[firebase_auth_web]: Google Sign In Fails on Web

[LoadJulz]

Is there an existing issue for this?

• [X] I have searched the existing issues.

Which plugins are affected?

Auth

Which platforms are affected?

Web

Description

After issues with the new google sign in I now want to use signInWithPopup from FirebaseAuth. As stated with in the docu this seems pretty straight forward.

My prev code looked like this:

@override
  Future<Either<String, auth.User>> signInWithGoogle() async {
    try {
      final GoogleSignInAccount? googleUser = await GoogleSignIn().signIn();

      final GoogleSignInAuthentication? googleAuth =
          await googleUser?.authentication;

      final credential = GoogleAuthProvider.credential(
        accessToken: googleAuth?.accessToken,
        idToken: googleAuth?.idToken,
      );

      final result =
          await FirebaseAuth.instance.signInWithCredential(credential);

      final newUser = result.user;

      if (newUser == null) {
        throw Error();
      } else {
        return right(newUser);
      }
    } catch (e) {
      print("Error");
      print(e);
      return left(WebserviceErrorHandler.handleError(e));
    }
  }

And now I have the replaced it with the following, because the old one failed with the new versions:

@override
  Future<Either<String, auth.User>> signInWithGoogle() async {
    try {
      GoogleAuthProvider googleProvider = GoogleAuthProvider();

      googleProvider.addScope('email');
      googleProvider.addScope('profile');

      final result =
          await FirebaseAuth.instance.signInWithPopup(googleProvider);

      final newUser = result.user;

      if (newUser == null) {
        throw Error();
      } else {
        return right(newUser);
      }
    } catch (e) {
      print("Error");
      print(e);
      return left(WebserviceErrorHandler.handleError(e));
    }
  }

But now I am getting the error: The popup has been closed by the user before finalizing the operation. Is there any workaround to do so?

Reproducing the issue

1. Trigger the signInWithPopup
2. Login with a google account
3. See the error in the browser console

Firebase Core version

3.4.0

Flutter Version

3.24.0

Relevant Log Output

[firebase_auth/popup-closed-by-user] The popup has been closed by the user before finalizing the operation.

Flutter dependencies

Dart SDK 3.5.0 Flutter SDK 3.24.0 applearning 1.0.0+1

dependencies:

• adapty_flutter 2.6.0 [flutter meta]
• appcheck 1.5.2 [flutter]
• appsflyer_sdk 6.14.3 [flutter]
• audioplayers 6.1.0 [audioplayers_android audioplayers_darwin audioplayers_linux audioplayers_platform_interface audioplayers_web audioplayers_windows file flutter http meta path_provider synchronized uuid]
• auto_route 8.3.0 [flutter path web collection meta]
• azlistview 2.0.0 [flutter scrollable_positioned_list]
• cached_network_image 3.4.0 [cached_network_image_platform_interface cached_network_image_web flutter flutter_cache_manager octo_image]
• confetti 0.7.0 [flutter vector_math]
• countup 0.1.4 [flutter]
• crypto 3.0.5 [typed_data]
• dartz 0.10.1
• decimal 2.3.3 [rational]
• device_info_plus 10.1.2 [device_info_plus_platform_interface ffi file flutter flutter_web_plugins meta web win32 win32_registry]
• extended_image 8.2.1 [extended_image_library flutter meta]
• firebase_analytics 11.3.0 [firebase_analytics_platform_interface firebase_analytics_web firebase_core firebase_core_platform_interface flutter]
• firebase_auth 5.2.0 [firebase_auth_platform_interface firebase_auth_web firebase_core firebase_core_platform_interface flutter meta]
• firebase_auth_web 5.12.6 [firebase_auth_platform_interface firebase_core firebase_core_web flutter flutter_web_plugins http_parser meta web]
• firebase_core 3.4.0 [firebase_core_platform_interface firebase_core_web flutter meta]
• firebase_crashlytics 4.1.0 [firebase_core firebase_core_platform_interface firebase_crashlytics_platform_interface flutter stack_trace]
• firebase_dynamic_links 6.0.5 [firebase_core firebase_core_platform_interface firebase_dynamic_links_platform_interface flutter meta plugin_platform_interface]
• firebase_messaging 15.1.0 [firebase_core firebase_core_platform_interface firebase_messaging_platform_interface firebase_messaging_web flutter meta]
• firebase_remote_config 5.1.0 [firebase_core firebase_core_platform_interface firebase_remote_config_platform_interface firebase_remote_config_web flutter]
• fl_chart 0.68.0 [equatable flutter]
• flutter 0.0.0 [characters collection material_color_utilities meta vector_math sky_engine]
• flutter_bloc 7.3.3 [flutter bloc provider]
• flutter_cache_manager 3.4.1 [clock collection file flutter http path path_provider rxdart sqflite uuid]
• flutter_fgbg 0.2.2 [flutter]
• flutter_fortune_wheel 1.3.1 [flutter flutter_hooks quiver]
• flutter_html 3.0.0-alpha.5 [html csslib collection numerus flutter]
• flutter_jailbreak_detection 1.10.0 [flutter]
• flutter_local_notifications 17.2.2 [clock flutter flutter_local_notifications_linux flutter_local_notifications_platform_interface timezone]
• flutter_localizations 0.0.0 [flutter intl characters clock collection material_color_utilities meta path vector_math]
• flutter_svg 2.0.10+1 [flutter http vector_graphics vector_graphics_codec vector_graphics_compiler]
• flutter_web_browser 0.17.1 [flutter]
• freezed_annotation 2.4.4 [collection json_annotation meta]
• get_it 7.7.0 [async collection meta]
• google_mobile_ads 5.1.0 [meta flutter webview_flutter_android webview_flutter_wkwebview webview_flutter]
• google_sign_in 6.2.1 [flutter google_sign_in_android google_sign_in_ios google_sign_in_platform_interface google_sign_in_web]
• group_button 5.3.4 [flutter]
• home_widget 0.2.1 [flutter]
• http 1.2.2 [async http_parser meta web]
• image_cropper 7.1.0 [flutter image_cropper_platform_interface image_cropper_for_web]
• image_picker 1.1.2 [flutter image_picker_android image_picker_for_web image_picker_ios image_picker_linux image_picker_macos image_picker_platform_interface image_picker_windows]
• image_picker_for_web 3.0.5 [flutter flutter_web_plugins image_picker_platform_interface mime web]
• in_app_review 2.0.9 [flutter in_app_review_platform_interface]
• infinite_scroll_pagination 4.0.0 [flutter flutter_staggered_grid_view sliver_tools]
• injectable 2.4.4 [get_it meta]
• install_referrer 1.2.1 [flutter]
• intl 0.19.0 [clock meta path]
• jovial_svg 1.1.17 [xml collection args vector_math jovial_misc http meta flutter]
• json_annotation 4.9.0 [meta]
• lottie 2.7.0 [archive flutter path vector_math]
• package_info_plus 8.0.2 [ffi flutter flutter_web_plugins http meta path package_info_plus_platform_interface web win32 clock]
• path_provider 2.1.4 [flutter path_provider_android path_provider_foundation path_provider_linux path_provider_platform_interface path_provider_windows]
• pdfx 2.6.0 [flutter flutter_web_plugins plugin_platform_interface device_info_plus uuid meta extension synchronized universal_platform photo_view vector_math web]
• permission_handler 11.3.1 [flutter meta permission_handler_android permission_handler_apple permission_handler_html permission_handler_windows permission_handler_platform_interface]
• qr_flutter 4.1.0 [flutter qr]
• rxdart 0.27.7
• share_plus 9.0.0 [cross_file meta mime flutter flutter_web_plugins share_plus_platform_interface file url_launcher_web url_launcher_windows url_launcher_linux url_launcher_platform_interface ffi web win32]
• shared_preferences 2.3.2 [flutter shared_preferences_android shared_preferences_foundation shared_preferences_linux shared_preferences_platform_interface shared_preferences_web shared_preferences_windows]
• sign_in_with_apple 6.1.2 [flutter meta sign_in_with_apple_platform_interface sign_in_with_apple_web]
• tap_debouncer 2.2.0 [flutter]
• universal_html 2.2.4 [async csslib charcode collection html meta source_span typed_data universal_io]
• universal_io 2.2.2 [collection meta typed_data]
• url_launcher 6.3.0 [flutter url_launcher_android url_launcher_ios url_launcher_linux url_launcher_macos url_launcher_platform_interface url_launcher_web url_launcher_windows]
• url_strategy 0.2.0 [flutter_web_plugins]
• uuid 4.4.2 [crypto sprintf meta fixnum]
• video_player 2.9.1 [flutter html video_player_android video_player_avfoundation video_player_platform_interface video_player_web]
• visibility_detector 0.3.3 [flutter]
• workmanager 0.5.2 [flutter]
• youtube_player_flutter 8.1.2 [flutter flutter_inappwebview]
• youtube_player_iframe 5.1.3 [flutter meta webview_flutter webview_flutter_android webview_flutter_wkwebview url_launcher youtube_player_iframe_web]

dev dependencies:

• analyzer 6.4.1 [_fe_analyzer_shared collection convert crypto glob meta package_config path pub_semver source_span watcher yaml]
• auto_route_generator 8.1.0 [build source_gen analyzer path build_runner code_builder dart_style xml args glob package_config auto_route]
• build_runner 2.4.12 [analyzer args async build build_config build_daemon build_resolvers build_runner_core code_builder collection crypto dart_style frontend_server_client glob graphs http_multi_server io js logging meta mime package_config path pool pub_semver pubspec_parse shelf shelf_web_socket stack_trace stream_transform timing watcher web_socket_channel yaml]
• dependency_validator 3.2.3 [args build_config checked_yaml glob io json_annotation logging package_config path pub_semver pubspec_parse yaml]
• firebase_app_check 0.3.0+5 [firebase_app_check_platform_interface firebase_app_check_web firebase_core firebase_core_platform_interface flutter]
• flutter_launcher_icons 0.11.0 [args checked_yaml cli_util image json_annotation path yaml]
• flutter_lints 1.0.4 [lints]
• flutter_test 0.0.0 [flutter test_api matcher path fake_async clock stack_trace vector_math leak_tracker_flutter_testing async boolean_selector characters collection leak_tracker leak_tracker_testing material_color_utilities meta source_span stream_channel string_scanner term_glyph vm_service]
• flutter_web_optimizer 1.4.2 [path args html crypto package_config standard_message_codec]
• freezed 2.5.2 [analyzer build build_config collection meta source_gen freezed_annotation json_annotation]
• injectable_generator 2.6.2 [build source_gen path glob analyzer code_builder dart_style injectable collection recase meta]
• json_serializable 6.8.0 [analyzer async build build_config collection json_annotation meta path pub_semver pubspec_parse source_gen source_helper]

dependency overrides:

• flutter_layout_grid 2.0.4 [flutter collection meta quiver]
• intl 0.19.0 [clock meta path]
• permission_handler_html 0.1.2 [flutter flutter_web_plugins permission_handler_platform_interface web]

transitive dependencies:

• _fe_analyzer_shared 67.0.0 [meta]
• _flutterfire_internals 1.3.41 [collection firebase_core firebase_core_platform_interface flutter meta]
• archive 3.6.1 [crypto path]
• args 2.5.0
• async 2.11.0 [collection meta]
• audioplayers_android 5.0.0 [audioplayers_platform_interface flutter]
• audioplayers_darwin 6.0.0 [audioplayers_platform_interface flutter]
• audioplayers_linux 4.0.0 [audioplayers_platform_interface flutter]
• audioplayers_platform_interface 7.0.0 [collection flutter meta plugin_platform_interface]
• audioplayers_web 5.0.1 [audioplayers_platform_interface flutter flutter_web_plugins web]
• audioplayers_windows 4.0.0 [audioplayers_platform_interface flutter]
• bloc 7.2.1 [meta]
• boolean_selector 2.1.1 [source_span string_scanner]
• build 2.4.1 [analyzer async convert crypto glob logging meta package_config path]
• build_config 1.1.1 [checked_yaml json_annotation path pubspec_parse yaml]
• build_daemon 4.0.2 [built_collection built_value crypto http_multi_server logging path pool shelf shelf_web_socket stream_transform watcher web_socket_channel]
• build_resolvers 2.4.2 [analyzer async build collection convert crypto graphs logging package_config path pool pub_semver stream_transform yaml]
• build_runner_core 7.3.2 [async build build_config build_resolvers collection convert crypto glob graphs json_annotation logging meta package_config path pool timing watcher yaml]
• built_collection 5.1.1
• built_value 8.9.2 [built_collection collection fixnum meta]
• cached_network_image_platform_interface 4.1.1 [flutter flutter_cache_manager]
• cached_network_image_web 1.3.0 [cached_network_image_platform_interface flutter flutter_cache_manager]
• characters 1.3.0
• charcode 1.3.1
• checked_yaml 2.0.3 [json_annotation source_span yaml]
• cli_util 0.3.5 [meta path]
• clock 1.1.1
• code_builder 4.10.0 [built_collection built_value collection matcher meta]
• collection 1.18.0
• convert 3.1.1 [typed_data]
• cross_file 0.3.4+2 [meta web]
• csslib 0.17.3 [source_span]
• dart_style 2.3.6 [analyzer args collection path pub_semver source_span]
• dbus 0.7.10 [args ffi meta xml]
• device_info_plus_platform_interface 7.0.1 [flutter meta plugin_platform_interface]
• equatable 2.0.5 [collection meta]
• extended_image_library 4.0.5 [crypto flutter http_client_helper js path path_provider web]
• extension 0.6.0 [meta]
• fake_async 1.3.1 [clock collection]
• ffi 2.1.3
• file 7.0.0 [meta path]
• file_selector_linux 0.9.2+1 [cross_file file_selector_platform_interface flutter]
• file_selector_macos 0.9.4 [cross_file file_selector_platform_interface flutter]
• file_selector_platform_interface 2.6.2 [cross_file flutter http plugin_platform_interface]
• file_selector_windows 0.9.3+2 [cross_file file_selector_platform_interface flutter]
• firebase_analytics_platform_interface 4.2.2 [_flutterfire_internals firebase_core flutter meta plugin_platform_interface]
• firebase_analytics_web 0.5.9+2 [_flutterfire_internals firebase_analytics_platform_interface firebase_core firebase_core_web flutter flutter_web_plugins]
• firebase_app_check_platform_interface 0.1.0+35 [_flutterfire_internals firebase_core flutter meta plugin_platform_interface]
• firebase_app_check_web 0.1.2+13 [_flutterfire_internals firebase_app_check_platform_interface firebase_core firebase_core_web flutter flutter_web_plugins web]
• firebase_auth_platform_interface 7.4.4 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
• firebase_core_platform_interface 5.2.1 [collection flutter flutter_test meta plugin_platform_interface]
• firebase_core_web 2.17.5 [firebase_core_platform_interface flutter flutter_web_plugins meta web]
• firebase_crashlytics_platform_interface 3.6.41 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
• firebase_dynamic_links_platform_interface 0.2.6+41 [_flutterfire_internals firebase_core flutter meta plugin_platform_interface]
• firebase_messaging_platform_interface 4.5.43 [_flutterfire_internals firebase_core flutter meta plugin_platform_interface]
• firebase_messaging_web 3.8.13 [_flutterfire_internals firebase_core firebase_core_web firebase_messaging_platform_interface flutter flutter_web_plugins meta web]
• firebase_remote_config_platform_interface 1.4.41 [_flutterfire_internals firebase_core flutter meta plugin_platform_interface]
• firebase_remote_config_web 1.6.13 [firebase_core firebase_core_web firebase_remote_config_platform_interface flutter flutter_web_plugins]
• fixnum 1.1.0
• flutter_hooks 0.18.6 [flutter]
• flutter_inappwebview 5.8.0 [flutter]
• flutter_local_notifications_linux 4.0.1 [dbus ffi flutter flutter_local_notifications_platform_interface path xdg_directories]
• flutter_local_notifications_platform_interface 7.2.0 [flutter plugin_platform_interface]
• flutter_plugin_android_lifecycle 2.0.22 [flutter]
• flutter_staggered_grid_view 0.7.0 [flutter]
• flutter_web_plugins 0.0.0 [flutter characters collection material_color_utilities meta vector_math]
• frontend_server_client 4.0.0 [async path]
• glob 2.1.2 [async collection file path string_scanner]
• google_identity_services_web 0.3.1+4 [meta web]
• google_sign_in_android 6.1.28 [flutter google_sign_in_platform_interface]
• google_sign_in_ios 5.7.7 [flutter google_sign_in_platform_interface]
• google_sign_in_platform_interface 2.4.5 [flutter plugin_platform_interface]
• google_sign_in_web 0.12.4+2 [flutter flutter_web_plugins google_identity_services_web google_sign_in_platform_interface http web]
• graphs 2.3.2 [collection]
• html 0.15.4 [csslib source_span]
• http_client_helper 3.0.0 [http]
• http_multi_server 3.2.1 [async]
• http_parser 4.0.2 [collection source_span string_scanner typed_data]
• image 3.3.0 [archive meta xml]
• image_cropper_for_web 5.1.0 [flutter flutter_web_plugins image_cropper_platform_interface web]
• image_cropper_platform_interface 6.1.0 [flutter plugin_platform_interface http]
• image_picker_android 0.8.12+13 [flutter flutter_plugin_android_lifecycle image_picker_platform_interface]
• image_picker_ios 0.8.12 [flutter image_picker_platform_interface]
• image_picker_linux 0.2.1+1 [file_selector_linux file_selector_platform_interface flutter image_picker_platform_interface]
• image_picker_macos 0.2.1+1 [file_selector_macos file_selector_platform_interface flutter image_picker_platform_interface]
• image_picker_platform_interface 2.10.0 [cross_file flutter http plugin_platform_interface]
• image_picker_windows 0.2.1+1 [file_selector_platform_interface file_selector_windows flutter image_picker_platform_interface]
• in_app_review_platform_interface 2.0.5 [flutter url_launcher plugin_platform_interface platform]
• io 1.0.4 [meta path string_scanner]
• jovial_misc 0.8.5 [pointycastle async collection convert meta]
• js 0.6.7 [meta]
• leak_tracker 10.0.5 [clock collection meta path vm_service]
• leak_tracker_flutter_testing 3.0.5 [flutter leak_tracker leak_tracker_testing matcher meta]
• leak_tracker_testing 3.0.1 [leak_tracker matcher meta]
• lints 1.0.1
• logging 1.2.0
• matcher 0.12.16+1 [async meta stack_trace term_glyph test_api]
• material_color_utilities 0.11.1 [collection]
• meta 1.15.0
• mime 1.0.6
• nested 1.0.0 [flutter]
• numerus 1.1.1
• octo_image 2.1.0 [flutter]
• package_config 2.1.0 [path]
• package_info_plus_platform_interface 3.0.1 [flutter meta plugin_platform_interface]
• path 1.9.0
• path_parsing 1.0.1 [vector_math meta]
• path_provider_android 2.2.10 [flutter path_provider_platform_interface]
• path_provider_foundation 2.4.0 [flutter path_provider_platform_interface]
• path_provider_linux 2.2.1 [ffi flutter path path_provider_platform_interface xdg_directories]
• path_provider_platform_interface 2.1.2 [flutter platform plugin_platform_interface]
• path_provider_windows 2.3.0 [ffi flutter path path_provider_platform_interface]
• permission_handler_android 12.0.12 [flutter permission_handler_platform_interface]
• permission_handler_apple 9.4.5 [flutter permission_handler_platform_interface]
• permission_handler_platform_interface 4.2.2 [flutter meta plugin_platform_interface]
• permission_handler_windows 0.2.1 [flutter permission_handler_platform_interface]
• petitparser 6.0.2 [meta]
• photo_view 0.15.0 [flutter]
• platform 3.1.5
• plugin_platform_interface 2.1.8 [meta]
• pointycastle 3.9.1 [collection convert js]
• pool 1.5.1 [async stack_trace]
• provider 6.1.2 [collection flutter nested]
• pub_semver 2.1.4 [collection meta]
• pubspec_parse 1.3.0 [checked_yaml collection json_annotation pub_semver yaml]
• qr 3.0.2 [meta]
• quiver 3.2.1 [matcher]
• rational 2.2.3
• recase 4.1.0
• scrollable_positioned_list 0.2.3 [flutter collection]
• share_plus_platform_interface 4.0.0 [cross_file flutter meta mime plugin_platform_interface path_provider uuid]
• shared_preferences_android 2.3.2 [flutter shared_preferences_platform_interface]
• shared_preferences_foundation 2.5.2 [flutter shared_preferences_platform_interface]
• shared_preferences_linux 2.4.1 [file flutter path path_provider_linux path_provider_platform_interface shared_preferences_platform_interface]
• shared_preferences_platform_interface 2.4.1 [flutter plugin_platform_interface]
• shared_preferences_web 2.4.2 [flutter flutter_web_plugins shared_preferences_platform_interface web]
• shared_preferences_windows 2.4.1 [file flutter path path_provider_platform_interface path_provider_windows shared_preferences_platform_interface]
• shelf 1.4.1 [async collection http_parser path stack_trace stream_channel]
• shelf_web_socket 2.0.0 [shelf stream_channel web_socket_channel]
• sign_in_with_apple_platform_interface 1.1.0 [flutter plugin_platform_interface meta]
• sign_in_with_apple_web 2.1.0 [flutter flutter_web_plugins sign_in_with_apple_platform_interface]
• sky_engine 0.0.99
• sliver_tools 0.2.12 [flutter]
• source_gen 1.5.0 [analyzer async build dart_style glob path source_span yaml]
• source_helper 1.3.4 [analyzer collection source_gen]
• source_span 1.10.0 [collection path term_glyph]
• sprintf 7.0.0
• sqflite 2.3.3+1 [flutter sqflite_common path]
• sqflite_common 2.5.4+2 [synchronized path meta]
• stack_trace 1.11.1 [path]
• standard_message_codec 0.0.1+4
• stream_channel 2.1.2 [async]
• stream_transform 2.1.0
• string_scanner 1.2.0 [source_span]
• synchronized 3.2.0
• term_glyph 1.2.1
• test_api 0.7.2 [async boolean_selector collection meta source_span stack_trace stream_channel string_scanner term_glyph]
• timezone 0.9.4 [path]
• timing 1.0.1 [json_annotation]
• typed_data 1.3.2 [collection]
• universal_platform 1.1.0
• url_launcher_android 6.3.10 [flutter url_launcher_platform_interface]
• url_launcher_ios 6.3.1 [flutter url_launcher_platform_interface]
• url_launcher_linux 3.2.0 [flutter url_launcher_platform_interface]
• url_launcher_macos 3.2.0 [flutter url_launcher_platform_interface]
• url_launcher_platform_interface 2.3.2 [flutter plugin_platform_interface]
• url_launcher_web 2.3.3 [flutter flutter_web_plugins url_launcher_platform_interface web]
• url_launcher_windows 3.1.2 [flutter url_launcher_platform_interface]
• vector_graphics 1.1.11+1 [flutter http vector_graphics_codec]
• vector_graphics_codec 1.1.11+1
• vector_graphics_compiler 1.1.11+1 [args meta path_parsing xml vector_graphics_codec path]
• vector_math 2.1.4
• video_player_android 2.7.2 [flutter video_player_platform_interface]
• video_player_avfoundation 2.6.1 [flutter video_player_platform_interface]
• video_player_platform_interface 6.2.2 [flutter plugin_platform_interface]
• video_player_web 2.3.2 [flutter flutter_web_plugins video_player_platform_interface web]
• vm_service 14.2.4
• watcher 1.1.0 [async path]
• web 0.5.1
• web_socket 0.1.6 [web]
• web_socket_channel 3.0.1 [async crypto stream_channel web web_socket]
• webview_flutter 4.9.0 [flutter webview_flutter_android webview_flutter_platform_interface webview_flutter_wkwebview]
• webview_flutter_android 3.16.7 [flutter webview_flutter_platform_interface]
• webview_flutter_platform_interface 2.10.0 [flutter meta plugin_platform_interface]
• webview_flutter_wkwebview 3.15.0 [flutter path webview_flutter_platform_interface]
• win32 5.5.4 [ffi]
• win32_registry 1.1.4 [ffi win32]
• xdg_directories 1.0.4 [meta path]
• xml 6.5.0 [collection meta petitparser]
• yaml 3.1.2 [collection source_span string_scanner]
• youtube_player_iframe_web 3.0.2 [http flutter flutter_web_plugins web webview_flutter_platform_interface]

Additional context and comments

No response

[SelaseKay]

Hi @LoadJulz . Thanks for reporting. I'm unable to reproduce this issue. Which browser did you experience this on?

[LoadJulz]

Tried Chrome Desktop and Mobile and Safari. All on Apple devices.

[LoadJulz]

Could it be that this has something to do with a wrong redirect URL? My host app uses a Firebase URL, but without the 'firebaseapp' ending. However, on the Google auth screen, it says that it will redirect to a URL with 'firebaseapp'. You can also check the screenshot for better understanding.

[SelaseKay]

I'm not quite sure. Can you provide a full sample code reproducing this issue?

[LoadJulz]

I've found the issue. Because I was migrating to WASM on another target in my code I needed to add the following to my firebase.json:

"headers": [
      {
        "source": "**",
        "headers": [
          {
            "key": "Cross-Origin-Embedder-Policy",
            "value": "require-corp"
          },
          {
            "key": "Cross-Origin-Opener-Policy",
            "value": "same-origin"
          }
        ]
      }
    ]

This leaded to the error for builds that don't use WASM. I will now differentiate between different targets and which firebase.json to use.

[SelaseKay]

Great