unload-on-prerender-cross-origin-subframe-navigation.html

<!DOCTYPE html>
<script src="/common/get-host-info.sub.js"></script>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/speculation-rules/prerender/resources/utils.js"></script>
<script src="unload-utils.js"></script>

<body>
  <script type="module">
    const params = new URLSearchParams(location.search);
    const state = params.get('state') || 'start';
    const uid = params.get('uid');

    // Test steps:
    //   1. `start` page starts prerendering `prerendering` page.
    //   2. `prerendering` page adds `same-origin-frame`.
    //   3. `same-origin-frame' navigates to `cross-origin-frame`.
    //   4. `same-origin-frame` asks `start` page to activate `prerendering`.
    //   5. `visibilitychange` event is handled in `same-origin-frame` due to
    //       the activation.
    //   6. `pagehide`, `visibilitychange`, and `unload` events are handled in
    //      `same-origin-frame` for the resumed navigation.
    //   7. `cross-origin-frame` is loaded, then `prerendering` quits the test.
    sendChannelMessage('load ' + state, uid);
    if (state === 'start') {
      const url = createTestUrl('prerendering', uid);
      startPrerendering(url);

      // Wait for a message from 'same-origin-frame' that is sent after
      // triggering cross-origin navigation.
      await waitChannelMessage('request activation', uid);

      // Activate the 'prerendering' page.
      document.location = url;
    } else if (state === 'prerendering') {
      const frame = addFrame(createTestUrl('same-origin-frame', uid));
    } else if (state === 'same-origin-frame') {
      const eventPromise = addEventListeners(state, uid);

      // Run a cross-origin navigation.
      document.location = createCrossOriginTestUrl('cross-origin-frame', uid);

      // Ask the 'start' page to activate the prerendering page.
      sendChannelMessage('request activation', uid);

      // Wait for events fired during activation (e.g., unload).
      await eventPromise;
    } else if (state === 'cross-origin-frame') {
      // Complete the test when the `cross-origin-frame` is loaded.
      window.close();
    }

  </script>
</body>
chromium/third_party/blink/web_tests/wpt_internal/prerender/resources/unload-on-prerender-cross-origin-subframe-navigation.html
