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<!DOCTYPE html>
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
</head>
<script>
const ok = window.parent.ok;
const SpecialPowers = window.parent.SpecialPowers;
async function runTest() {
SpecialPowers.wrap(document.documentElement).requestFullscreen();
const currentType = window.screen.orientation.type;
const lockPromise = window.screen.orientation.lock(currentType.startsWith("landscape") ? "portrait" : "landscape");
ok(true, "lock orientation doesn't throw error at this time");
// This document will be detached by "pending" message.
parent.postMessage("pending", "*");
await lockPromise;
}
</script>
<body onload="runTest()">
</body>
</html>
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