[pull] main from react:main#611

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Jul 21, 2026
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[pull] main from react:main #611

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7 changes: 5 additions & 2 deletions packages/react-dom-bindings/src/client/ReactFiberConfigDOM.js
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -3232,8 +3232,11 @@ FragmentInstance.prototype.blur = function (this: FragmentInstanceType): void {
const parentInstanceOrContainer = getInstanceFromHostFiber<
Instance | Container,
>(parentHostFiber);
// TODO: Handle parentInstanceOrContainer being a document
const activeElement = parentInstanceOrContainer.ownerDocument.activeElement;
// Instance is included in the Container type for DOM.
const ownerDocument = getOwnerDocumentFromRootContainer(
parentInstanceOrContainer,
);
const activeElement = ownerDocument.activeElement;
if (
activeElement === null ||
!parentInstanceOrContainer.contains(activeElement)
Expand Down
68 changes: 68 additions & 0 deletions packages/react-dom/src/__tests__/ReactDOMFragmentRefsDocument-test.js
View file
Open in desktop
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,68 @@
/**
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @emails reactcore
* @jest-environment node
*/

'use strict';

let JSDOM;
let React;
let ReactDOMClient;
let act;
let document;
let Fragment;

describe('FragmentRefs', () => {
beforeEach(() => {
jest.resetModules();
JSDOM = require('jsdom');
React = require('react');
Fragment = React.Fragment;
ReactDOMClient = require('react-dom/client');
act = require('internal-test-utils').act;

const jsdom = new JSDOM.JSDOM('');
document = jsdom.window.document;
global.window = jsdom.window;
global.document = global.window.document;
});

describe('focus methods', () => {
describe('blur()', () => {
// @gate enableFragmentRefs
it('throws when the nearest host parent is a Document container', async () => {
const fragmentRef = React.createRef();
const root = ReactDOMClient.createRoot(document);

await act(() => {
root.render(
<Fragment ref={fragmentRef}>
<html>
<body>
<a id="child-a" href="/">
A
</a>
</body>
</html>
</Fragment>,
);
});

await act(() => {
fragmentRef.current.focus();
});
expect(document.activeElement.id).toEqual('child-a');

await act(() => {
fragmentRef.current.blur();
});
expect(document.activeElement).toEqual(document.body);
});
});
});
});
Loading
, '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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[pull] main from react:main#611

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 Merged

pull
merged 1 commit into

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Jul 21, 2026
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[pull] main from react:main
#611
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7 changes: 5 additions & 2 deletions
packages/react-dom-bindings/src/client/ReactFiberConfigDOM.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -3232,8 +3232,11 @@ FragmentInstance.prototype.blur = function (this: FragmentInstanceType): void {
 const parentInstanceOrContainer = getInstanceFromHostFiber<
 Instance | Container,
 >(parentHostFiber);
 // TODO: Handle parentInstanceOrContainer being a document
 const activeElement = parentInstanceOrContainer.ownerDocument.activeElement;
 // Instance is included in the Container type for DOM.
 const ownerDocument = getOwnerDocumentFromRootContainer(
 parentInstanceOrContainer,
 );
 const activeElement = ownerDocument.activeElement;
 if (
 activeElement === null ||
 !parentInstanceOrContainer.contains(activeElement)
Expand Down

68 changes: 68 additions & 0 deletions
packages/react-dom/src/__tests__/ReactDOMFragmentRefsDocument-test.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,68 @@
/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @emails reactcore
 * @jest-environment node
 */

'use strict';

let JSDOM;
let React;
let ReactDOMClient;
let act;
let document;
let Fragment;

describe('FragmentRefs', () => {
 beforeEach(() => {
 jest.resetModules();
 JSDOM = require('jsdom');
 React = require('react');
 Fragment = React.Fragment;
 ReactDOMClient = require('react-dom/client');
 act = require('internal-test-utils').act;

 const jsdom = new JSDOM.JSDOM('');
 document = jsdom.window.document;
 global.window = jsdom.window;
 global.document = global.window.document;
 });

 describe('focus methods', () => {
 describe('blur()', () => {
 // @gate enableFragmentRefs
 it('throws when the nearest host parent is a Document container', async () => {
 const fragmentRef = React.createRef();
 const root = ReactDOMClient.createRoot(document);

 await act(() => {
 root.render(
 <Fragment ref={fragmentRef}>
 <html>
 <body>
 <a id="child-a" href="/">
 A
 </a>
 </body>
 </html>
 </Fragment>,
 );
 });

 await act(() => {
 fragmentRef.current.focus();
 });
 expect(document.activeElement.id).toEqual('child-a');

 await act(() => {
 fragmentRef.current.blur();
 });
 expect(document.activeElement).toEqual(document.body);
 });
 });
 });
});
Loading

, '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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[pull] main from react:main#611

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privacy statement. We’ll occasionally send you account related emails.

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to your account

 Merged

pull
merged 1 commit into

from

Jul 21, 2026
 Merged


[pull] main from react:main
#611
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7 changes: 5 additions & 2 deletions
packages/react-dom-bindings/src/client/ReactFiberConfigDOM.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -3232,8 +3232,11 @@ FragmentInstance.prototype.blur = function (this: FragmentInstanceType): void {
 const parentInstanceOrContainer = getInstanceFromHostFiber<
 Instance | Container,
 >(parentHostFiber);
 // TODO: Handle parentInstanceOrContainer being a document
 const activeElement = parentInstanceOrContainer.ownerDocument.activeElement;
 // Instance is included in the Container type for DOM.
 const ownerDocument = getOwnerDocumentFromRootContainer(
 parentInstanceOrContainer,
 );
 const activeElement = ownerDocument.activeElement;
 if (
 activeElement === null ||
 !parentInstanceOrContainer.contains(activeElement)
Expand Down

68 changes: 68 additions & 0 deletions
packages/react-dom/src/__tests__/ReactDOMFragmentRefsDocument-test.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,68 @@
/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @emails reactcore
 * @jest-environment node
 */

'use strict';

let JSDOM;
let React;
let ReactDOMClient;
let act;
let document;
let Fragment;

describe('FragmentRefs', () => {
 beforeEach(() => {
 jest.resetModules();
 JSDOM = require('jsdom');
 React = require('react');
 Fragment = React.Fragment;
 ReactDOMClient = require('react-dom/client');
 act = require('internal-test-utils').act;

 const jsdom = new JSDOM.JSDOM('');
 document = jsdom.window.document;
 global.window = jsdom.window;
 global.document = global.window.document;
 });

 describe('focus methods', () => {
 describe('blur()', () => {
 // @gate enableFragmentRefs
 it('throws when the nearest host parent is a Document container', async () => {
 const fragmentRef = React.createRef();
 const root = ReactDOMClient.createRoot(document);

 await act(() => {
 root.render(
 <Fragment ref={fragmentRef}>
 <html>
 <body>
 <a id="child-a" href="/">
 A
 </a>
 </body>
 </html>
 </Fragment>,
 );
 });

 await act(() => {
 fragmentRef.current.focus();
 });
 expect(document.activeElement.id).toEqual('child-a');

 await act(() => {
 fragmentRef.current.blur();
 });
 expect(document.activeElement).toEqual(document.body);
 });
 });
 });
});
Loading

, '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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[pull] main from react:main#611

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 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

pull
merged 1 commit into

from

Jul 21, 2026
 Merged


[pull] main from react:main
#611
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7 changes: 5 additions & 2 deletions
packages/react-dom-bindings/src/client/ReactFiberConfigDOM.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -3232,8 +3232,11 @@ FragmentInstance.prototype.blur = function (this: FragmentInstanceType): void {
 const parentInstanceOrContainer = getInstanceFromHostFiber<
 Instance | Container,
 >(parentHostFiber);
 // TODO: Handle parentInstanceOrContainer being a document
 const activeElement = parentInstanceOrContainer.ownerDocument.activeElement;
 // Instance is included in the Container type for DOM.
 const ownerDocument = getOwnerDocumentFromRootContainer(
 parentInstanceOrContainer,
 );
 const activeElement = ownerDocument.activeElement;
 if (
 activeElement === null ||
 !parentInstanceOrContainer.contains(activeElement)
Expand Down

68 changes: 68 additions & 0 deletions
packages/react-dom/src/__tests__/ReactDOMFragmentRefsDocument-test.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,68 @@
/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @emails reactcore
 * @jest-environment node
 */

'use strict';

let JSDOM;
let React;
let ReactDOMClient;
let act;
let document;
let Fragment;

describe('FragmentRefs', () => {
 beforeEach(() => {
 jest.resetModules();
 JSDOM = require('jsdom');
 React = require('react');
 Fragment = React.Fragment;
 ReactDOMClient = require('react-dom/client');
 act = require('internal-test-utils').act;

 const jsdom = new JSDOM.JSDOM('');
 document = jsdom.window.document;
 global.window = jsdom.window;
 global.document = global.window.document;
 });

 describe('focus methods', () => {
 describe('blur()', () => {
 // @gate enableFragmentRefs
 it('throws when the nearest host parent is a Document container', async () => {
 const fragmentRef = React.createRef();
 const root = ReactDOMClient.createRoot(document);

 await act(() => {
 root.render(
 <Fragment ref={fragmentRef}>
 <html>
 <body>
 <a id="child-a" href="/">
 A
 </a>
 </body>
 </html>
 </Fragment>,
 );
 });

 await act(() => {
 fragmentRef.current.focus();
 });
 expect(document.activeElement.id).toEqual('child-a');

 await act(() => {
 fragmentRef.current.blur();
 });
 expect(document.activeElement).toEqual(document.body);
 });
 });
 });
});
Loading

, '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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[pull] main from react:main#611

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 Merged

pull
merged 1 commit into

from

Jul 21, 2026
 Merged


[pull] main from react:main
#611
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7 changes: 5 additions & 2 deletions
packages/react-dom-bindings/src/client/ReactFiberConfigDOM.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -3232,8 +3232,11 @@ FragmentInstance.prototype.blur = function (this: FragmentInstanceType): void {
 const parentInstanceOrContainer = getInstanceFromHostFiber<
 Instance | Container,
 >(parentHostFiber);
 // TODO: Handle parentInstanceOrContainer being a document
 const activeElement = parentInstanceOrContainer.ownerDocument.activeElement;
 // Instance is included in the Container type for DOM.
 const ownerDocument = getOwnerDocumentFromRootContainer(
 parentInstanceOrContainer,
 );
 const activeElement = ownerDocument.activeElement;
 if (
 activeElement === null ||
 !parentInstanceOrContainer.contains(activeElement)
Expand Down

68 changes: 68 additions & 0 deletions
packages/react-dom/src/__tests__/ReactDOMFragmentRefsDocument-test.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,68 @@
/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @emails reactcore
 * @jest-environment node
 */

'use strict';

let JSDOM;
let React;
let ReactDOMClient;
let act;
let document;
let Fragment;

describe('FragmentRefs', () => {
 beforeEach(() => {
 jest.resetModules();
 JSDOM = require('jsdom');
 React = require('react');
 Fragment = React.Fragment;
 ReactDOMClient = require('react-dom/client');
 act = require('internal-test-utils').act;

 const jsdom = new JSDOM.JSDOM('');
 document = jsdom.window.document;
 global.window = jsdom.window;
 global.document = global.window.document;
 });

 describe('focus methods', () => {
 describe('blur()', () => {
 // @gate enableFragmentRefs
 it('throws when the nearest host parent is a Document container', async () => {
 const fragmentRef = React.createRef();
 const root = ReactDOMClient.createRoot(document);

 await act(() => {
 root.render(
 <Fragment ref={fragmentRef}>
 <html>
 <body>
 <a id="child-a" href="/">
 A
 </a>
 </body>
 </html>
 </Fragment>,
 );
 });

 await act(() => {
 fragmentRef.current.focus();
 });
 expect(document.activeElement.id).toEqual('child-a');

 await act(() => {
 fragmentRef.current.blur();
 });
 expect(document.activeElement).toEqual(document.body);
 });
 });
 });
});
Loading

, '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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[pull] main from react:main#611

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 Merged

pull
merged 1 commit into

from

Jul 21, 2026
 Merged


[pull] main from react:main
#611
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7 changes: 5 additions & 2 deletions
packages/react-dom-bindings/src/client/ReactFiberConfigDOM.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -3232,8 +3232,11 @@ FragmentInstance.prototype.blur = function (this: FragmentInstanceType): void {
 const parentInstanceOrContainer = getInstanceFromHostFiber<
 Instance | Container,
 >(parentHostFiber);
 // TODO: Handle parentInstanceOrContainer being a document
 const activeElement = parentInstanceOrContainer.ownerDocument.activeElement;
 // Instance is included in the Container type for DOM.
 const ownerDocument = getOwnerDocumentFromRootContainer(
 parentInstanceOrContainer,
 );
 const activeElement = ownerDocument.activeElement;
 if (
 activeElement === null ||
 !parentInstanceOrContainer.contains(activeElement)
Expand Down

68 changes: 68 additions & 0 deletions
packages/react-dom/src/__tests__/ReactDOMFragmentRefsDocument-test.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,68 @@
/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @emails reactcore
 * @jest-environment node
 */

'use strict';

let JSDOM;
let React;
let ReactDOMClient;
let act;
let document;
let Fragment;

describe('FragmentRefs', () => {
 beforeEach(() => {
 jest.resetModules();
 JSDOM = require('jsdom');
 React = require('react');
 Fragment = React.Fragment;
 ReactDOMClient = require('react-dom/client');
 act = require('internal-test-utils').act;

 const jsdom = new JSDOM.JSDOM('');
 document = jsdom.window.document;
 global.window = jsdom.window;
 global.document = global.window.document;
 });

 describe('focus methods', () => {
 describe('blur()', () => {
 // @gate enableFragmentRefs
 it('throws when the nearest host parent is a Document container', async () => {
 const fragmentRef = React.createRef();
 const root = ReactDOMClient.createRoot(document);

 await act(() => {
 root.render(
 <Fragment ref={fragmentRef}>
 <html>
 <body>
 <a id="child-a" href="/">
 A
 </a>
 </body>
 </html>
 </Fragment>,
 );
 });

 await act(() => {
 fragmentRef.current.focus();
 });
 expect(document.activeElement.id).toEqual('child-a');

 await act(() => {
 fragmentRef.current.blur();
 });
 expect(document.activeElement).toEqual(document.body);
 });
 });
 });
});
Loading

, '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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[pull] main from react:main#611

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Jul 21, 2026
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[pull] main from react:main
#611
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7 changes: 5 additions & 2 deletions
packages/react-dom-bindings/src/client/ReactFiberConfigDOM.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -3232,8 +3232,11 @@ FragmentInstance.prototype.blur = function (this: FragmentInstanceType): void {
 const parentInstanceOrContainer = getInstanceFromHostFiber<
 Instance | Container,
 >(parentHostFiber);
 // TODO: Handle parentInstanceOrContainer being a document
 const activeElement = parentInstanceOrContainer.ownerDocument.activeElement;
 // Instance is included in the Container type for DOM.
 const ownerDocument = getOwnerDocumentFromRootContainer(
 parentInstanceOrContainer,
 );
 const activeElement = ownerDocument.activeElement;
 if (
 activeElement === null ||
 !parentInstanceOrContainer.contains(activeElement)
Expand Down

68 changes: 68 additions & 0 deletions
packages/react-dom/src/__tests__/ReactDOMFragmentRefsDocument-test.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,68 @@
/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @emails reactcore
 * @jest-environment node
 */

'use strict';

let JSDOM;
let React;
let ReactDOMClient;
let act;
let document;
let Fragment;

describe('FragmentRefs', () => {
 beforeEach(() => {
 jest.resetModules();
 JSDOM = require('jsdom');
 React = require('react');
 Fragment = React.Fragment;
 ReactDOMClient = require('react-dom/client');
 act = require('internal-test-utils').act;

 const jsdom = new JSDOM.JSDOM('');
 document = jsdom.window.document;
 global.window = jsdom.window;
 global.document = global.window.document;
 });

 describe('focus methods', () => {
 describe('blur()', () => {
 // @gate enableFragmentRefs
 it('throws when the nearest host parent is a Document container', async () => {
 const fragmentRef = React.createRef();
 const root = ReactDOMClient.createRoot(document);

 await act(() => {
 root.render(
 <Fragment ref={fragmentRef}>
 <html>
 <body>
 <a id="child-a" href="/">
 A
 </a>
 </body>
 </html>
 </Fragment>,
 );
 });

 await act(() => {
 fragmentRef.current.focus();
 });
 expect(document.activeElement.id).toEqual('child-a');

 await act(() => {
 fragmentRef.current.blur();
 });
 expect(document.activeElement).toEqual(document.body);
 });
 });
 });
});
Loading

, '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); }
})();
})();

Skip to content
[pull] main from react:main#611

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

pull
merged 1 commit into

from

Jul 21, 2026
 Merged


[pull] main from react:main
#611
Show file tree
Hide file tree
 Changes from all commits
Commits

Show all changes


1 commit


Select commit


File filter

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Conversations

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Loading
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7 changes: 5 additions & 2 deletions
packages/react-dom-bindings/src/client/ReactFiberConfigDOM.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -3232,8 +3232,11 @@ FragmentInstance.prototype.blur = function (this: FragmentInstanceType): void {
 const parentInstanceOrContainer = getInstanceFromHostFiber<
 Instance | Container,
 >(parentHostFiber);
 // TODO: Handle parentInstanceOrContainer being a document
 const activeElement = parentInstanceOrContainer.ownerDocument.activeElement;
 // Instance is included in the Container type for DOM.
 const ownerDocument = getOwnerDocumentFromRootContainer(
 parentInstanceOrContainer,
 );
 const activeElement = ownerDocument.activeElement;
 if (
 activeElement === null ||
 !parentInstanceOrContainer.contains(activeElement)
Expand Down

68 changes: 68 additions & 0 deletions
packages/react-dom/src/__tests__/ReactDOMFragmentRefsDocument-test.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,68 @@
/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @emails reactcore
 * @jest-environment node
 */

'use strict';

let JSDOM;
let React;
let ReactDOMClient;
let act;
let document;
let Fragment;

describe('FragmentRefs', () => {
 beforeEach(() => {
 jest.resetModules();
 JSDOM = require('jsdom');
 React = require('react');
 Fragment = React.Fragment;
 ReactDOMClient = require('react-dom/client');
 act = require('internal-test-utils').act;

 const jsdom = new JSDOM.JSDOM('');
 document = jsdom.window.document;
 global.window = jsdom.window;
 global.document = global.window.document;
 });

 describe('focus methods', () => {
 describe('blur()', () => {
 // @gate enableFragmentRefs
 it('throws when the nearest host parent is a Document container', async () => {
 const fragmentRef = React.createRef();
 const root = ReactDOMClient.createRoot(document);

 await act(() => {
 root.render(
 <Fragment ref={fragmentRef}>
 <html>
 <body>
 <a id="child-a" href="/">
 A
 </a>
 </body>
 </html>
 </Fragment>,
 );
 });

 await act(() => {
 fragmentRef.current.focus();
 });
 expect(document.activeElement.id).toEqual('child-a');

 await act(() => {
 fragmentRef.current.blur();
 });
 expect(document.activeElement).toEqual(document.body);
 });
 });
 });
});
Loading