56 lines
2.4 KiB
HTML
56 lines
2.4 KiB
HTML
<!DOCTYPE html>
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<meta name="timeout" content="long">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/common/dispatcher/dispatcher.js"></script>
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<script src="/common/utils.js"></script>
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<script src="../resources/utils.js"></script>
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<script src="resources/utils.sub.js"></script>
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<meta name="variant" content="?cross-site">
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<meta name="variant" content="?same-site">
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<script>
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setup(() => assertSpeculationRulesIsSupported());
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// In https://html.spec.whatwg.org/multipage/browsing-the-web.html#navigate,
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// `sourceDocument` (instead of `navigable`'s active document) should be
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// used as the referring document for prefetch.
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//
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// Nonetheless, a prefetch in a top-level window is not suitable to use in an iframe.
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// In particular, browsers partition storage and cache by top-level site.
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// If a browser does start allowing these in narrower cases where the partition
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// would nonetheless be the same, this test might need tweaking.
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promise_test(async t => {
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const win = await spawnWindow(t, { protocol: 'https' });
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const hostname =
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location.search === '?cross-site' ? '{{hosts[alt][www]}}' : undefined;
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const nextUrl = win.getExecutorURL({ protocol: 'https', hostname, page: 2 });
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await win.forceSinglePrefetch(nextUrl);
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// In https://html.spec.whatwg.org/multipage/browsing-the-web.html#navigate,
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// `sourceDocument` is the incumbent Document and thus `win`'s Document.
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// `navigable`'s active document is `iframe`'s Document.
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await win.execute_script((url) => {
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window.executor.suspend(() => {
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const iframe = document.createElement('iframe');
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document.body.appendChild(iframe);
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iframe.contentWindow.location.href = url;
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});
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}, [nextUrl]);
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// Below, the scripts given to `win.execute_script()` are executed on the
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// `nextUrl` page in the iframe, because `window.executor.suspend()` above
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// made `win`'s original page stop processing `execute_script()`,
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// while the new page of `nextUrl` in the iframe starts processing
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// `execute_script()` for the same ID.
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assert_equals(
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await win.execute_script(() => location.href),
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nextUrl.toString(),
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"expected navigation to reach destination URL");
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assert_not_prefetched(await win.getRequestHeaders());
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}, `location.href across iframe`);
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</script>
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