navigation-timing-delivery-type.https.html

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This WPT test may be referenced by the following Test IDs:
- /speculation-rules/prefetch/navigation-timing-delivery-type.https.html?prefetch=false&bypass_cache=false - WPT Dashboard Interop Dashboard
- /speculation-rules/prefetch/navigation-timing-delivery-type.https.html?prefetch=false&bypass_cache=true - WPT Dashboard Interop Dashboard
- /speculation-rules/prefetch/navigation-timing-delivery-type.https.html?prefetch=true&bypass_cache=false - WPT Dashboard Interop Dashboard
- /speculation-rules/prefetch/navigation-timing-delivery-type.https.html?prefetch=true&bypass_cache=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="?prefetch=true&bypass_cache=true">

<meta name="variant" content="?prefetch=false&bypass_cache=true">

<meta name="variant" content="?prefetch=true&bypass_cache=false">

<meta name="variant" content="?prefetch=false&bypass_cache=false">

<script>

setup(() => assertSpeculationRulesIsSupported());

const prefetchEnabled = (Object.fromEntries(

  new URLSearchParams(location.search)).prefetch === "true");

const bypassCache = (Object.fromEntries(

  new URLSearchParams(location.search)).bypass_cache === "true");

promise_test(async t => {

    const agent = await spawnWindow(t);

    // Some meaningless query param to avoid cached response.

    const prefetchUrl =

      bypassCache ? agent.getExecutorURL({ a: "b" }) : agent.getExecutorURL();

    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.`);

    await agent.execute_script(

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

    // Expects one entry, whose `deliveryType` is "navigational-prefetch" for

    // the prefetched request, and "" for the non-prefetched.

//

    // TODO(crbug/1317756): Currently the initial prefetch request bypasses the

    // HTTP cache, making `deliveryType` always an empty string for non-prefetch

    // request. Expand test coverage when `net::LOAD_DISABLE_CACHE` is removed.

    assert_equals(await agent.execute_script(() => window.entries.length), 1,

      'Wrong number of entries');

    const deliveryType =

      await agent.execute_script(() => window.entries[0].deliveryType);

    const expectedDeliveryType = prefetchEnabled ? 'navigational-prefetch' : '';

    assert_equals(deliveryType, expectedDeliveryType);

  }, `PerformanceNavigationTiming.deliveryType test, same origin prefetch.`);

</script>