I have added google sign in in my flutter web project, it’s success to do login when i first run the code. But after do refresh, or hot restart, the currentUser data will be null.

loginWithGoogle(context) async {
    try {
      if (kIsWeb) {
        googleSignIn = GoogleSignIn(
            clientId:
                'client-id.apps.googleusercontent.com');

        GoogleSignInAccount? googleSignInAccount = kIsWeb
            ? await (googleSignIn.signInSilently())
            : await (googleSignIn.signIn());

        if (kIsWeb && googleSignInAccount == null) {
          googleSignInAccount = await (googleSignIn.signIn());
        }
        googleSignIn.onCurrentUserChanged
            .listen((GoogleSignInAccount? account) {
          // save login info
        });
        bool isSigned = await googleSignIn.isSignedIn();
        if (isSigned) {
          // save login info when user has logged in
          final User? currentUser = auth.currentUser;
          print(currentUser?.email);
        }
      } else {
        // handle login for android device
    } catch (e) {
      Get.snackbar('Firebase error', e.toString());
    }
  }```

It's function is used for web and android device, in android is can run smoothly, but when i run in the chrome-web it's success to get user when i first running the code, but after do hot refresh, it cant get the user data. 

When calling `isSignedIn()` it return true value, but when call the `currentUser?.email` it return null


can somebody tell me where need to fix?