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<!DOCTYPE HTML>
<html>
<head>
  <title>Should not load CORS vtt file when server doesn't respond with correct CORS header</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" kind="subtitles" id="default" default>
</video>
<script type="text/javascript">
/**
 * This test is used to ensure that we shouldn't load CORS resource if server
 * doesn't respond with correct CORS header. In this situation, loading should
 * be expected to fail.
 */
async function runTest() {
  await waitUntiTrackLoadError();
  SimpleTest.finish();
}

SimpleTest.waitForExplicitFinish();
runTest();

/**
 * The following are test helper functions.
 */
async function waitUntiTrackLoadError() {
  const trackElement = document.getElementById("default");
  if (trackElement.readyState != 3) {
    info(`wait until receiving error event`);
    await once(trackElement, "error");
  }
  is(trackElement.readyState, 3, "Track::ReadyState should be set to ERROR.");
  is(trackElement.track.cues.length, 0, "Cue list length should be 0.");
}
</script>
</body>
</html>