| <!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> |
