🔥(frontend) drop unused vendored ConnectionObserver

The vendored ConnectionObserver collected connection data that never
turned out to be useful for debugging.

Remove it to reduce dead code, and re-add a targeted observer later
if a concrete debugging need shows up.

CHANGELOG.md

@@ -11,16 +11,12 @@ and this project adheres to
 ### Changed
 
 - 🔥(frontend) drop unused vendored ConnectionObserver
-- 🐛(frontend) vendor formatChatMessageLinks and trim surrounding newlines
 
 ### Fixed
 
 - 📈(frontend) downgrade unreachable external home URL from error to event
 - 🐛(frontend) handle 401 responses when syncing user preferences
 - 🐛(frontend) harden speaker test against missing sinks and play errors
-- 🐛(frontend) implement hysteresis band for the control bar layout
-- 🐛(frontend) fix toolbar ResizeObserver loop and alignment drift
-- 🐛(analytics) filter benign ResizeObserver loop error in Sentry/PostHog
 
 ## [1.26.0] - 2026-08-12
 

src/frontend/src/features/analytics/exceptionFilters.ts

@@ -1,24 +0,0 @@
-import type { CaptureResult } from 'posthog-js'
-
-const IGNORED_EXCEPTION_PATTERNS = [
-  /ResizeObserver loop (completed with undelivered notifications|limit exceeded)/,
-]
-
-const shouldIgnoreException = (value: unknown): boolean =>
-  typeof value === 'string' &&
-  IGNORED_EXCEPTION_PATTERNS.some((pattern) => pattern.test(value))
-
-export const filterExceptions = (
-  event: CaptureResult | null
-): CaptureResult | null => {
-  if (event?.event !== '$exception') return event
-
-  const exceptionList = event.properties?.['$exception_list']
-  const values: unknown[] = Array.isArray(exceptionList)
-    ? exceptionList.map((exception) => exception?.value)
-    : []
-
-  values.push(event.properties?.['$exception_message'])
-
-  return values.some(shouldIgnoreException) ? null : event
-}

src/frontend/src/features/analytics/hooks/useAnalytics.ts

@@ -2,7 +2,6 @@ import { useEffect } from 'react'
 import { type ApiUser } from '@/features/auth/api/ApiUser'
 import { useUser } from '@/features/auth/api/useUser'
 import { getPosthog } from '../utils'
-import { filterExceptions } from '../exceptionFilters'
 
 export const startAnalyticsSession = (data: ApiUser) => {
   getPosthog().then((ph) => {
@@ -48,7 +47,6 @@ export const useAnalytics = ({
           capture_unhandled_rejections: true,
           capture_console_errors: true,
         },
-        before_send: filterExceptions,
       })
     })
   }, [id, host, flags_api_host, isDisabled])

src/frontend/src/features/chat/components/ChatMessageBody.tsx

@@ -1,6 +1,6 @@
 import { ChatRow } from '@/stores/chat'
 import React, { useMemo } from 'react'
-import { formatChatMessageLinks } from '../utils'
+import { formatChatMessageLinks } from '@livekit/components-react'
 import { css } from '@/styled-system/css'
 import { Text } from '@/primitives'
 

src/frontend/src/features/chat/utils.tsx

@@ -1,32 +0,0 @@
-import { tokenize, createDefaultGrammar } from '@livekit/components-core'
-import { ReactNode } from 'react'
-
-const defaultGrammar = Object.freeze(createDefaultGrammar())
-
-export function formatChatMessageLinks(message: string): ReactNode {
-  const trimmedMessage = message.replace(/^[\r\n]+|[\r\n]+$/g, '')
-  return tokenize(trimmedMessage, defaultGrammar).map((tok, i) => {
-    if (typeof tok === `string`) {
-      return tok
-    } else {
-      const content = tok.content.toString()
-      const href =
-        tok.type === `url`
-          ? /^http(s?):\/\//.test(content)
-            ? content
-            : `https://${content}`
-          : `mailto:${content}`
-      return (
-        <a
-          className="lk-chat-link"
-          key={i}
-          href={href}
-          target="_blank"
-          rel="noreferrer"
-        >
-          {content}
-        </a>
-      )
-    }
-  })
-}

src/frontend/src/features/reactions/components/toolbar/ReactionButtonsContainer.tsx

@@ -26,8 +26,8 @@ const StyledContainer = styled('div', {
     backgroundColor: 'primaryDark.100',
     maxWidth: '100%',
     opacity: 0,
-    translate: '0 3.25rem',
-    transition: 'opacity, translate',
+    transform: 'translateY(3.25rem)',
+    transition: 'opacity, transform',
     transitionDuration: '0.5s',
     transitionTimingFunction: 'cubic-bezier(0.4, 0, 0.2, 1)',
     pointerEvents: 'none',
@@ -36,7 +36,7 @@ const StyledContainer = styled('div', {
     isVisible: {
       true: {
         opacity: 1,
-        translate: '0 0',
+        transform: 'translateY(0)',
         pointerEvents: 'auto',
       },
     },
@@ -84,7 +84,7 @@ export const ReactionButtonsContainer = ({
     shouldBeCenteredWithToggleButton,
     setShouldBeCenteredWithToggleButton,
   ] = useState(false)
-  const [offsetX, setOffsetX] = useState(0)
+  const [rightOffset, setRightOffset] = useState(0)
 
   const updateArrows = useCallback(() => {
     const el = scrollRef.current
@@ -115,7 +115,7 @@ export const ReactionButtonsContainer = ({
 
   useLayoutEffect(() => {
     if (!shouldBeCenteredWithToggleButton || isMobile) {
-      setOffsetX(0)
+      setRightOffset(0)
       return
     }
 
@@ -133,7 +133,7 @@ export const ReactionButtonsContainer = ({
       const containerCenterX = containerRect.left + containerRect.width / 2
       const shift = toggleCenterX - containerCenterX
       if (Math.abs(shift) < 0.5) return
-      setOffsetX((prev) => prev + shift)
+      setRightOffset((prev) => prev - shift * 2)
     }
 
     const schedule = () => {
@@ -182,7 +182,7 @@ export const ReactionButtonsContainer = ({
       isVisible={isVisible}
       style={
         shouldBeCenteredWithToggleButton && !isMobile && adjustedCentering
-          ? { transform: `translateX(${offsetX}px)` }
+          ? { marginRight: `${rightOffset}px` }
           : { margin: '0 15px' }
       }
     >

src/frontend/src/features/rooms/livekit/prefabs/ControlBar/MoreOptions.tsx

@@ -12,8 +12,7 @@ import type { ToggleButtonProps } from '@/primitives/ToggleButton'
 import { RiArrowDownSLine, RiArrowUpSLine } from '@remixicon/react'
 import { useTranslation } from 'react-i18next'
 
-const CONTROL_BAR_BREAKPOINT_WIDE = 1100
-const CONTROL_BAR_BREAKPOINT_NARROW = 1050
+const CONTROL_BAR_BREAKPOINT = 1100
 
 const NavigationControls = ({
   onPress,
@@ -66,9 +65,10 @@ export const LateralMenu = () => {
     </DialogTrigger>
   )
 }
+
 interface BreakpointObserverProps {
   containerRef: RefObject<HTMLDivElement>
-  onWideChange: (isWide: boolean | null) => void
+  onWideChange: (isWide: boolean) => void
 }
 
 const BreakpointObserver = ({
@@ -76,20 +76,7 @@ const BreakpointObserver = ({
   onWideChange,
 }: BreakpointObserverProps) => {
   const { width } = useSize(containerRef)
-  const [isWide, setIsWide] = useState<boolean | null>(null)
-
-  useEffect(() => {
-    if (!width) {
-      return
-    }
-    if (width > CONTROL_BAR_BREAKPOINT_WIDE) {
-      setIsWide(true)
-    } else if (width <= CONTROL_BAR_BREAKPOINT_NARROW) {
-      setIsWide(false)
-    } else {
-      setIsWide((prev) => (prev === null ? false : prev))
-    }
-  }, [width])
+  const isWide = width > CONTROL_BAR_BREAKPOINT
 
   useEffect(() => {
     onWideChange(isWide)
@@ -103,7 +90,7 @@ export const MoreOptions = ({
 }: {
   parentElement: RefObject<HTMLDivElement>
 }) => {
-  const [isWide, setIsWide] = useState<boolean | null>(null)
+  const [isWide, setIsWide] = useState(false)
 
   return (
     <nav
@@ -120,7 +107,7 @@ export const MoreOptions = ({
         containerRef={parentElement}
         onWideChange={setIsWide}
       />
-      {isWide !== null && (isWide ? <NavigationControls /> : <LateralMenu />)}
+      {isWide ? <NavigationControls /> : <LateralMenu />}
     </nav>
   )
 }