Session management with service workers & firebase.auth.Auth.Persistence.SESSION

[maucaro]

I've gotten session management with service workers to work as per Session management with service workers and this snippet. I've also gotten Session persistence working. What I haven't been able to do is get both working at the same time. If I turn on session persistence (firebase.auth.Auth.Persistence.SESSION) with the FirebaseUI (web), bearer tokens are no longer passed. POC code is here