navigation-timing-requestStart-responseStart.https.html

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /speculation-rules/prefetch/navigation-timing-requestStart-responseStart.https.html?default - WPT Dashboard Interop Dashboard
- /speculation-rules/prefetch/navigation-timing-requestStart-responseStart.https.html?prefetch=true - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

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

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

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

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

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

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

<meta name="variant" content="?default">

<meta name="variant" content="?prefetch=true">

<script>

setup(() => assertSpeculationRulesIsSupported());

const searchParams = new URLSearchParams(location.search);

const prefetchEnabled = searchParams.has('prefetch');

promise_test(async t => {

    const agent = await spawnWindow(t);

    // Some meaningless query param to avoid cached response.

    const prefetchUrl = agent.getExecutorURL({ a: "b" });

    if (prefetchEnabled)

      await agent.forceSinglePrefetch(prefetchUrl);

    await agent.navigate(prefetchUrl);

    if (prefetchEnabled) {

      assert_prefetched(await agent.getRequestHeaders(),

        `Prefetch ${prefetchUrl.href} should work.`);

    } else {

      assert_not_prefetched(await agent.getRequestHeaders(),

        `${prefetchUrl.href} should not be prefetched.`);

    const entries = await agent.execute_script(

      () => performance.getEntriesByType('navigation'));

    assert_equals(entries.length, 1, 'Wrong number of navigation entries');

    const entry = entries[0];

    // Events timeline:

    //   ... -> connectEnd --> requestStart --> responseStart --> ...

    if (prefetchEnabled) {

      assert_equals(entry.connectEnd, entry.requestStart);

      assert_equals(entry.requestStart, entry.responseStart);

    } else {

      assert_less_than_equal(entry.connectEnd, entry.requestStart);

      assert_less_than_equal(entry.requestStart, entry.responseStart);

  }, "PerformanceNavigationTiming.requestStart/responseStart test, same origin prefetch.");

</script>