| <!DOCTYPE html> |
| <title>Use for navigation the requested prefetched response annotated with No-Vary-Search hint, if |
| No-Vary-Search headers also match during navigation</title> |
| <meta charset="utf-8"> |
| <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> |
| <script src="/common/subset-tests.js"></script> |
| <script src="hint-test-inputs.js"></script> |
| |
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| |
| <script> |
| setup(() => assertSpeculationRulesIsSupported()); |
| |
| /* |
| remoteAgent: the RemoteContext instance used to communicate between the |
| test and the window where prefetch/navigation is happening |
| noVarySearchHeaderValue: the value of No-Vary-Search header to be populated |
| for the prefetched response |
| noVarySearchHintValue: the value of No-Vary-Search hint passed in |
| as expects_no_vary_search hint in prefetch speculation rules. |
| prefetchQuery: query params to be added to prefetchExecutor url and prefetched |
| navigateQuery: query params to be added to prefetchExecutor url and navigated to |
| */ |
| async function prefetchAndNavigate(remoteAgent, noVarySearchHeaderValue, noVarySearchHintValue, prefetchQuery, navigateQuery){ |
| /* |
| Flow: |
| * prefetch prefetch_nvs_hint.py?uuid=...&nvs_header=...&otherqueryparams |
| * the prefetch request above includes no_vary_search_hint in the speculation |
| rules |
| * the server blocks progress on this prefetch request on the server side so |
| from the browser perspective the server is "thinking" |
| * the test starts navigation to |
| prefetch_nvs_hint.py?uuid=...&nvs_header=...&otherdifferentqueryparams. |
| This navigation matches by No-Vary-Search hint the above in |
| progress prefetch. |
| * the test fetches prefetch_nvs_hint.py?uuid=...&unblock="unblock" |
| which unblocks the in progress prefetch so that the in-progress |
| navigation can continue |
| */ |
| const prefetch_nvs_hint_server_page = "prefetch_nvs_hint.py"; |
| const prefetchUrl = remoteAgent.getExecutorURL({executor:prefetch_nvs_hint_server_page}); |
| const navigateToUrl = new URL(prefetchUrl); |
| // Add query params to the url to be prefetched. |
| const additionalPrefetchedUrlSearchParams = new URLSearchParams(prefetchQuery); |
| addNoVarySearchHeaderUsingQueryParam(prefetchUrl, noVarySearchHeaderValue); |
| additionalPrefetchedUrlSearchParams.forEach((value, key) => { |
| prefetchUrl.searchParams.append(key, value); |
| }); |
| |
| await remoteAgent.forceSinglePrefetch(prefetchUrl, |
| {expects_no_vary_search:noVarySearchHintValue}); |
| |
| // Add new query params to navigateToUrl to match No-Vary-Search test case. |
| const additionalNavigateToUrlSearchParams = new URLSearchParams(navigateQuery); |
| addNoVarySearchHeaderUsingQueryParam(navigateToUrl, noVarySearchHeaderValue); |
| additionalNavigateToUrlSearchParams.forEach((value, key) => { |
| navigateToUrl.searchParams.append(key, value); |
| }); |
| // Url used by fetch in order to unblock the prefetched url |
| const nvshint_unblock_url = remoteAgent.getExecutorURL( |
| {executor:prefetch_nvs_hint_server_page, unblock:"unblock"}); |
| await remoteAgent.execute_script((unblock_url) => { |
| onbeforeunload = (event) => { |
| fetch(unblock_url); |
| }; |
| }, [nvshint_unblock_url]); |
| |
| // Try navigating to a non-exact prefetched URL that matches by |
| // No-Vary-Search hint |
| // Wait for the navigation to finish |
| await remoteAgent.navigate(navigateToUrl); |
| } |
| |
| function prefetch_no_vary_search_test(description, noVarySearch, noVarySearchHint, prefetchQuery, navigateQuery, shouldUse){ |
| promise_test(async t => { |
| const agent = await spawnWindow(t, {}); |
| await prefetchAndNavigate(agent, |
| noVarySearch, |
| noVarySearchHint, |
| prefetchQuery, |
| navigateQuery); |
| |
| if (shouldUse) { |
| assert_prefetched(await agent.getRequestHeaders(), |
| "Navigation didn't use the prefetched response!"); |
| } |
| else{ |
| assert_not_prefetched(await agent.getRequestHeaders(), |
| "Navigation used the prefetched response!"); |
| } |
| }, description); |
| } |
| |
| hint_test_inputs.forEach(({description, noVarySearch, noVarySearchHint, prefetchQuery, navigateQuery, shouldUse}) => { |
| subsetTest(prefetch_no_vary_search_test, |
| description, noVarySearch, noVarySearchHint, prefetchQuery, navigateQuery, |
| shouldUse); |
| }); |
| |
| </script> |
