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<!DOCTYPE HTML>
<html>
<head>
  <title>load CORS Text track correctly when its parent media element's preload is none</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <script type="text/javascript" src="manifest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<video preload="none" crossorigin="anonymous">
  <track src="http://example.com/tests/dom/media/test/video.sjs?name=tests/dom/media/test/basic.vtt&type=text/vtt&cors=anonymous" kind="subtitles" id="default" default>
</video>
<script type="text/javascript">
/**
 * This test is used to test the text track element with CORS resource can starts
 * loaded correctly when its parent media element's preload attribute is none.
 */
async function runTest() {
  await waitUntiTrackLoaded();
  SimpleTest.finish();
}

SimpleTest.waitForExplicitFinish();
runTest();

/**
 * The following are test helper functions.
 */
async function waitUntiTrackLoaded() {
  let trackElement = document.getElementById("default");
  if (trackElement.readyState != 2) {
    info(`wait until the track finishes loading`);
    await once(trackElement, "load");
  }
  is(trackElement.readyState, 2, "Track::ReadyState should be set to LOADED.");
  is(trackElement.track.cues.length, 6, "Cue list length should be 6.");
}
</script>
</body>
</html>