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Bug 1733861 [wpt PR 31083] - [WPT] BFCache: pushState() in BFCache/no…
…n-BFCache cases, a=testonly Automatic update from web-platform-tests [WPT] BFCache: pushState() in BFCache/non-BFCache cases When doing history navigation to an entry that's created via pushState, the page should be: - With BFCache: Restored from BFCache. - Without BFCache: Loaded from the URL set by `pushState()`. While this test contradicts the current spec but matches the desired behavior, and the spec will be fixed as part of whatwg/html#6315. Tests pass on Firefox/Safari/Chrome, except for Safari on non-BFCache case (just because WebLock doesn't disable BFCache). Bug: 1107415, 1298336, whatwg/html#6207 Change-Id: I609276fe865fa92409fd7a547777dba222bac36c Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3199857 Reviewed-by: Kouhei Ueno <[email protected]> Reviewed-by: Domenic Denicola <[email protected]> Reviewed-by: Rakina Zata Amni <[email protected]> Commit-Queue: Hiroshige Hayashizaki <[email protected]> Cr-Commit-Position: refs/heads/main@{#972799} -- wpt-commits: a400637a6ee3b7b6f315be2a17a7b28257663b4b wpt-pr: 31083
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63
...web-platform/tests/html/browsers/browsing-the-web/back-forward-cache/pushstate.https.html
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|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| <!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/helper.sub.js"></script> | ||
| <script> | ||
| // Tests what happens when doing history navigation to an entry that's created | ||
| // via pushState, with and without BFCache: | ||
| // 1. Navigate to `urlA`. | ||
| // 2. `pushState(urlPushState)`. | ||
| // 3. Navigate to `urlB`. | ||
| // 4. Do a back navigation. | ||
| // With BFCache, the page loaded at Step 1 is restored from BFCache, | ||
| // and is not reloaded from `urlPushState` nor `urlA`. | ||
| // Without BFCache, a page is loaded from `urlPushState`, not from `urlA`. | ||
| // In both cases, `location` and `history.state` are set to those set by | ||
| // `pushState()` in Step 2. | ||
| // See https://github.com/whatwg/html/issues/6207 for more discussion on the | ||
| // specified, implemented and desired behaviors. While this test contradicts | ||
| // the current spec but matches the desired behavior, and the spec will be | ||
| // fixed as part of https://github.com/whatwg/html/pull/6315. | ||
| for (const bfcacheDisabled of [false, true]) { | ||
| const pushStateExecutorPath = | ||
| '/html/browsers/browsing-the-web/back-forward-cache/resources/executor-pushstate.html'; | ||
|
|
||
| runBfcacheTest({ | ||
| funcBeforeNavigation: async (bfcacheDisabled, pushStateExecutorPath) => { | ||
| const urlPushState = new URL(location.href); | ||
| urlPushState.pathname = pushStateExecutorPath; | ||
| if (bfcacheDisabled) { | ||
| await disableBFCache(); | ||
| } | ||
|
|
||
| // `pushState(..., urlPushState)` on `urlA`, | ||
| history.pushState('blue', '', urlPushState.href); | ||
| }, | ||
| argsBeforeNavigation: [bfcacheDisabled, pushStateExecutorPath], | ||
| shouldBeCached: !bfcacheDisabled, | ||
| funcAfterAssertion: async (pageA) => { | ||
| // We've navigated to `urlB` and back again | ||
| // (already done within `runBfcacheTest()`). | ||
| // After the back navigation, `location` etc. should point to | ||
| // `urlPushState` and the state that's pushed. | ||
| const urlPushState = location.origin + pushStateExecutorPath + | ||
| '?uuid=' + pageA.context_id; | ||
| assert_equals(await pageA.execute_script(() => location.href), | ||
| urlPushState, 'url'); | ||
| assert_equals(await pageA.execute_script(() => history.state), | ||
| 'blue', 'history.state'); | ||
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||
| if (bfcacheDisabled) { | ||
| // When the page is not restored from BFCache, the HTML page is loaded | ||
| // from `urlPushState` (not from `urlA`). | ||
| assert_true(await pageA.execute_script(() => isLoadedFromPushState), | ||
| 'document should be loaded from urlPushState'); | ||
| } | ||
| } | ||
| }, 'back navigation to pushState()d page (' + | ||
| (bfcacheDisabled ? 'not ' : '') + 'in BFCache)'); | ||
| } | ||
| </script> |
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...tests/html/browsers/browsing-the-web/back-forward-cache/resources/executor-pushstate.html
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| <!DOCTYPE HTML> | ||
| <script src="/common/dispatcher/dispatcher.js"></script> | ||
| <script src="event-recorder.js" type="module"></script> | ||
| <script src="worker-helper.js" type="module"></script> | ||
| <script type="module"> | ||
| // This is mostly the same as `executor.html`, except for | ||
| // `isLoadedFromPushState` is set here, in order to detect whether the page | ||
| // was loaded from `executor.html` or `executor-pushstate.html`. | ||
| // Full executor functionality is still needed to handle remote script | ||
| // execution requests etc. | ||
| window.isLoadedFromPushState = true; | ||
| </script> | ||
| <script src="executor.js" type="module"></script> |
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...eb-platform/tests/html/browsers/browsing-the-web/back-forward-cache/resources/executor.js
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| const params = new URLSearchParams(window.location.search); | ||
| const uuid = params.get('uuid'); | ||
|
|
||
| // Executor and BFCache detection | ||
|
|
||
| // When navigating out from this page, always call | ||
| // `prepareNavigation(callback)` synchronously from the script injected by | ||
| // `RemoteContext.execute_script()`, and trigger navigation on or after the | ||
| // callback is called. | ||
| // prepareNavigation() suspends task polling and avoid in-flight fetch | ||
| // requests during navigation that might evict the page from BFCache. | ||
| // | ||
| // When we navigate to the page again, task polling is resumed, either | ||
| // - (BFCache cases) when the pageshow event listener added by | ||
| // prepareNavigation() is executed, or | ||
| // - (Non-BFCache cases) when `Executor.execute()` is called again during | ||
| // non-BFCache page loading. | ||
| // | ||
| // In such scenarios, `assert_bfcached()` etc. in `helper.sub.js` can determine | ||
| // whether the page is restored from BFCache or not, by observing | ||
| // - `isPageshowFired`: whether the pageshow event listener added by the | ||
| // prepareNavigation() before navigating out, and | ||
| // - `loadCount`: whether this inline script is evaluated again. | ||
| // - `isPageshowPersisted` is used to assert that `event.persisted` is true | ||
| // when restored from BFCache. | ||
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| window.isPageshowFired = false; | ||
| window.isPageshowPersisted = null; | ||
| window.loadCount = parseInt(localStorage.getItem(uuid + '.loadCount') || '0') + 1; | ||
| localStorage.setItem(uuid + '.loadCount', loadCount); | ||
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| window.pageShowPromise = new Promise(resolve => | ||
| window.addEventListener('pageshow', resolve, {once: true})); | ||
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| const executor = new Executor(uuid); | ||
|
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| window.prepareNavigation = function(callback) { | ||
| window.addEventListener( | ||
| 'pageshow', | ||
| (event) => { | ||
| window.isPageshowFired = true; | ||
| window.isPageshowPersisted = event.persisted; | ||
| executor.resume(); | ||
| }, | ||
| {once: true}); | ||
| executor.suspend(callback); | ||
| } | ||
|
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||
| // Try to disable BFCache by acquiring and never releasing a Web Lock. | ||
| // This requires HTTPS. | ||
| // Note: This is a workaround depending on non-specified WebLock+BFCache | ||
| // behavior, and doesn't work on Safari. We might want to introduce a | ||
| // test-only BFCache-disabling API instead in the future. | ||
| // https://github.com/web-platform-tests/wpt/issues/16359#issuecomment-795004780 | ||
| // https://crbug.com/1298336 | ||
| window.disableBFCache = () => { | ||
| return new Promise(resolve => { | ||
| // Use page's UUID as a unique lock name. | ||
| navigator.locks.request(uuid, () => { | ||
| resolve(); | ||
| return new Promise(() => {}); | ||
| }); | ||
| }); | ||
| }; |