file_lock_orientation_with_pending_fullscreen.html

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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>