main-frame-navigation.https.html

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This WPT test may be referenced by the following Test IDs:
- /speculation-rules/prerender/main-frame-navigation.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Test about: main frame navigation in a prerendered page</title>

<meta name="timeout" content="long">

<script src="/common/utils.js"></script>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="../resources/utils.js"></script>

<script src="resources/utils.js"></script>

<body>

<script>

setup(() => assertSpeculationRulesIsSupported());

promise_test(async t => {

  const uid = token();

  const bc = new PrerenderChannel('result', uid);

  const gotMessage = new Promise(resolve => {

    bc.addEventListener('message', e => {

      resolve(e.data);

    }, {

      once: true

});

});

  const url = `resources/main-frame-navigation.html?uid=${uid}`;

  window.open(url, '_blank', 'noopener');

  const result = await gotMessage;

  assert_equals(result.onprerenderingchangeCalled, true,

      'prerenderingchange event should be called after activation.');

  assert_equals(result.prerenderingValueBeforeActivation, true,

      'document.prerendering should be true prior to activation.');

  assert_equals(result.prerenderingValueAfterActivation, false,

      'document.prerendering should be false after activation.');

}, 'Test document.prerendering and prerenderingchange event in the navigated ' +

   'page');

</script>