chore(platform): modern browser targets + websocket upgrade - #8541
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tim2000s wants to merge 15 commits into
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chore(platform): modern browser targets + websocket upgrade#8541tim2000s wants to merge 15 commits into
tim2000s wants to merge 15 commits into
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Master update
Update master
Update of NS
Update to 13.0.0
LAtest PR
UPdate to latest
Update local copy
Update to NS15
- Replace the legacy .browserslistrc (iOS 9 era) with a package.json browserslist targeting evergreen browsers (Chrome/Edge >= 80, Firefox >= 78, Safari/iOS >= 13.x), so Babel can emit ES2020 instead of ES5. NOTE: this drops support for very old browsers/devices -- a deliberate maintainer decision. - socket.io clients negotiate ['polling','websocket'] (polling first, then upgrade) instead of polling-only, while still falling back to polling behind proxies that block websockets. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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chore(platform): modern browser targets + websocket upgrade
Two infrastructure changes, deliberately isolated from the feature work for separate review/discussion. Part of a UI-modernization series.
1. Browser targets → ES2020
Replaces the iOS-9-era
.browserslistrcwith apackage.jsonbrowserslisttargeting evergreen browsers (Chrome/Edge ≥ 80, Firefox ≥ 78, Safari/iOS ≥ 13.x), letting Babel emit ES2020 instead of ES5 (smaller, faster bundle).2. WebSocket upgrade
socket.io clients now negotiate
['polling', 'websocket'](polling first, then upgrade) instead of polling-only.Polling-only was an intentional choice (#7793) — almost certainly to avoid websocket breakage behind some Azure/Heroku/nginx reverse proxies. This re-enables the websocket upgrade while keeping polling as the first transport and fallback. Please confirm this won't regress your hosted/proxy setups — if it's risky, I'm happy to drop this half of the PR.
Testing
Production bundle builds with the new targets;
npx browserslistresolves the intended minimums.🤖 Generated with Claude Code