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<!DOCTYPE html>
<title>Same-origin prerendering can trigger autoplay</title>
<meta name="timeout" content="long">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/utils.js"></script>
<script src="/common/dispatcher/dispatcher.js"></script>
<script src="resources/utils.js"></script>
<body>
<script>
  setup(() => assertSpeculationRulesIsSupported());

  promise_test(async t => {
    const {exec, activate} = await create_prerendered_page(t);
    await exec(() => {
      const video = document.createElement('video');
      video.src = '/media/A4.mp4';
      video.autoplay = true;
      video.muted = true;
      window.video = video;
      document.body.appendChild(video);
    });

    await new Promise(resolve => t.step_timeout(resolve, 500));

    const before_activation = await exec(() => ({
      readyState: video.readyState,
      paused: video.paused,
      currentTime: video.currentTime
    }));

    await activate();
    await new Promise(resolve => t.step_timeout(resolve, 500));
    const after_activation = await exec(() => ({
      readyState: video.readyState,
      paused: video.paused,
      currentTime: video.currentTime
    }));

    assert_equals(before_activation.paused, false);
    assert_equals(before_activation.currentTime, 0);
    assert_equals(after_activation.paused, false);
    assert_greater_than(before_activation.currentTime, 0);
 }, "media autoplay should defer playaback");
</script>
</script>
</body>