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<!doctype html>
<title>Test load of media document in sandboxed iframe</title>
<link rel="motivation" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1783601">
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<body></body>
<script>
promise_test(async () => {
const frame = document.createElement('iframe');
frame.sandbox = '';
frame.src =
// 'PartialContent' ensures that the entire video resource does not load
// in one fetch.
'/service-workers/service-worker/resources/fetch-access-control.py?'
+ 'VIDEO&PartialContent';
document.body.appendChild(frame);
await new Promise(resolve => frame.onload = resolve);
const video = SpecialPowers.wrap(frame).contentDocument.body.childNodes[0];
video.muted = true; // to allow playback
return video.play();
});
</script>
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