mozilla-central/testing/web-platform/tests/speculation-rules/prefetch/different-initiators.sub.https.html

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Test Info:

<!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="../resources/utils.js"></script>
<script src="resources/utils.sub.js"></script>
<script src="/service-workers/service-worker/resources/test-helpers.sub.js"></script>
<meta name="variant" content="?cross-site-1">
<meta name="variant" content="?cross-site-2">
<meta name="variant" content="?same-site">
<script>
setup(() => assertSpeculationRulesIsSupported());
// Regression test for https://crbug.com/1423234.
promise_test(async t => {
// Open 2 windows.
const hostname1 =
location.search === '?cross-site-1' ? '{{hosts[alt][www]}}' : undefined;
const hostname2 =
location.search === '?cross-site-2' ? '{{hosts[alt][www]}}' : undefined;
const initiator1 = await spawnWindow(
t, { protocol: 'https', hostname: hostname1 });
const initiator2 = await spawnWindow(
t, { protocol: 'https', hostname: hostname2 });
// Start speculation rules prefetch from `initiator1`.
const nextUrl = initiator1.getExecutorURL({ protocol: 'https', page: 2 });
await initiator1.forceSinglePrefetch(nextUrl);
// Register a SW for `nextUrl` -- this is a trick to make the prefetched
// result to put in `PrefetchService::prefetches_ready_to_serve_` in
// Chromium implementation but actually not used by this navigation.
const r = await service_worker_unregister_and_register(
t, 'resources/sw.js', nextUrl);
await wait_for_state(t, r.installing, 'activated');
// Navigate `initiator1`.
// This doesn't use the prefetched result due to the ServiceWorker.
await initiator1.navigate(nextUrl);
// Navigate `initiator1` away from `nextUrl`.
const headers1 = await initiator1.execute_script(() => {
window.executor.suspend(() => {
location.href = 'about:blank';
});
return requestHeaders;
}, []);
// Unregister the SW.
await service_worker_unregister(t, nextUrl);
// Navigate `initiator2`.
// This shouldn't use the prefetched result because the initiator Documents
// (even sites) are different.
await initiator2.execute_script((url) => {
window.executor.suspend(() => {
location.href = url;
});
}, [nextUrl]);
// Note: while the Window for `initiator2` remains open, the executor ID of
// the page is the ID of `nextUrl`, which is `initiator1.context_id`.
// So `initiator1` is used below for manipulating the Window for `initiator2`.
assert_equals(
await initiator1.execute_script(() => location.href),
nextUrl.toString(),
"expected navigation to reach destination URL");
const headers2 = await initiator1.execute_script(() => {
return requestHeaders;
}, []);
assert_not_prefetched(headers1,
"Prefetch should not work due to ServiceWorker.");
assert_not_prefetched(headers2,
"Prefetch should not work for different initiators.");
}, "Cross-initiator prefetches using ServiceWorker tricks");
</script>