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Preserve FCM token after service worker reset (version tap) #187

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Merged
ProLoser merged 3 commits into from
Mar 21, 2026
Merged

Preserve FCM token after service worker reset (version tap) #187

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bb42ded
Initial plan
Copilot Mar 20, 2026
39611a2
Preserve notification token after version reset (service worker refresh)
Copilot Mar 20, 2026
561d67a
Guard against falsy token before snapshot.child() call
Copilot Mar 21, 2026
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3 changes: 2 additions & 1 deletion src/Dialogues/Friends.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -105,7 +105,8 @@ export default function Friends({ user, load, reset, friend }: FriendsProps) {
tokensRef.on('value', tokensSubscriber);

// TODO: Disable? After 3 failed attempts, permission = 'blocked'
if (window.Notification?.permission === 'default')
// Also re-save on 'granted' in case the service worker was refreshed (e.g. version reset)
if (token && window.Notification?.permission !== 'denied')
tokensRef.once('value', snapshot => snapshot.child(token).exists() || saveFcmToken())
Comment on lines +108 to 110
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Copilot AI Mar 21, 2026

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getFcmToken() can resolve with a falsy token (e.g. null) when Messaging can't provide one yet. In that case snapshot.child(token) will throw and break this effect. Guard against a missing token before calling .child(...) (and decide whether you want to call saveFcmToken() when token is missing).

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})
.catch(error => {
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