🐛(analytics) filter benign ResizeObserver loop error in Sentry/PostHog

Filter out harmless `ResizeObserver loop limit exceeded` and
`ResizeObserver loop completed with undelivered notifications`
errors via `beforeSend`.

Why this is safe:

* These are W3C spec-mandated browser guards that defer notification
  delivery to the next frame when callbacks alter layout during
  render. They do not cause JS runtime exceptions or break the UX.

Why we actually need to filter them:

* Telemetry platforms like PostHog do not stack/group these well,
  frequently generating distinct error events per browser engine
  and version.
* The unique variants flood reporting dashboards and trigger
  false-positive alerts that clutter real issue triage.

CHANGELOG.md

@@ -12,7 +12,6 @@ and this project adheres to
 
 - 🔥(frontend) drop unused vendored ConnectionObserver
 - 🐛(frontend) vendor formatChatMessageLinks and trim surrounding newlines
-- ✨(summary) add hostname to analytics properties
 
 ### Fixed
 
@@ -22,9 +21,6 @@ and this project adheres to
 - 🐛(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
-- 🐛(frontend) stop reporting screen-share denials as errors
-- 🐛(frontend) generalize screen-share error modal beyond macOS
-- 📈(frontend) stop double-reporting media device failures
 
 ## [1.26.0] - 2026-08-12
 

src/frontend/src/features/analytics/telemetry.ts

@@ -23,7 +23,6 @@ export type LogCode =
   | 'livekit_room_error'
   | 'device_switch_failure'
   | 'permission_poll_failure'
-  | 'media_devices_error_event'
   // non-media families
   | 'participant_mute_api_failure'
   | 'permissions_api_failure'
@@ -138,7 +137,6 @@ export const captureMediaEvent = async (
     | 'media-device-success'
     | 'device-not-found'
     | 'permissions-denied'
-    | 'screen-share-permission-denied'
     | 'silent-mic-detected'
     | 'silent-mic-analyser-unavailable'
     | 'silent-mic-recovered'

src/frontend/src/features/rooms/components/Conference.tsx

@@ -225,10 +225,9 @@ export const Conference = ({
             backgroundColor: 'primaryDark.50 !important',
           })}
           onError={(e) => {
-            const failure = MediaDeviceFailure.getFailure(e)
-            if (failure && failure !== MediaDeviceFailure.Other) return
             reportError('livekit_room_error', e, {
               path: 'connect_publish',
+              failure: MediaDeviceFailure.getFailure(e) ?? 'not-a-device-error',
             })
           }}
           onConnected={async () => {

src/frontend/src/features/rooms/livekit/components/ScreenShareErrorModal.tsx

@@ -1,13 +1,6 @@
 import { A, Button, Dialog, P } from '@/primitives'
 import { useTranslation } from 'react-i18next'
 import { css } from '@/styled-system/css'
-import { getOS, type OS } from '@/utils/os'
-
-const SCREEN_CAPTURE_SETTINGS_LINKS: Partial<Record<OS, string>> = {
-  macos:
-    'x-apple.systempreferences:com.apple.preference.security?Privacy_ScreenCapture',
-  windows: 'ms-settings:privacy-graphicscaptureprogrammatic',
-}
 
 // todo - refactor it into a generic system
 export const ScreenShareErrorModal = ({
@@ -18,8 +11,7 @@ export const ScreenShareErrorModal = ({
   onClose: () => void
 }) => {
   const { t } = useTranslation('rooms', { keyPrefix: 'error.screenShare' })
-  const os = getOS()
-  const settingsHref = SCREEN_CAPTURE_SETTINGS_LINKS[os]
+  const isMac = navigator.userAgent.toLowerCase().indexOf('mac') !== -1
 
   return (
     <Dialog
@@ -34,16 +26,15 @@ export const ScreenShareErrorModal = ({
           <>
             <P>
               {t('message')}{' '}
-              {settingsHref && (
+              {isMac && (
                 <>
-                  {t('settingsInstructions')}{' '}
+                  {t('macInstructions')}{' '}
                   <A
-                    href={settingsHref}
-                    target="_blank"
+                    href="x-apple.systempreferences:com.apple.preference.security?Privacy_ScreenCapture"
                     color="primary"
-                    aria-label={t(`settingsLabel.${os}`) + '-' + t('newTab')}
+                    aria-label={t('macSystemPreferences') + '-' + t('newTab')}
                   >
-                    {t(`settingsLabel.${os}`)}
+                    {t('macSystemPreferences')}
                   </A>
                   .{' '}
                 </>

src/frontend/src/features/rooms/livekit/hooks/useWatchMediaDeviceErrors.ts

@@ -50,16 +50,15 @@ export const useWatchMediaDeviceErrors = (): MediaDeviceAlert & {
   useEffect(() => {
     const onDeviceError = (error: Error, kind?: MediaDeviceKind) => {
       const failure = MediaDeviceFailure.getFailure(error)
-      if (!failure) return
-      if (failure != MediaDeviceFailure.Other) {
-        void captureMediaEvent('media-device-error', {
-          log_code: 'media_devices_error_event',
-          path: 'connect_publish',
-          failure,
-          kind: kind ?? 'unknown',
-        })
-      }
-      if (!kind) return
+      if (!failure || !kind) return
+
+      void captureMediaEvent('media-device-error', {
+        log_code: 'media_devices_error_event',
+        path: 'connect_publish',
+        failure,
+        kind,
+      })
+
       const permissionKind = PERMISSION_BY_DEVICE_KIND[kind]
       switch (failure) {
         case MediaDeviceFailure.DeviceInUse:

src/frontend/src/features/rooms/livekit/prefabs/VideoConference.tsx

@@ -11,9 +11,7 @@ import { SidePanel } from '../components/SidePanel'
 import { RecordingProvider } from '@/features/recording'
 import { ScreenShareErrorModal } from '../components/ScreenShareErrorModal'
 import { ConnectionObserver } from '../components/ConnectionObserver'
-import { captureMediaEvent, reportError } from '@/features/analytics/telemetry'
-import { getOS } from '@/utils/os'
-import { isFireFox } from '@/utils/livekit'
+import { reportError } from '@/features/analytics/telemetry'
 import { MediaStateObserver } from '../components/MediaStateObserver'
 import { RoomMetadataSynchronizer } from '../components/RoomMetadataSynchronizer'
 import { useNoiseReduction } from '../hooks/useNoiseReduction'
@@ -38,20 +36,6 @@ export interface VideoConferenceProps extends React.HTMLAttributes<HTMLDivElemen
   SettingsComponent?: React.ComponentType
 }
 
-const getScreenSharePermissionDeniedScope = (
-  error: Error
-): 'system' | 'user' | 'browser' | null => {
-  if (error.name === 'NotAllowedError') {
-    if (/by system/i.test(error.message)) return 'system'
-    if (/by user/i.test(error.message)) return 'user'
-    return 'browser'
-  }
-  if (error.name === 'NotFoundError' && isFireFox() && getOS() === 'macos') {
-    return 'system'
-  }
-  return null
-}
-
 /**
  * The `VideoConference` ready-made component is your drop-in solution for a classic video conferencing application.
  * It provides functionality such as focusing on one participant, grid view with pagination to handle large numbers
@@ -77,34 +61,6 @@ export function VideoConference({ ...props }: VideoConferenceProps) {
 
   const [isShareErrorVisible, setIsShareErrorVisible] = useState(false)
 
-  const handleDeviceError = ({
-    source,
-    error,
-  }: {
-    source: Track.Source
-    error: Error
-  }) => {
-    if (source === Track.Source.ScreenShare) {
-      const scope = getScreenSharePermissionDeniedScope(error)
-      if (scope) {
-        if (scope === 'system') setIsShareErrorVisible(true)
-        void captureMediaEvent('screen-share-permission-denied', {
-          at: 'ControlBar.onDeviceError',
-          source,
-          error_name: error.name,
-          error_message: error.message,
-          denied_scope: scope,
-          os: getOS(),
-        })
-        return
-      }
-    }
-    reportError('device_switch_failure', error, {
-      at: 'ControlBar.onDeviceError',
-      source,
-    })
-  }
-
   return (
     <>
       <RoomMetadataSynchronizer />
@@ -136,7 +92,21 @@ export function VideoConference({ ...props }: VideoConferenceProps) {
                 <StageLayout />
               )}
             </RoomContentArea>
-            <ControlBar onDeviceError={handleDeviceError} />
+            <ControlBar
+              onDeviceError={(e) => {
+                reportError('device_switch_failure', e.error, {
+                  at: 'ControlBar.onDeviceError',
+                  source: e.source,
+                })
+                if (
+                  e.source == Track.Source.ScreenShare &&
+                  e.error.toString() ==
+                    'NotAllowedError: Permission denied by system'
+                ) {
+                  setIsShareErrorVisible(true)
+                }
+              }}
+            />
             <SidePanel />
           </>
         )}

src/frontend/src/locales/de/rooms.json

@@ -214,11 +214,8 @@
       "title": "Bildschirmfreigabe nicht möglich",
       "ariaLabel": "Bildschirmfreigabe nicht möglich",
       "message": "Deinem Browser fehlt möglicherweise die Berechtigung, den Bildschirm deines Geräts abzugreifen.",
-      "settingsInstructions": "Gehe zu den",
-      "settingsLabel": {
-        "macos": "Systemeinstellungen",
-        "windows": "Windows-Datenschutzeinstellungen"
-      },
+      "macInstructions": "Gehe zu den",
+      "macSystemPreferences": "Systemeinstellungen",
       "helpLinkText": "Weitere Informationen findest du unter",
       "helpLinkLabel": "Bildschirmfreigabeproblem",
       "closeButton": "Schließen",

src/frontend/src/locales/en/rooms.json

@@ -214,11 +214,8 @@
       "title": "Unable to share your screen",
       "ariaLabel": "Unable to share your screen",
       "message": "Your browser may not be allowed to record the screen on your computer.",
-      "settingsInstructions": "Go to your",
-      "settingsLabel": {
-        "macos": "System Preferences",
-        "windows": "Windows privacy settings"
-      },
+      "macInstructions": "Go to your",
+      "macSystemPreferences": "System Preferences",
       "helpLinkText": "To learn more, see",
       "helpLinkLabel": "Presentation issue",
       "closeButton": "Dismiss",

src/frontend/src/locales/fr/rooms.json

@@ -214,11 +214,8 @@
       "title": "Impossible de partager votre écran",
       "ariaLabel": "Impossible de partager votre écran",
       "message": "Il se peut que votre navigateur ne soit pas autorisé à enregistrer l'écran sur votre ordinateur.",
-      "settingsInstructions": "Accédez à vos",
-      "settingsLabel": {
-        "macos": "Préférences système",
-        "windows": "paramètres de confidentialité Windows"
-      },
+      "macInstructions": "Accèdez à vos",
+      "macSystemPreferences": "Préférences système",
       "helpLinkText": "Pour en savoir plus, consulter",
       "helpLinkLabel": "Problème de présentation",
       "closeButton": "Ignorer",

src/frontend/src/locales/nl/rooms.json

@@ -214,11 +214,8 @@
       "title": "Kan uw scherm niet delen",
       "ariaLabel": "Kan uw scherm niet delen",
       "message": "Het is mogelijk dat uw browser geen toestemming heeft om het scherm op uw computer op te nemen.",
-      "settingsInstructions": "Ga naar uw",
-      "settingsLabel": {
-        "macos": "Systeemvoorkeuren",
-        "windows": "Windows-privacyinstellingen"
-      },
+      "macInstructions": "Ga naar uw",
+      "macSystemPreferences": "Systeemvoorkeuren",
       "helpLinkText": "Meer informatie, zie",
       "helpLinkLabel": "Presentatieprobleem",
       "closeButton": "Negeren",

src/summary/summary/core/analytics.py

@@ -1,7 +1,6 @@
 """Analytics classes."""
 
 import json
-import socket
 import time
 from collections import Counter
 from functools import lru_cache
@@ -44,11 +43,6 @@ class Analytics:
         if self.is_disabled:
             return
 
-        # We add hostname to help track down the source of events
-        properties = properties or {}
-        if not properties.get("hostname"):
-            properties["hostname"] = socket.gethostname()
-
         try:
             self._client.capture(
                 event_name, distinct_id=distinct_id, properties=properties