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Add support for event information in React scheduler tracks in React Native - #35947

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rubennorte merged 1 commit into
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rubennorte:show-event-into-in-react-perf-tracks-in-rn
Mar 3, 2026
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Add support for event information in React scheduler tracks in React Native#35947
rubennorte merged 1 commit into
react:mainfrom
rubennorte:show-event-into-in-react-perf-tracks-in-rn

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@rubennorterubennorte commented Mar 3, 2026

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Summary

This defines the same fiber configuration for RN as used in DOM, so we can expose event timing information in the React scheduler tracks in performance traces.

This was unblocked by #35913 and #35912.

How did you test this change?

Manually compiled the renderer and tested e2e in FB infra:
Screenshot 2026-03-03 at 10 10 44

@react-sizebot

react-sizebot commented Mar 3, 2026•
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Comparing: aac12ce...c57069b

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
oss-stable/react-dom/cjs/react-dom.production.js=6.84 kB6.84 kB+0.11%1.88 kB1.88 kB
oss-stable/react-dom/cjs/react-dom-client.production.js=611.79 kB611.79 kB=108.12 kB108.12 kB
oss-experimental/react-dom/cjs/react-dom.production.js=6.84 kB6.84 kB+0.11%1.88 kB1.88 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js=677.72 kB677.72 kB=119.08 kB119.08 kB
facebook-www/ReactDOM-prod.classic.js=697.72 kB697.72 kB=122.59 kB122.59 kB
facebook-www/ReactDOM-prod.modern.js=688.03 kB688.03 kB=120.97 kB120.97 kB

Significant size changes

Includes any change greater than 0.2%:

Expand to show
Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
react-native/implementations/ReactFabric-profiling.js+0.32%463.94 kB465.40 kB+0.41%77.96 kB78.28 kB
react-native/implementations/ReactFabric-profiling.fb.js+0.28%464.90 kB466.22 kB+0.44%78.23 kB78.57 kB

Generated by 🚫 dangerJS against c57069b

@rubennorte
rubennorteforce-pushed the show-event-into-in-react-perf-tracks-in-rn branch from bfdedc1 to 627fa8fCompareMarch 3, 2026 10:42
hoxyq
hoxyq approved these changes Mar 3, 2026
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Looks great, please fix the ESLint violation and run yarn prettier-all.

@rubennorte
rubennorteforce-pushed the show-event-into-in-react-perf-tracks-in-rn branch from 627fa8f to c57069bCompareMarch 3, 2026 12:28
@rubennorte
rubennorte merged commit 4cc5b7a into react:mainMar 3, 2026
235 checks passed
github-actionsBot pushed a commit that referenced this pull request Mar 3, 2026
@rubennorte
Add support for event information in React scheduler tracks in React …
809350a
…Native (#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by #35913 and #35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](4cc5b7a)
@nextjs-botnextjs-bot mentioned this pull request Mar 3, 2026
Merged
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Mar 7, 2026
@pull
Add support for event information in React scheduler tracks in React …
da8969c
…Native (react#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by react#35913 and react#35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](react@4cc5b7a)
github-actionsBot pushed a commit to code/lib-react that referenced this pull request Mar 7, 2026
@pull
Add support for event information in React scheduler tracks in React …
8ede614
…Native (react#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by react#35913 and react#35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](react@4cc5b7a)
@rubennorterubennorte mentioned this pull request Jun 5, 2026
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@rubennorte@react-sizebot@hoxyq
, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
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(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
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;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
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addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
Add support for event information in React scheduler tracks in React Native by rubennorte · Pull Request #35947 · react/react · GitHub
Skip to content
Add support for event information in React scheduler tracks in React Native - #35947
Merged
rubennorte merged 1 commit into
react:mainfrom 
rubennorte:show-event-into-in-react-perf-tracks-in-rn
Mar 3, 2026
Merged
Add support for event information in React scheduler tracks in React Native#35947
rubennorte merged 1 commit into
react:mainfrom 
rubennorte:show-event-into-in-react-perf-tracks-in-rn
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@rubennorte
@rubennorterubennorte
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Mar 3, 2026

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Summary
This defines the same fiber configuration for RN as used in DOM, so we can expose event timing information in the React scheduler tracks in performance traces.
This was unblocked by #35913 and #35912.
How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
Screenshot 2026-03-03 at 10 10 44
@react-sizebot
react-sizebot
commented
Mar 3, 2026•

edited

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Comparing: aac12ce...c57069b
Critical size changes
Includes critical production bundles, as well as any change greater than 2%:
Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
oss-stable/react-dom/cjs/react-dom.production.js=6.84 kB6.84 kB+0.11%1.88 kB1.88 kB
oss-stable/react-dom/cjs/react-dom-client.production.js=611.79 kB611.79 kB=108.12 kB108.12 kB
oss-experimental/react-dom/cjs/react-dom.production.js=6.84 kB6.84 kB+0.11%1.88 kB1.88 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js=677.72 kB677.72 kB=119.08 kB119.08 kB
facebook-www/ReactDOM-prod.classic.js=697.72 kB697.72 kB=122.59 kB122.59 kB
facebook-www/ReactDOM-prod.modern.js=688.03 kB688.03 kB=120.97 kB120.97 kB
Significant size changes
Includes any change greater than 0.2%:
Expand to show
Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
react-native/implementations/ReactFabric-profiling.js+0.32%463.94 kB465.40 kB+0.41%77.96 kB78.28 kB
react-native/implementations/ReactFabric-profiling.fb.js+0.28%464.90 kB466.22 kB+0.44%78.23 kB78.57 kB

Generated by 🚫 dangerJS against c57069b
@rubennorte
rubennorteforce-pushed
the
show-event-into-in-react-perf-tracks-in-rn
branch
from
bfdedc1 to
627fa8fCompareMarch 3, 2026 10:42
hoxyq
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Looks great, please fix the ESLint violation and run yarn prettier-all.
@rubennorte
rubennorteforce-pushed
the
show-event-into-in-react-perf-tracks-in-rn
branch
from
627fa8f to
c57069bCompareMarch 3, 2026 12:28
@rubennorte
rubennorte
merged commit 4cc5b7a
into
react:mainMar 3, 2026

235 checks passed

github-actionsBot
pushed a commit
that referenced
this pull request
Mar 3, 2026
@rubennorte
Add support for event information in React scheduler tracks in React …
809350a
…Native (#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by #35913 and #35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](4cc5b7a)
@nextjs-botnextjs-bot
mentioned this pull request
Mar 3, 2026
 Merged

github-actionsBot
pushed a commit
to code/lib-react
that referenced
this pull request
Mar 7, 2026
@pull
Add support for event information in React scheduler tracks in React …
da8969c
…Native (react#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by react#35913 and react#35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](react@4cc5b7a)
github-actionsBot
pushed a commit
to code/lib-react
that referenced
this pull request
Mar 7, 2026
@pull
Add support for event information in React scheduler tracks in React …
8ede614
…Native (react#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by react#35913 and react#35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](react@4cc5b7a)
@rubennorterubennorte
mentioned this pull request
Jun 5, 2026
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@javachejavacheAwaiting requested review from javache
@sammy-SCsammy-SCAwaiting requested review from sammy-SC
@huntiehuntieAwaiting requested review from huntie
@emily8rownemily8rownAwaiting requested review from emily8rown

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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
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.markdown-body img { background: #0d1117; }
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.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Add support for event information in React scheduler tracks in React Native by rubennorte · Pull Request #35947 · react/react · GitHub
Skip to content
Add support for event information in React scheduler tracks in React Native - #35947
Merged
rubennorte merged 1 commit into
react:mainfrom 
rubennorte:show-event-into-in-react-perf-tracks-in-rn
Mar 3, 2026
Merged
Add support for event information in React scheduler tracks in React Native#35947
rubennorte merged 1 commit into
react:mainfrom 
rubennorte:show-event-into-in-react-perf-tracks-in-rn
Conversation
@rubennorte
@rubennorterubennorte
commented
Mar 3, 2026

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Summary
This defines the same fiber configuration for RN as used in DOM, so we can expose event timing information in the React scheduler tracks in performance traces.
This was unblocked by #35913 and #35912.
How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
Screenshot 2026-03-03 at 10 10 44
@react-sizebot
react-sizebot
commented
Mar 3, 2026•

edited

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Comparing: aac12ce...c57069b
Critical size changes
Includes critical production bundles, as well as any change greater than 2%:
Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
oss-stable/react-dom/cjs/react-dom.production.js=6.84 kB6.84 kB+0.11%1.88 kB1.88 kB
oss-stable/react-dom/cjs/react-dom-client.production.js=611.79 kB611.79 kB=108.12 kB108.12 kB
oss-experimental/react-dom/cjs/react-dom.production.js=6.84 kB6.84 kB+0.11%1.88 kB1.88 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js=677.72 kB677.72 kB=119.08 kB119.08 kB
facebook-www/ReactDOM-prod.classic.js=697.72 kB697.72 kB=122.59 kB122.59 kB
facebook-www/ReactDOM-prod.modern.js=688.03 kB688.03 kB=120.97 kB120.97 kB
Significant size changes
Includes any change greater than 0.2%:
Expand to show
Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
react-native/implementations/ReactFabric-profiling.js+0.32%463.94 kB465.40 kB+0.41%77.96 kB78.28 kB
react-native/implementations/ReactFabric-profiling.fb.js+0.28%464.90 kB466.22 kB+0.44%78.23 kB78.57 kB

Generated by 🚫 dangerJS against c57069b
@rubennorte
rubennorteforce-pushed
the
show-event-into-in-react-perf-tracks-in-rn
branch
from
bfdedc1 to
627fa8fCompareMarch 3, 2026 10:42
hoxyq
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approved these changes
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Looks great, please fix the ESLint violation and run yarn prettier-all.
@rubennorte
rubennorteforce-pushed
the
show-event-into-in-react-perf-tracks-in-rn
branch
from
627fa8f to
c57069bCompareMarch 3, 2026 12:28
@rubennorte
rubennorte
merged commit 4cc5b7a
into
react:mainMar 3, 2026

235 checks passed

github-actionsBot
pushed a commit
that referenced
this pull request
Mar 3, 2026
@rubennorte
Add support for event information in React scheduler tracks in React …
809350a
…Native (#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by #35913 and #35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](4cc5b7a)
@nextjs-botnextjs-bot
mentioned this pull request
Mar 3, 2026
 Merged

github-actionsBot
pushed a commit
to code/lib-react
that referenced
this pull request
Mar 7, 2026
@pull
Add support for event information in React scheduler tracks in React …
da8969c
…Native (react#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by react#35913 and react#35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](react@4cc5b7a)
github-actionsBot
pushed a commit
to code/lib-react
that referenced
this pull request
Mar 7, 2026
@pull
Add support for event information in React scheduler tracks in React …
8ede614
…Native (react#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by react#35913 and react#35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](react@4cc5b7a)
@rubennorterubennorte
mentioned this pull request
Jun 5, 2026
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@javachejavacheAwaiting requested review from javache
@sammy-SCsammy-SCAwaiting requested review from sammy-SC
@huntiehuntieAwaiting requested review from huntie
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
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style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Add support for event information in React scheduler tracks in React Native by rubennorte · Pull Request #35947 · react/react · GitHub
Skip to content
Add support for event information in React scheduler tracks in React Native - #35947
Merged
rubennorte merged 1 commit into
react:mainfrom 
rubennorte:show-event-into-in-react-perf-tracks-in-rn
Mar 3, 2026
Merged
Add support for event information in React scheduler tracks in React Native#35947
rubennorte merged 1 commit into
react:mainfrom 
rubennorte:show-event-into-in-react-perf-tracks-in-rn
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Summary
This defines the same fiber configuration for RN as used in DOM, so we can expose event timing information in the React scheduler tracks in performance traces.
This was unblocked by #35913 and #35912.
How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
Screenshot 2026-03-03 at 10 10 44
@react-sizebot
react-sizebot
commented
Mar 3, 2026•

edited

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Comparing: aac12ce...c57069b
Critical size changes
Includes critical production bundles, as well as any change greater than 2%:
Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
oss-stable/react-dom/cjs/react-dom.production.js=6.84 kB6.84 kB+0.11%1.88 kB1.88 kB
oss-stable/react-dom/cjs/react-dom-client.production.js=611.79 kB611.79 kB=108.12 kB108.12 kB
oss-experimental/react-dom/cjs/react-dom.production.js=6.84 kB6.84 kB+0.11%1.88 kB1.88 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js=677.72 kB677.72 kB=119.08 kB119.08 kB
facebook-www/ReactDOM-prod.classic.js=697.72 kB697.72 kB=122.59 kB122.59 kB
facebook-www/ReactDOM-prod.modern.js=688.03 kB688.03 kB=120.97 kB120.97 kB
Significant size changes
Includes any change greater than 0.2%:
Expand to show
Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
react-native/implementations/ReactFabric-profiling.js+0.32%463.94 kB465.40 kB+0.41%77.96 kB78.28 kB
react-native/implementations/ReactFabric-profiling.fb.js+0.28%464.90 kB466.22 kB+0.44%78.23 kB78.57 kB

Generated by 🚫 dangerJS against c57069b
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Looks great, please fix the ESLint violation and run yarn prettier-all.
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@rubennorte
Add support for event information in React scheduler tracks in React …
809350a
…Native (#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by #35913 and #35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](4cc5b7a)
@nextjs-botnextjs-bot
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github-actionsBot
pushed a commit
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@pull
Add support for event information in React scheduler tracks in React …
da8969c
…Native (react#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by react#35913 and react#35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](react@4cc5b7a)
github-actionsBot
pushed a commit
to code/lib-react
that referenced
this pull request
Mar 7, 2026
@pull
Add support for event information in React scheduler tracks in React …
8ede614
…Native (react#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by react#35913 and react#35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](react@4cc5b7a)
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
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});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
Add support for event information in React scheduler tracks in React Native by rubennorte · Pull Request #35947 · react/react · GitHub
Skip to content
Add support for event information in React scheduler tracks in React Native - #35947
Merged
rubennorte merged 1 commit into
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rubennorte:show-event-into-in-react-perf-tracks-in-rn
Mar 3, 2026
Merged
Add support for event information in React scheduler tracks in React Native#35947
rubennorte merged 1 commit into
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Summary
This defines the same fiber configuration for RN as used in DOM, so we can expose event timing information in the React scheduler tracks in performance traces.
This was unblocked by #35913 and #35912.
How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
Screenshot 2026-03-03 at 10 10 44
@react-sizebot
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Mar 3, 2026•

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Comparing: aac12ce...c57069b
Critical size changes
Includes critical production bundles, as well as any change greater than 2%:
Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
oss-stable/react-dom/cjs/react-dom.production.js=6.84 kB6.84 kB+0.11%1.88 kB1.88 kB
oss-stable/react-dom/cjs/react-dom-client.production.js=611.79 kB611.79 kB=108.12 kB108.12 kB
oss-experimental/react-dom/cjs/react-dom.production.js=6.84 kB6.84 kB+0.11%1.88 kB1.88 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js=677.72 kB677.72 kB=119.08 kB119.08 kB
facebook-www/ReactDOM-prod.classic.js=697.72 kB697.72 kB=122.59 kB122.59 kB
facebook-www/ReactDOM-prod.modern.js=688.03 kB688.03 kB=120.97 kB120.97 kB
Significant size changes
Includes any change greater than 0.2%:
Expand to show
Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
react-native/implementations/ReactFabric-profiling.js+0.32%463.94 kB465.40 kB+0.41%77.96 kB78.28 kB
react-native/implementations/ReactFabric-profiling.fb.js+0.28%464.90 kB466.22 kB+0.44%78.23 kB78.57 kB

Generated by 🚫 dangerJS against c57069b
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Looks great, please fix the ESLint violation and run yarn prettier-all.
@rubennorte
rubennorteforce-pushed
the
show-event-into-in-react-perf-tracks-in-rn
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627fa8f to
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@rubennorte
rubennorte
merged commit 4cc5b7a
into
react:mainMar 3, 2026

235 checks passed

github-actionsBot
pushed a commit
that referenced
this pull request
Mar 3, 2026
@rubennorte
Add support for event information in React scheduler tracks in React …
809350a
…Native (#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by #35913 and #35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](4cc5b7a)
@nextjs-botnextjs-bot
mentioned this pull request
Mar 3, 2026
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github-actionsBot
pushed a commit
to code/lib-react
that referenced
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Mar 7, 2026
@pull
Add support for event information in React scheduler tracks in React …
da8969c
…Native (react#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by react#35913 and react#35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](react@4cc5b7a)
github-actionsBot
pushed a commit
to code/lib-react
that referenced
this pull request
Mar 7, 2026
@pull
Add support for event information in React scheduler tracks in React …
8ede614
…Native (react#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by react#35913 and react#35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](react@4cc5b7a)
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Add support for event information in React scheduler tracks in React Native by rubennorte · Pull Request #35947 · react/react · GitHub
Skip to content
Add support for event information in React scheduler tracks in React Native - #35947
Merged
rubennorte merged 1 commit into
react:mainfrom 
rubennorte:show-event-into-in-react-perf-tracks-in-rn
Mar 3, 2026
Merged
Add support for event information in React scheduler tracks in React Native#35947
rubennorte merged 1 commit into
react:mainfrom 
rubennorte:show-event-into-in-react-perf-tracks-in-rn
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Summary
This defines the same fiber configuration for RN as used in DOM, so we can expose event timing information in the React scheduler tracks in performance traces.
This was unblocked by #35913 and #35912.
How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
Screenshot 2026-03-03 at 10 10 44
@react-sizebot
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Mar 3, 2026•

edited

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Comparing: aac12ce...c57069b
Critical size changes
Includes critical production bundles, as well as any change greater than 2%:
Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
oss-stable/react-dom/cjs/react-dom.production.js=6.84 kB6.84 kB+0.11%1.88 kB1.88 kB
oss-stable/react-dom/cjs/react-dom-client.production.js=611.79 kB611.79 kB=108.12 kB108.12 kB
oss-experimental/react-dom/cjs/react-dom.production.js=6.84 kB6.84 kB+0.11%1.88 kB1.88 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js=677.72 kB677.72 kB=119.08 kB119.08 kB
facebook-www/ReactDOM-prod.classic.js=697.72 kB697.72 kB=122.59 kB122.59 kB
facebook-www/ReactDOM-prod.modern.js=688.03 kB688.03 kB=120.97 kB120.97 kB
Significant size changes
Includes any change greater than 0.2%:
Expand to show
Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
react-native/implementations/ReactFabric-profiling.js+0.32%463.94 kB465.40 kB+0.41%77.96 kB78.28 kB
react-native/implementations/ReactFabric-profiling.fb.js+0.28%464.90 kB466.22 kB+0.44%78.23 kB78.57 kB

Generated by 🚫 dangerJS against c57069b
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Looks great, please fix the ESLint violation and run yarn prettier-all.
@rubennorte
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merged commit 4cc5b7a
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235 checks passed

github-actionsBot
pushed a commit
that referenced
this pull request
Mar 3, 2026
@rubennorte
Add support for event information in React scheduler tracks in React …
809350a
…Native (#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by #35913 and #35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](4cc5b7a)
@nextjs-botnextjs-bot
mentioned this pull request
Mar 3, 2026
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github-actionsBot
pushed a commit
to code/lib-react
that referenced
this pull request
Mar 7, 2026
@pull
Add support for event information in React scheduler tracks in React …
da8969c
…Native (react#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by react#35913 and react#35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](react@4cc5b7a)
github-actionsBot
pushed a commit
to code/lib-react
that referenced
this pull request
Mar 7, 2026
@pull
Add support for event information in React scheduler tracks in React …
8ede614
…Native (react#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by react#35913 and react#35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](react@4cc5b7a)
@rubennorterubennorte
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Jun 5, 2026
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@javachejavacheAwaiting requested review from javache
@sammy-SCsammy-SCAwaiting requested review from sammy-SC
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Add support for event information in React scheduler tracks in React Native by rubennorte · Pull Request #35947 · react/react · GitHub
Skip to content
Add support for event information in React scheduler tracks in React Native - #35947
Merged
rubennorte merged 1 commit into
react:mainfrom 
rubennorte:show-event-into-in-react-perf-tracks-in-rn
Mar 3, 2026
Merged
Add support for event information in React scheduler tracks in React Native#35947
rubennorte merged 1 commit into
react:mainfrom 
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Summary
This defines the same fiber configuration for RN as used in DOM, so we can expose event timing information in the React scheduler tracks in performance traces.
This was unblocked by #35913 and #35912.
How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
Screenshot 2026-03-03 at 10 10 44
@react-sizebot
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Mar 3, 2026•

edited

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Comparing: aac12ce...c57069b
Critical size changes
Includes critical production bundles, as well as any change greater than 2%:
Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
oss-stable/react-dom/cjs/react-dom.production.js=6.84 kB6.84 kB+0.11%1.88 kB1.88 kB
oss-stable/react-dom/cjs/react-dom-client.production.js=611.79 kB611.79 kB=108.12 kB108.12 kB
oss-experimental/react-dom/cjs/react-dom.production.js=6.84 kB6.84 kB+0.11%1.88 kB1.88 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js=677.72 kB677.72 kB=119.08 kB119.08 kB
facebook-www/ReactDOM-prod.classic.js=697.72 kB697.72 kB=122.59 kB122.59 kB
facebook-www/ReactDOM-prod.modern.js=688.03 kB688.03 kB=120.97 kB120.97 kB
Significant size changes
Includes any change greater than 0.2%:
Expand to show
Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
react-native/implementations/ReactFabric-profiling.js+0.32%463.94 kB465.40 kB+0.41%77.96 kB78.28 kB
react-native/implementations/ReactFabric-profiling.fb.js+0.28%464.90 kB466.22 kB+0.44%78.23 kB78.57 kB

Generated by 🚫 dangerJS against c57069b
@rubennorte
rubennorteforce-pushed
the
show-event-into-in-react-perf-tracks-in-rn
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Looks great, please fix the ESLint violation and run yarn prettier-all.
@rubennorte
rubennorteforce-pushed
the
show-event-into-in-react-perf-tracks-in-rn
branch
from
627fa8f to
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@rubennorte
rubennorte
merged commit 4cc5b7a
into
react:mainMar 3, 2026

235 checks passed

github-actionsBot
pushed a commit
that referenced
this pull request
Mar 3, 2026
@rubennorte
Add support for event information in React scheduler tracks in React …
809350a
…Native (#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by #35913 and #35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](4cc5b7a)
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@pull
Add support for event information in React scheduler tracks in React …
da8969c
…Native (react#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by react#35913 and react#35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](react@4cc5b7a)
github-actionsBot
pushed a commit
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Mar 7, 2026
@pull
Add support for event information in React scheduler tracks in React …
8ede614
…Native (react#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by react#35913 and react#35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](react@4cc5b7a)
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
Add support for event information in React scheduler tracks in React Native by rubennorte · Pull Request #35947 · react/react · GitHub
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Add support for event information in React scheduler tracks in React Native - #35947
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Add support for event information in React scheduler tracks in React Native#35947
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@rubennorterubennorte
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Summary
This defines the same fiber configuration for RN as used in DOM, so we can expose event timing information in the React scheduler tracks in performance traces.
This was unblocked by #35913 and #35912.
How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
Screenshot 2026-03-03 at 10 10 44
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Comparing: aac12ce...c57069b
Critical size changes
Includes critical production bundles, as well as any change greater than 2%:
Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
oss-stable/react-dom/cjs/react-dom.production.js=6.84 kB6.84 kB+0.11%1.88 kB1.88 kB
oss-stable/react-dom/cjs/react-dom-client.production.js=611.79 kB611.79 kB=108.12 kB108.12 kB
oss-experimental/react-dom/cjs/react-dom.production.js=6.84 kB6.84 kB+0.11%1.88 kB1.88 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js=677.72 kB677.72 kB=119.08 kB119.08 kB
facebook-www/ReactDOM-prod.classic.js=697.72 kB697.72 kB=122.59 kB122.59 kB
facebook-www/ReactDOM-prod.modern.js=688.03 kB688.03 kB=120.97 kB120.97 kB
Significant size changes
Includes any change greater than 0.2%:
Expand to show
Name+/-BaseCurrent+/- gzipBase gzipCurrent gzip
react-native/implementations/ReactFabric-profiling.js+0.32%463.94 kB465.40 kB+0.41%77.96 kB78.28 kB
react-native/implementations/ReactFabric-profiling.fb.js+0.28%464.90 kB466.22 kB+0.44%78.23 kB78.57 kB

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Looks great, please fix the ESLint violation and run yarn prettier-all.
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@rubennorte
Add support for event information in React scheduler tracks in React …
809350a
…Native (#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by #35913 and #35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](4cc5b7a)
@nextjs-botnextjs-bot
mentioned this pull request
Mar 3, 2026
 Merged

github-actionsBot
pushed a commit
to code/lib-react
that referenced
this pull request
Mar 7, 2026
@pull
Add support for event information in React scheduler tracks in React …
da8969c
…Native (react#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by react#35913 and react#35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](react@4cc5b7a)
github-actionsBot
pushed a commit
to code/lib-react
that referenced
this pull request
Mar 7, 2026
@pull
Add support for event information in React scheduler tracks in React …
8ede614
…Native (react#35947)
## Summary
This defines the same fiber configuration for RN as used in DOM, so we
can expose event timing information in the React scheduler tracks in
performance traces.
This was unblocked by react#35913 and react#35912.
## How did you test this change?
Manually compiled the renderer and tested e2e in FB infra:
<img width="1217" height="161" alt="Screenshot 2026-03-03 at 10 10 44"
src="https://github.com/user-attachments/assets/6ca1512e-dcaf-49cf-8da9-1c6ae554733a"
/>
DiffTrain build for [4cc5b7a](react@4cc5b7a)
@rubennorterubennorte
mentioned this pull request
Jun 5, 2026
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@hoxyqhoxyqhoxyq approved these changes
@javachejavacheAwaiting requested review from javache
@sammy-SCsammy-SCAwaiting requested review from sammy-SC
@huntiehuntieAwaiting requested review from huntie
@emily8rownemily8rownAwaiting requested review from emily8rown

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