unload-document-helper.html

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<!DOCTYPE html>

<title>Picture-in-Picture unload-document helper</title>

<script src="/common/media.js"></script>

<body></body>

<script>

'use strict';

window.video = document.createElement('video');

window.video.src = getVideoURI('/media/movie_5');

window.videoReady = new Promise((resolve, reject) => {

  window.video.onloadedmetadata = () => resolve(window.video);

  window.video.onerror = reject;

});

document.body.appendChild(window.video);

</script>