[Fiber] Clean up ViewTransition when it fails to start - #34676

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sebmarkbage merged 1 commit into
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sebmarkbage:transitionfinally
Oct 2, 2025
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[Fiber] Clean up ViewTransition when it fails to start#34676
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:transitionfinally

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@sebmarkbage

@sebmarkbagesebmarkbage commented Oct 2, 2025

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The View Transition docs were unclear about this but apparently the finished promise never settles if the animation never started. So if there's an error that rejects the ready promise, we'll never run the clean up which can cause it to stall.

Fixes#34662.

However, ultimately that is caused by Chrome stalling our default onDefaultTransitionIndicator but it should be unblocked after 10 seconds, not a minute.

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@sebmarkbage
sebmarkbage merged commit d74f061 into react:mainOct 2, 2025
247 checks passed
github-actionsBot pushed a commit that referenced this pull request Oct 2, 2025
The View Transition docs were unclear about this but apparently the
`finished` promise never settles if the animation never started. So if
there's an error that rejects the `ready` promise, we'll never run the
clean up which can cause it to stall.
Fixes#34662.
However, ultimately that is caused by Chrome stalling our default
`onDefaultTransitionIndicator` but it should be unblocked after 10
seconds, not a minute.
DiffTrain build for [d74f061](d74f061)
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Bug: ViewTransition can stall transitions for ~60s

3 participants

@sebmarkbage@react-sizebot@rickhanlonii
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
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[Fiber] Clean up ViewTransition when it fails to start - #34676

Merged
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:transitionfinally
Oct 2, 2025
Merged

[Fiber] Clean up ViewTransition when it fails to start#34676
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:transitionfinally

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@sebmarkbage

@sebmarkbagesebmarkbage commented Oct 2, 2025

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The View Transition docs were unclear about this but apparently the finished promise never settles if the animation never started. So if there's an error that rejects the ready promise, we'll never run the clean up which can cause it to stall.

Fixes#34662.

However, ultimately that is caused by Chrome stalling our default onDefaultTransitionIndicator but it should be unblocked after 10 seconds, not a minute.

@github-actionsgithub-actionsBot added the React Core Team Opened by a member of the React Core Team label Oct 2, 2025
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The size diff is too large to display in a single comment. The GitHub action for this pull request contains an artifact called 'sizebot-message.md' with the full message.

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@sebmarkbage
sebmarkbage merged commit d74f061 into react:mainOct 2, 2025
247 checks passed
github-actionsBot pushed a commit that referenced this pull request Oct 2, 2025
The View Transition docs were unclear about this but apparently the
`finished` promise never settles if the animation never started. So if
there's an error that rejects the `ready` promise, we'll never run the
clean up which can cause it to stall.
Fixes#34662.
However, ultimately that is caused by Chrome stalling our default
`onDefaultTransitionIndicator` but it should be unblocked after 10
seconds, not a minute.
DiffTrain build for [d74f061](d74f061)
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Bug: ViewTransition can stall transitions for ~60s

3 participants

@sebmarkbage@react-sizebot@rickhanlonii
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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[Fiber] Clean up ViewTransition when it fails to start - #34676

Merged
sebmarkbage merged 1 commit into
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sebmarkbage:transitionfinally
Oct 2, 2025
Merged

[Fiber] Clean up ViewTransition when it fails to start#34676
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:transitionfinally

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@sebmarkbage

@sebmarkbagesebmarkbage commented Oct 2, 2025

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The View Transition docs were unclear about this but apparently the finished promise never settles if the animation never started. So if there's an error that rejects the ready promise, we'll never run the clean up which can cause it to stall.

Fixes#34662.

However, ultimately that is caused by Chrome stalling our default onDefaultTransitionIndicator but it should be unblocked after 10 seconds, not a minute.

@github-actionsgithub-actionsBot added the React Core Team Opened by a member of the React Core Team label Oct 2, 2025
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The size diff is too large to display in a single comment. The GitHub action for this pull request contains an artifact called 'sizebot-message.md' with the full message.

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@sebmarkbage
sebmarkbage merged commit d74f061 into react:mainOct 2, 2025
247 checks passed
github-actionsBot pushed a commit that referenced this pull request Oct 2, 2025
The View Transition docs were unclear about this but apparently the
`finished` promise never settles if the animation never started. So if
there's an error that rejects the `ready` promise, we'll never run the
clean up which can cause it to stall.
Fixes#34662.
However, ultimately that is caused by Chrome stalling our default
`onDefaultTransitionIndicator` but it should be unblocked after 10
seconds, not a minute.
DiffTrain build for [d74f061](d74f061)
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Bug: ViewTransition can stall transitions for ~60s

3 participants

@sebmarkbage@react-sizebot@rickhanlonii
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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[Fiber] Clean up ViewTransition when it fails to start - #34676

Merged
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:transitionfinally
Oct 2, 2025
Merged

[Fiber] Clean up ViewTransition when it fails to start#34676
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:transitionfinally

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@sebmarkbage

@sebmarkbagesebmarkbage commented Oct 2, 2025

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The View Transition docs were unclear about this but apparently the finished promise never settles if the animation never started. So if there's an error that rejects the ready promise, we'll never run the clean up which can cause it to stall.

Fixes#34662.

However, ultimately that is caused by Chrome stalling our default onDefaultTransitionIndicator but it should be unblocked after 10 seconds, not a minute.

@github-actionsgithub-actionsBot added the React Core Team Opened by a member of the React Core Team label Oct 2, 2025
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The size diff is too large to display in a single comment. The GitHub action for this pull request contains an artifact called 'sizebot-message.md' with the full message.

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@sebmarkbage
sebmarkbage merged commit d74f061 into react:mainOct 2, 2025
247 checks passed
github-actionsBot pushed a commit that referenced this pull request Oct 2, 2025
The View Transition docs were unclear about this but apparently the
`finished` promise never settles if the animation never started. So if
there's an error that rejects the `ready` promise, we'll never run the
clean up which can cause it to stall.
Fixes#34662.
However, ultimately that is caused by Chrome stalling our default
`onDefaultTransitionIndicator` but it should be unblocked after 10
seconds, not a minute.
DiffTrain build for [d74f061](d74f061)
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Bug: ViewTransition can stall transitions for ~60s

3 participants

@sebmarkbage@react-sizebot@rickhanlonii
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
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[Fiber] Clean up ViewTransition when it fails to start - #34676

Merged
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:transitionfinally
Oct 2, 2025
Merged

[Fiber] Clean up ViewTransition when it fails to start#34676
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:transitionfinally

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@sebmarkbage

@sebmarkbagesebmarkbage commented Oct 2, 2025

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The View Transition docs were unclear about this but apparently the finished promise never settles if the animation never started. So if there's an error that rejects the ready promise, we'll never run the clean up which can cause it to stall.

Fixes#34662.

However, ultimately that is caused by Chrome stalling our default onDefaultTransitionIndicator but it should be unblocked after 10 seconds, not a minute.

@github-actionsgithub-actionsBot added the React Core Team Opened by a member of the React Core Team label Oct 2, 2025
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The size diff is too large to display in a single comment. The GitHub action for this pull request contains an artifact called 'sizebot-message.md' with the full message.

Generated by 🚫 dangerJS against 1c5c947

@sebmarkbage
sebmarkbage merged commit d74f061 into react:mainOct 2, 2025
247 checks passed
github-actionsBot pushed a commit that referenced this pull request Oct 2, 2025
The View Transition docs were unclear about this but apparently the
`finished` promise never settles if the animation never started. So if
there's an error that rejects the `ready` promise, we'll never run the
clean up which can cause it to stall.
Fixes#34662.
However, ultimately that is caused by Chrome stalling our default
`onDefaultTransitionIndicator` but it should be unblocked after 10
seconds, not a minute.
DiffTrain build for [d74f061](d74f061)
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Bug: ViewTransition can stall transitions for ~60s

3 participants

@sebmarkbage@react-sizebot@rickhanlonii
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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[Fiber] Clean up ViewTransition when it fails to start - #34676

Merged
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:transitionfinally
Oct 2, 2025
Merged

[Fiber] Clean up ViewTransition when it fails to start#34676
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:transitionfinally

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@sebmarkbage

@sebmarkbagesebmarkbage commented Oct 2, 2025

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The View Transition docs were unclear about this but apparently the finished promise never settles if the animation never started. So if there's an error that rejects the ready promise, we'll never run the clean up which can cause it to stall.

Fixes#34662.

However, ultimately that is caused by Chrome stalling our default onDefaultTransitionIndicator but it should be unblocked after 10 seconds, not a minute.

@github-actionsgithub-actionsBot added the React Core Team Opened by a member of the React Core Team label Oct 2, 2025
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The size diff is too large to display in a single comment. The GitHub action for this pull request contains an artifact called 'sizebot-message.md' with the full message.

Generated by 🚫 dangerJS against 1c5c947

@sebmarkbage
sebmarkbage merged commit d74f061 into react:mainOct 2, 2025
247 checks passed
github-actionsBot pushed a commit that referenced this pull request Oct 2, 2025
The View Transition docs were unclear about this but apparently the
`finished` promise never settles if the animation never started. So if
there's an error that rejects the `ready` promise, we'll never run the
clean up which can cause it to stall.
Fixes#34662.
However, ultimately that is caused by Chrome stalling our default
`onDefaultTransitionIndicator` but it should be unblocked after 10
seconds, not a minute.
DiffTrain build for [d74f061](d74f061)
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Bug: ViewTransition can stall transitions for ~60s

3 participants

@sebmarkbage@react-sizebot@rickhanlonii
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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[Fiber] Clean up ViewTransition when it fails to start - #34676

Merged
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:transitionfinally
Oct 2, 2025
Merged

[Fiber] Clean up ViewTransition when it fails to start#34676
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:transitionfinally

Conversation

@sebmarkbage

@sebmarkbagesebmarkbage commented Oct 2, 2025

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The View Transition docs were unclear about this but apparently the finished promise never settles if the animation never started. So if there's an error that rejects the ready promise, we'll never run the clean up which can cause it to stall.

Fixes#34662.

However, ultimately that is caused by Chrome stalling our default onDefaultTransitionIndicator but it should be unblocked after 10 seconds, not a minute.

@github-actionsgithub-actionsBot added the React Core Team Opened by a member of the React Core Team label Oct 2, 2025
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The size diff is too large to display in a single comment. The GitHub action for this pull request contains an artifact called 'sizebot-message.md' with the full message.

Generated by 🚫 dangerJS against 1c5c947

@sebmarkbage
sebmarkbage merged commit d74f061 into react:mainOct 2, 2025
247 checks passed
github-actionsBot pushed a commit that referenced this pull request Oct 2, 2025
The View Transition docs were unclear about this but apparently the
`finished` promise never settles if the animation never started. So if
there's an error that rejects the `ready` promise, we'll never run the
clean up which can cause it to stall.
Fixes#34662.
However, ultimately that is caused by Chrome stalling our default
`onDefaultTransitionIndicator` but it should be unblocked after 10
seconds, not a minute.
DiffTrain build for [d74f061](d74f061)
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Bug: ViewTransition can stall transitions for ~60s

3 participants

@sebmarkbage@react-sizebot@rickhanlonii
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
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[Fiber] Clean up ViewTransition when it fails to start - #34676

Merged
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:transitionfinally
Oct 2, 2025
Merged

[Fiber] Clean up ViewTransition when it fails to start#34676
sebmarkbage merged 1 commit into
react:mainfrom
sebmarkbage:transitionfinally

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@sebmarkbage

@sebmarkbagesebmarkbage commented Oct 2, 2025

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The View Transition docs were unclear about this but apparently the finished promise never settles if the animation never started. So if there's an error that rejects the ready promise, we'll never run the clean up which can cause it to stall.

Fixes#34662.

However, ultimately that is caused by Chrome stalling our default onDefaultTransitionIndicator but it should be unblocked after 10 seconds, not a minute.

@github-actionsgithub-actionsBot added the React Core Team Opened by a member of the React Core Team label Oct 2, 2025
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@sebmarkbage
sebmarkbage merged commit d74f061 into react:mainOct 2, 2025
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github-actionsBot pushed a commit that referenced this pull request Oct 2, 2025
The View Transition docs were unclear about this but apparently the
`finished` promise never settles if the animation never started. So if
there's an error that rejects the `ready` promise, we'll never run the
clean up which can cause it to stall.
Fixes#34662.
However, ultimately that is caused by Chrome stalling our default
`onDefaultTransitionIndicator` but it should be unblocked after 10
seconds, not a minute.
DiffTrain build for [d74f061](d74f061)
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Bug: ViewTransition can stall transitions for ~60s

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@sebmarkbage@react-sizebot@rickhanlonii