cross-origin-video.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/browsers/browsing-the-web/read-media/cross-origin-video.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>Test cross origin load of media document in parts</title>

<link rel="motivation" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1781759">

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

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

<script src="/common/get-host-info.sub.js"></script>

<body></body>

<script>

promise_test(async () => {

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

  const dir = location.pathname.replace(/\/[^\/]*$/, '/');

  frame.src =

    // remote origin intermediate document

    get_host_info().HTTP_NOTSAMESITE_ORIGIN + dir

    // iframe-document.sub.html has an iframe with src=childsrc.

    + 'resources/iframe-document.sub.html?childsrc='

    // same origin video document, so that we can play().

    + get_host_info().ORIGIN

    // 'PartialContent' ensures that the entire video resource does not load

    // in one fetch.

    + '/service-workers/service-worker/resources/fetch-access-control.py?'

    + 'VIDEO%26PartialContent';

  let v = document.createElement("video");

  frame.src += "%26mp4";

  document.body.appendChild(frame);

  await new Promise(resolve => frame.onload = resolve);

  const inner = frame.contentWindow.frames[0];

  const video = inner.document.body.childNodes[0];

  video.muted = true;  // to allow playback

  return video.play();

});

</script>