tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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compute-pressure.https.html (1222B)


      1 <!DOCTYPE html>
      2 <title>Verify that Compute Pressure API from a fenced frame is blocked</title>
      3 <script src="/resources/testharness.js"></script>
      4 <script src="/resources/testharnessreport.js"></script>
      5 <script src="/common/utils.js"></script>
      6 <script src="/common/dispatcher/dispatcher.js"></script>
      7 <script src="resources/utils.js"></script>
      8 
      9 <body>
     10 <script>
     11 promise_test(async () => {
     12  const frame = attachFencedFrameContext({
     13    headers: [["Permissions-Policy", "compute-pressure=*"]]
     14  });
     15  const result = await frame.execute(async () => {
     16    try {
     17      const observer = new PressureObserver(() => {});
     18      await observer.observe('cpu');
     19      return 'observation succeeded';
     20    } catch (e) {
     21      if (e.name == 'NotAllowedError' &&
     22          e.message.includes(`Access to the feature "compute pressure" is `
     23          + "disallowed by permissions policy.")) {
     24        return 'observation failed';
     25      } else {
     26        return `observation failed with unknown error - ${e.name}: ${e.message}`;
     27      }
     28    }
     29  });
     30  assert_equals(result, 'observation failed',
     31                'PressureObserver.observe() fails in a fenced frame.');
     32 }, 'PressureObserver.observe() fails in a fenced frame.');
     33 </script>
     34 </body>