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<!DOCTYPE HTML>
<html>
<head>
<title>MSE: disabling via pref</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<pre id="test">
<script class="testbody" type="text/javascript">
SimpleTest.waitForExplicitFinish();
function test() {
ok(!window.MediaSource && !window.SourceBuffer && !window.SourceBufferList,
"MediaSource should be hidden behind a pref");
SimpleTest.doesThrow(() => new MediaSource,
"MediaSource should be hidden behind a pref");
SimpleTest.finish();
}
SpecialPowers.pushPrefEnv({"set":
[
["media.mediasource.enabled", false],
],
}, test);
</script>
</pre>
</body>
</html>
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