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<!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>
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