.openDatabase is not a function
unsupported: true, true, true, true, true
passed: undefined
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, 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, 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: 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
result, different session: 2, 2, 2, 2
unsupported: false, false, false, false
passed: true, true, true, true
test failed: false, false, false, false
|
write: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
return key;
}
read: async (key) => {
const req = new XMLHttpRequest();
const loadPromise = new Promise(resolve => req.addEventListener("load", resolve));
req.open("GET", testURI("resource", "xhr", key));
req.send();
await loadPromise;
let countResponse = await fetch(testURI("ctr", "xhr", key),
{cache: "reload"});
return (await countResponse.text()).trim();
}
result, same session: 1, 1, 1, 1, 1
result, different session: 1, 1, 1, 1, 1
unsupported: false, false, false, false, false
passed: false, false, false, false, false
test failed: false, false, false, false, false
|