Firebase Auth users is not persisted beyond debug sessions.

[safield]

I am using Firebase auth in a Flutter web app. I am using the latest versions of Flutter and Firebase.

I am debugging on chrome which is launched via the VSCode flutter tools. When I close the debug session, and start a new one, the user is not persisted.

I have created a user on the firebase console. I then run the following minimal example project.

When I first debug the app, it prints "signed out". I then hit the login button and it prints "signed in". I then kill the debug session and then start from scratch...it then prints "signed out" again. The leads me to believe that the user is not being persisted, or somehow the broswer user data directory is cleared or not writable.

 import 'package:flutter/material.dart';
 import 'package:firebase_core/firebase_core.dart';
 import 'package:firebase_auth/firebase_auth.dart';

 void main() {
   runApp(const MyApp());
 }

 class MyApp extends StatelessWidget {
   const MyApp({super.key});

   @override
   Widget build(BuildContext context) {
     return MaterialApp(title: 'Flutter Demo',home: const MyHomePage(),);
   }
 }

 class MyHomePage extends StatefulWidget {
   const MyHomePage({super.key});

   @override
   State<MyHomePage> createState() => _MyHomePageState();
 }

 class _MyHomePageState extends State<MyHomePage> {
   @override
   void initState() {
     super.initState();
     Future.sync(() async {
       await Firebase.initializeApp(
         options: const FirebaseOptions(
           // redacted firebase creds
         ),
       );
       FirebaseAuth.instance.authStateChanges().listen((user) {
         user == null ? print("signed out") : print("signed in");;
       });
     });
   }

   @override
   Widget build(BuildContext context) {
     return Center(
       child: ElevatedButton(
         onPressed: () async {
           FirebaseAuth.instance.signInWithEmailAndPassword(email: "[email protected]", password: "qwer1234");
         },
         child: const Text('Sign In'),
       )
     );
   }
 }