navigation-id-reset.tentative.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /performance-timeline/navigation-id-reset.tentative.html - WPT Dashboard Interop Dashboard

<!DOCTYPE HTML>

<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="/html/browsers/browsing-the-web/back-forward-cache/resources/helper.sub.js"></script>

<script>

  const reload = () => {

    window.location.reload();

};

  const getNavigationId = () => {

    window.performance.mark('initial_load');

    let entries = window.performance.getEntriesByType('mark');

    return entries[entries.length - 1].navigationId;

  promise_test(async t => {

    const pageA = new RemoteContext(token());

    const pageB = new RemoteContext(token());

    const urlA = executorPath + pageA.context_id;

    const urlB = originCrossSite + executorPath + pageB.context_id;

    // Open url A.

    window.open(urlA, '_blank', 'noopener')

    await pageA.execute_script(waitForPageShow);

    let navigationIdInitial = await pageA.execute_script(getNavigationId);

    // Navigate away to url B and back.

    await navigateAndThenBack(pageA, pageB, urlB);

    // Assert navigation id is re-generated and thus different when the

    // document is load from bfcache.

    navigationIdAfterBFCacheNav = await pageA.execute_script(getNavigationId);

    assert_not_equals(navigationIdInitial, navigationIdAfterBFCacheNav, 'Navigation Id should be \

    re-generated and different from the previous one after back-forward-cache navigation.');

    // Reload page.

    await pageA.execute_script(reload);

    await pageA.execute_script(waitForPageShow);

    navigationIdAfterReset = await pageA.execute_script(getNavigationId);

    assert_not_equals(navigationIdAfterReset, navigationIdAfterBFCacheNav, 'Navigation Id should\

    be re-generated after reload which is different from the previous one.');

    assert_not_equals(navigationIdAfterReset, navigationIdInitial, 'Navigation Id should\

    be re-generated after reload which is different from the one of the initial load.');

  }, 'Navigation Id should be re-generated after reload.');

</script>