gecko-dev/toolkit/components/antitracking/test/browser/browser_siteSpecificWorkArounds.js

AntiTracking.runTest("localStorage with a tracker that is whitelisted via a pref",
  async _ => {
    let shouldThrow = SpecialPowers.Services.prefs.getIntPref("network.cookie.cookieBehavior") == SpecialPowers.Ci.nsICookieService.BEHAVIOR_REJECT;

    let hasThrown;
    try {
      localStorage.foo = 42;
      hasThrown = false;
    } catch (e) {
      hasThrown = true;
    }

    is(hasThrown, shouldThrow, "LocalStorage is allowed");
  },
  async _ => {
    localStorage.foo = 42;
    ok(true, "LocalStorage is allowed");
  },
  async _ => {
    await new Promise(resolve => {
      Services.clearData.deleteData(Ci.nsIClearDataService.CLEAR_ALL, value => resolve());
    });
  },
  [["urlclassifier.trackingAnnotationSkipURLs", "tracking.example.org"]],
  false, // run the window.open() test
  false, // run the user interaction test
  0, // don't expect blocking notifications
  false); // run in a normal window

AntiTracking.runTest("localStorage with a tracker that is whitelisted via a fancy pref",
  async _ => {
    let shouldThrow = SpecialPowers.Services.prefs.getIntPref("network.cookie.cookieBehavior") == SpecialPowers.Ci.nsICookieService.BEHAVIOR_REJECT;

    let hasThrown;
    try {
      localStorage.foo = 42;
      hasThrown = false;
    } catch (e) {
      hasThrown = true;
    }

    is(hasThrown, shouldThrow, "LocalStorage is allowed");
  },
  async _ => {
    localStorage.foo = 42;
    ok(true, "LocalStorage is allowed");
  },
  async _ => {
    await new Promise(resolve => {
      Services.clearData.deleteData(Ci.nsIClearDataService.CLEAR_ALL, value => resolve());
    });
  },
  [["urlclassifier.trackingAnnotationSkipURLs", "foobar.example,*.example.org,baz.example"]],
  false, // run the window.open() test
  false, // run the user interaction test
  0, // don't expect blocking notifications
  false); // run in a normal window

AntiTracking.runTest("localStorage with a tracker that is whitelisted via a misconfigured pref",
  async _ => {
    try {
      localStorage.foo = 42;
      ok(false, "LocalStorage cannot be used!");
    } catch (e) {
      ok(true, "LocalStorage cannot be used!");
      is(e.name, "SecurityError", "We want a security error message.");
    }
  },
  async _ => {
    localStorage.foo = 42;
    ok(true, "LocalStorage is allowed");
  },
  async _ => {
    await new Promise(resolve => {
      Services.clearData.deleteData(Ci.nsIClearDataService.CLEAR_ALL, value => resolve());
    });
  },
  [["urlclassifier.trackingAnnotationSkipURLs", "*.tracking.example.org"]],
  false, // run the window.open() test
  false, // run the user interaction test
  Ci.nsIWebProgressListener.STATE_COOKIES_BLOCKED_TRACKER, // expect blocking notifications
  false); // run in a normal window