copy-document-mode-quirks.https.html

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This WPT test may be referenced by the following Test IDs:
- /document-picture-in-picture/copy-document-mode-quirks.https.html - WPT Dashboard Interop Dashboard

<title>Test document picture-in-picture copies Document mode when it's quirks mode</title>

<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>

<body>

<script>

promise_test(async (t) => {

  assert_equals(document.compatMode, "BackCompat", "The opener document should be on quirks mode");

  await test_driver.bless('request PiP window');

  const pipWindow = await documentPictureInPicture.requestWindow();

  assert_equals(pipWindow.document.compatMode, "BackCompat", "The picture-in-picture document should be on quirks mode");

});

</script>

</body>