Hi all looking for guidance on an intermittent Firebase Auth issue.

What’s happening

• Some users open the app and remain stuck on the loading screen.
•onIdTokenChanged andonAuthStateChanged never fire (no logs).
• We wrappedsetPersistence(Auth.Persistence.LOCAL) with.then/.catch logs—neither handler ever runs, indicating the Promise stays “pending”.
•firebase.auth().currentUseris logged right before the listener is attached, so the code path is reached.

this.firebaseAuth.setPersistence(Auth.Persistence.LOCAL).then(()=>console.log('[Auth] persistence set'))// never prints.catch(err=>console.error('[Auth] persistence error',err));// never prints

Why we suspect IndexedDB

setPersistence(LOCAL) relies on IndexedDB. If the database open hangs, the Promise never settles and no auth events fire.

Environment

Questions

1. Is a never-resolvingsetPersistence() Promise a known issue?
2. Recommended ways to detect or recover from this state?
3. Would upgrading to Firebase v9+ likely help?

Any insights or similar experiences would be greatly appreciated. Thank you!