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Update browser support docs for INP and LCP #647

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Merged
merged 5 commits into from
Nov 20, 2025
Merged

Update browser support docs for INP and LCP #647

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3fb9d98
Update INP browser support docs to include Firefox 144+
Mimori256 Nov 9, 2025
c99bcdd
Updated outdated comment in `browserSUpportsEntry.js`
Mimori256 Nov 9, 2025
966c3fe
Add Safari Tech Preview support for INP and LCP
Mimori256 Nov 10, 2025
52de004
Clarify browser support description in README
Mimori256 Nov 10, 2025
4ceb8f4
Merge branch 'main' into main
tunetheweb Nov 20, 2025
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2 changes: 1 addition & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -1135,7 +1135,7 @@ Browser support for each function is as follows:

- `onCLS()`: Chromium
- `onFCP()`: Chromium, Firefox, Safari
- `onINP()`: Chromium
- `onINP()`: Chromium, Firefox
- `onLCP()`: Chromium, Firefox
- `onTTFB()`: Chromium, Firefox, Safari

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1 change: 0 additions & 1 deletion test/utils/browserSupportsEntry.js
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Expand Up @@ -28,7 +28,6 @@ export function browserSupportsEntry(type) {
return false;
}

// Firefox supports the event timing API but not `interactionId`.
if (
type === 'event' &&
self.PerformanceEventTiming &&
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