chrome-bug-1348019.https.html

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This WPT test may be referenced by the following Test IDs:
- /screen-wake-lock/chrome-bug-1348019.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<link rel="author" href="mailto:caseq@chromium.org">

<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1348019">

<title>Releasing wake locks upon visibility change does not cause crash if an iframe is appended in event listener</title>

<body>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/resources/testdriver.js"></script>

<script src="/resources/testdriver-vendor.js"></script>

<script src="/page-visibility/resources/window_state_context.js"></script>

<script>

'use strict';

promise_test(async t => {

  await test_driver.set_permission({ name: 'screen-wake-lock' }, 'granted');

  const { minimize } = window_state_context(t);

  const screenLock = await navigator.wakeLock.request('screen');

  assert_false(screenLock.released, "The released attribute is initially false");

  screenLock.addEventListener('release', () => {

    const iframe = document.createElement('iframe');

    iframe.src = 'about:blank';

    document.body.appendChild(iframe);

});

  const release = new EventWatcher(t, screenLock, 'release').wait_for('release');

  await Promise.all([minimize(), release]);

  assert_true(screenLock.released, "The released attribute is true after the lock is released");

}, "Appending iframe in release event listener does not cause a crash when page visibility changes");

</script>

</body>

</html>