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Test Info: Errors
- This test failed 2 times in the preceding 30 days. quicksearch this test
- Manifest: toolkit/components/resistfingerprinting/tests/browser/browser.toml
/* import-globals-from testHelpers.js */
// This test ensures that a service worker for an exempted domain is exempted when it is
// in the first party context, and not exempted when it is in a third party context.
runTestInFirstAndThirdPartyContexts(
"ServiceWorkers - Check that RFP correctly is exempted and not exempted when FPI is enabled",
async win => {
// Quickly unset and reset these prefs so we can get the real navigator.hardwareConcurrency
// It can't be set externally and then captured because this function gets stringified and
// then evaled in a new scope.
await SpecialPowers.pushPrefEnv({
set: [
["privacy.firstParty.isolate", false],
["privacy.resistFingerprinting", false],
],
});
var DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency;
await SpecialPowers.popPrefEnv();
// Register service worker for the first-party window.
if (!win.sw) {
win.sw = await registerServiceWorker(win, "serviceWorker.js");
}
// Check navigator HW concurrency from the first-party service worker.
let res = await sendAndWaitWorkerMessage(
win.sw,
win.navigator.serviceWorker,
{ type: "GetHWConcurrency" }
);
console.info(
"First Party, got: " +
res.value +
" Expected: " +
DEFAULT_HARDWARE_CONCURRENCY
);
is(
res.value,
DEFAULT_HARDWARE_CONCURRENCY,
"As a first party, HW Concurrency should not be spoofed"
);
},
async win => {
let SPOOFED_HW_CONCURRENCY = 2;
// Register service worker for the third-party window.
if (!win.sw) {
win.sw = await registerServiceWorker(win, "serviceWorker.js");
}
// Check navigator HW concurrency from the first-party service worker.
let res = await sendAndWaitWorkerMessage(
win.sw,
win.navigator.serviceWorker,
{ type: "GetHWConcurrency" }
);
console.info(
"Third Party, got: " + res.value + " Expected: " + SPOOFED_HW_CONCURRENCY
);
is(
res.value,
SPOOFED_HW_CONCURRENCY,
"As a third party, HW Concurrency should be spoofed"
);
},
async _ => {
await new Promise(resolve => {
Services.clearData.deleteData(Ci.nsIClearDataService.CLEAR_ALL, () =>
resolve()
);
});
},
[
["dom.serviceWorkers.exemptFromPerDomainMax", true],
["dom.ipc.processCount", 1],
["dom.serviceWorkers.enabled", true],
["dom.serviceWorkers.testing.enabled", true],
["privacy.firstparty.isolate", true],
["privacy.resistFingerprinting", true],
["privacy.resistFingerprinting.exemptedDomains", "example.com"],
]
);