tor-browser

The Tor Browser
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loaf-script-window-attribution.html (2295B)


      1 <!DOCTYPE HTML>
      2 <meta charset=utf-8>
      3 <title>Long Animation Frame Timing: window attribution</title>
      4 <meta name="timeout" content="long">
      5 <body>
      6 <script src="/resources/testharness.js"></script>
      7 <script src="/resources/testharnessreport.js"></script>
      8 <script src="/common/get-host-info.sub.js"></script>
      9 <script src="/common/utils.js"></script>
     10 <script src="/common/dispatcher/dispatcher.js"></script>
     11 <script src="resources/utils.js"></script>
     12 <div id="log"></div>
     13 <script>
     14 
     15 const host_info = get_host_info();
     16 const {ORIGIN, REMOTE_ORIGIN, HTTP_NOTSAMESITE_ORIGIN} = host_info;
     17 
     18 promise_test (async t => {
     19  const [entry, script] = await expect_long_frame_with_script((t, busy_wait) => {
     20    requestAnimationFrame(() => busy_wait());
     21  }, () => true, t);
     22  assert_equals(script.windowAttribution, "self");
     23  assert_equals(script.window, window);
     24 }, 'Scripts in this window should be self-attributed');
     25 
     26 promise_test (async t => {
     27  let found = false;
     28  for (let i = 0; i < 10 && !found; ++i) {
     29    const [executor, iframe] = await prepare_exec_iframe(t, ORIGIN);
     30    const [entry, script] = await expect_long_frame_with_script(() =>
     31      executor.execute_script(async (duration) => {
     32        await new Promise(resolve => window.requestAnimationFrame(resolve));
     33        parent.generate_loaf_now();
     34      }, [very_long_frame_duration]), () => true, t);
     35 
     36      if (script.windowAttribution === "descendant" && script.window === iframe.contentWindow) {
     37          found = true;
     38      }
     39  }
     40 
     41  assert_true(found);
     42 }, 'Scripts in subframes should be descendant-attributed');
     43 
     44 promise_test(async t => {
     45  const iframe = document.createElement("iframe");
     46  iframe.src = "/resource-timing/resources/green.html";
     47  document.body.append(iframe);
     48  t.add_cleanup(() => iframe.remove());
     49  const [entry, script] = await expect_long_frame_with_script(
     50    (t, busy_wait) => requestAnimationFrame(busy_wait), () => true, t);
     51  const in_iframe = iframe.contentWindow.performance.getEntriesByType("long-animation-frame").some(
     52    e => e.scripts.some(script_in_iframe => script_in_iframe.invoker === script.invoker)
     53  );
     54 
     55  assert_false(in_iframe, "IFrame should not receive the LoAF entry");
     56 }, 'A long busy wait in a requestAnimationFrame should not be observable by same-origin iframes');
     57 
     58 </script>
     59 </body>