[firebase_auth]: [web] referencing FirebaseAuthException after running release version of app throws exception.

[ZiyadF296]

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

In debug and local environment, everything behaves as intended because the compiled javascript code is not minified. However, when building for web with --release argument, and running the app either locally or hosted, this issue gets raised whenever referencing FirebaseAuthException:

main.dart.js:49549 ReferenceError: d is not defined
    at main.dart.js:143107:1
    at bun.a (main.dart.js:7392:63)
    at bun.$2 (main.dart.js:67993:14)
    at Object.z (main.dart.js:7378:10)
    at za.beA (main.dart.js:143262:10)
    at za.GS (main.dart.js:143102:21)
    at za.ap6 (main.dart.js:143103:20)
    at main.dart.js:142933:14
    at bun.a (main.dart.js:7392:63)
    at bun.$2 (main.dart.js:67993:14)

Appears like the minified Javascript code called the FirebaseAuthException d.

Reproducing the issue

My setup is as follows:

• I have a function that uses instance.signInWithCustomToken. If you provide valid credentials, everything will work as intended.
• Wrap the function in try-catch, and catch the FirebaseAuthException separately like this:

  on FirebaseAuthException catch (e) {
     switch (e.code) { // <-- calling e is what causes an exception to be raised, and it is not caught because the catch block isn't wrapped in another try-catch
        ...
     }
  }

Firebase Core version

3.2.0

Flutter Version

3.22.2

Relevant Log Output

ReferenceError: d is not defined
main.dart.js:49549 ReferenceError: d is not defined
    at main.dart.js:143107:1
    at bun.a (main.dart.js:7392:63)
    at bun.$2 (main.dart.js:67993:14)
    at Object.z (main.dart.js:7378:10)
    at za.beA (main.dart.js:143262:10)
    at za.GS (main.dart.js:143102:21)
    at za.ap6 (main.dart.js:143103:20)
    at main.dart.js:142933:14
    at bun.a (main.dart.js:7392:63)
    at bun.$2 (main.dart.js:67993:14)

Flutter dependencies

Expand Flutter dependencies snippet

```yaml Dart SDK 3.4.3 Flutter SDK 3.22.2 rexify 1.0.0+1 dependencies: - battery_plus 6.0.1 [flutter flutter_web_plugins battery_plus_platform_interface meta upower web] - cached_network_image 3.3.1 [cached_network_image_platform_interface cached_network_image_web flutter flutter_cache_manager octo_image] - client_information 2.1.4 [flutter flutter_web_plugins uuid] - cloud_firestore 5.1.0 [cloud_firestore_platform_interface cloud_firestore_web collection firebase_core firebase_core_platform_interface flutter meta] - connectivity_plus 6.0.3 [flutter flutter_web_plugins connectivity_plus_platform_interface web meta nm collection] - crop_your_image 1.1.0 [flutter image] - falcon_search 0.1.2 [flutter stemmer flutter_secure_storage] - file_picker 8.0.6 [flutter flutter_web_plugins flutter_plugin_android_lifecycle plugin_platform_interface ffi path win32 cross_file web] - firebase_auth 5.1.2 [firebase_auth_platform_interface firebase_auth_web firebase_core firebase_core_platform_interface flutter meta] - firebase_core 3.2.0 [firebase_core_platform_interface firebase_core_web flutter meta] - firebase_crashlytics 4.0.3 [firebase_core firebase_core_platform_interface firebase_crashlytics_platform_interface flutter stack_trace] - firebase_database 11.0.3 [firebase_core firebase_core_platform_interface firebase_database_platform_interface firebase_database_web flutter] - firebase_storage 12.1.1 [firebase_core firebase_core_platform_interface firebase_storage_platform_interface firebase_storage_web flutter] - flutter 0.0.0 [characters collection material_color_utilities meta vector_math sky_engine] - flutter_link_previewer 3.2.2 [flutter flutter_chat_types flutter_linkify html http linkify meta url_launcher] - flutter_markdown 0.7.3 [flutter markdown meta path] - flutter_portal 1.1.4 [collection flutter vector_math] - flutter_riverpod 2.5.1 [collection flutter meta riverpod state_notifier] - flutter_secure_storage 9.2.2 [flutter flutter_secure_storage_linux flutter_secure_storage_macos flutter_secure_storage_platform_interface flutter_secure_storage_web flutter_secure_storage_windows meta] - flutter_slidable 3.1.1 [flutter] - flutter_staggered_animations 1.1.1 [flutter] - flutter_svg 2.0.10+1 [flutter http vector_graphics vector_graphics_codec vector_graphics_compiler] - focus_detector 2.0.1 [flutter visibility_detector] - freezed_annotation 2.4.3 [collection json_annotation meta] - go_router 14.2.1 [collection flutter flutter_web_plugins logging meta] - google_generative_ai 0.4.3 [http] - google_maps_flutter 2.7.0 [flutter google_maps_flutter_android google_maps_flutter_ios google_maps_flutter_platform_interface google_maps_flutter_web] - google_maps_flutter_web 0.5.8 [collection flutter flutter_web_plugins google_maps google_maps_flutter_platform_interface sanitize_html stream_transform web] - googleapis_auth 1.6.0 [args crypto google_identity_services_web http http_parser] - http 1.2.1 [async http_parser meta web] - image 4.2.0 [archive meta xml] - intl 0.19.0 [clock meta path] - json_annotation 4.9.0 [meta] - lottie 3.1.2 [archive flutter http path vector_math] - markdown 7.2.2 [args meta] - pinch_zoom_release_unzoom 1.0.3 [flutter] - retry 3.1.2 - scroll_to_index 3.0.1 [flutter] - shared_preferences 2.2.3 [flutter shared_preferences_android shared_preferences_foundation shared_preferences_linux shared_preferences_platform_interface shared_preferences_web shared_preferences_windows] - syncfusion_flutter_barcodes 26.1.41 [flutter syncfusion_flutter_core] - syncfusion_flutter_calendar 26.1.41 [flutter timezone syncfusion_flutter_core syncfusion_flutter_datepicker intl] - syncfusion_flutter_charts 26.1.41+1 [flutter intl vector_math syncfusion_flutter_core] - syncfusion_flutter_datepicker 26.1.41 [flutter intl syncfusion_flutter_core] - syncfusion_flutter_maps 26.1.41 [flutter syncfusion_flutter_core http vector_math] - syncfusion_flutter_treemap 26.1.41 [flutter syncfusion_flutter_core] - synchronized 3.1.0+1 - 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] - web_multiple_tab_detector 0.3.0 - window_manager 0.3.9 [flutter path screen_retriever] dev dependencies: - build_runner 2.4.11 [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] - flutter_lints 4.0.0 [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] - freezed 2.5.2 [analyzer build build_config collection meta source_gen freezed_annotation json_annotation] - import_sorter 4.6.0 [args tint yaml] - json_serializable 6.8.0 [analyzer async build build_config collection json_annotation meta path pub_semver pubspec_parse source_gen source_helper] - mockito 5.4.4 [analyzer build code_builder collection dart_style matcher meta path source_gen test_api] - msix 3.16.7 [args yaml path package_config get_it image pub_semver console cli_util] transitive dependencies: - _fe_analyzer_shared 67.0.0 [meta] - _flutterfire_internals 1.3.39 [collection firebase_core firebase_core_platform_interface flutter meta] - analyzer 6.4.1 [_fe_analyzer_shared collection convert crypto glob meta package_config path pub_semver source_span watcher yaml] - archive 3.5.1 [crypto path] - args 2.5.0 - async 2.11.0 [collection meta] - battery_plus_platform_interface 2.0.0 [flutter meta plugin_platform_interface] - 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 4.0.1 [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 7.3.0 [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 4.0.0 [flutter flutter_cache_manager] - cached_network_image_web 1.2.0 [cached_network_image_platform_interface flutter flutter_cache_manager] - characters 1.3.0 - checked_yaml 2.0.3 [json_annotation source_span yaml] - cli_util 0.4.1 [meta path] - clock 1.1.1 - cloud_firestore_platform_interface 6.2.9 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface] - cloud_firestore_web 4.0.3 [_flutterfire_internals cloud_firestore_platform_interface collection firebase_core firebase_core_web flutter flutter_web_plugins] - code_builder 4.10.0 [built_collection built_value collection matcher meta] - collection 1.18.0 - connectivity_plus_platform_interface 2.0.0 [flutter meta plugin_platform_interface] - console 4.1.0 [vector_math] - convert 3.1.1 [typed_data] - coverage 1.8.0 [args logging package_config path source_maps stack_trace vm_service] - cross_file 0.3.4+1 [meta web] - crypto 3.0.3 [typed_data] - csslib 1.0.0 [source_span] - dart_style 2.3.6 [analyzer args collection path pub_semver source_span] - dbus 0.7.10 [args ffi meta xml] - equatable 2.0.5 [collection meta] - fake_async 1.3.1 [clock collection] - ffi 2.1.2 - file 7.0.0 [meta path] - firebase_auth_platform_interface 7.4.2 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface] - firebase_auth_web 5.12.4 [firebase_auth_platform_interface firebase_core firebase_core_web flutter flutter_web_plugins http_parser meta web] - firebase_core_platform_interface 5.1.0 [collection flutter flutter_test meta plugin_platform_interface] - firebase_core_web 2.17.3 [firebase_core_platform_interface flutter flutter_web_plugins meta web] - firebase_crashlytics_platform_interface 3.6.39 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface] - firebase_database_platform_interface 0.2.5+39 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface] - firebase_database_web 0.2.5+11 [collection firebase_core firebase_core_web firebase_database_platform_interface flutter flutter_web_plugins] - firebase_storage_platform_interface 5.1.26 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface] - firebase_storage_web 3.9.11 [_flutterfire_internals async firebase_core firebase_core_web firebase_storage_platform_interface flutter flutter_web_plugins http meta web] - fixnum 1.1.0 - flutter_cache_manager 3.3.2 [clock collection file flutter http path path_provider rxdart sqflite uuid] - flutter_chat_types 3.6.2 [equatable json_annotation meta] - flutter_linkify 6.0.0 [flutter linkify] - flutter_plugin_android_lifecycle 2.0.19 [flutter] - flutter_secure_storage_linux 1.2.1 [flutter flutter_secure_storage_platform_interface] - flutter_secure_storage_macos 3.1.2 [flutter flutter_secure_storage_platform_interface] - flutter_secure_storage_platform_interface 1.1.2 [flutter plugin_platform_interface] - flutter_secure_storage_web 1.2.1 [flutter flutter_secure_storage_platform_interface flutter_web_plugins js] - flutter_secure_storage_windows 3.1.2 [ffi flutter flutter_secure_storage_platform_interface path path_provider win32] - flutter_web_plugins 0.0.0 [flutter characters collection material_color_utilities meta vector_math] - frontend_server_client 3.2.0 [async path] - get_it 7.7.0 [async collection meta] - glob 2.1.2 [async collection file path string_scanner] - google_identity_services_web 0.3.1+1 [meta web] - google_maps 7.1.0 [js js_wrapping meta web] - google_maps_flutter_android 2.12.0 [flutter flutter_plugin_android_lifecycle google_maps_flutter_platform_interface stream_transform] - google_maps_flutter_ios 2.10.0 [flutter google_maps_flutter_platform_interface stream_transform] - google_maps_flutter_platform_interface 2.7.0 [collection flutter plugin_platform_interface stream_transform] - graphs 2.3.1 [collection] - html 0.15.4 [csslib source_span] - http_multi_server 3.2.1 [async] - http_parser 4.0.2 [collection source_span string_scanner typed_data] - io 1.0.4 [meta path string_scanner] - js 0.6.7 [meta] - js_wrapping 0.7.4 [js] - leak_tracker 10.0.4 [clock collection meta path vm_service] - leak_tracker_flutter_testing 3.0.3 [flutter leak_tracker leak_tracker_testing matcher meta] - leak_tracker_testing 3.0.1 [leak_tracker matcher meta] - linkify 5.0.0 - lints 4.0.0 - logging 1.2.0 - matcher 0.12.16+1 [async meta stack_trace term_glyph test_api] - material_color_utilities 0.8.0 [collection] - meta 1.12.0 - mime 1.0.5 - nm 0.5.0 [dbus] - node_preamble 2.0.2 - octo_image 2.0.0 [flutter] - package_config 2.1.0 [path] - path 1.9.0 - path_parsing 1.0.1 [vector_math meta] - path_provider 2.1.3 [flutter path_provider_android path_provider_foundation path_provider_linux path_provider_platform_interface path_provider_windows] - path_provider_android 2.2.4 [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 2.2.1 [ffi flutter path path_provider_platform_interface win32] - petitparser 6.0.2 [meta] - platform 3.1.4 - plugin_platform_interface 2.1.8 [meta] - pool 1.5.1 [async stack_trace] - pub_semver 2.1.4 [collection meta] - pubspec_parse 1.2.3 [checked_yaml collection json_annotation pub_semver yaml] - riverpod 2.5.1 [collection meta stack_trace state_notifier] - rxdart 0.27.7 - sanitize_html 2.1.0 [html meta] - screen_retriever 0.1.9 [flutter] - shared_preferences_android 2.2.2 [flutter shared_preferences_platform_interface] - shared_preferences_foundation 2.4.0 [flutter shared_preferences_platform_interface] - shared_preferences_linux 2.3.2 [file flutter path path_provider_linux path_provider_platform_interface shared_preferences_platform_interface] - shared_preferences_platform_interface 2.3.2 [flutter plugin_platform_interface] - shared_preferences_web 2.3.0 [flutter flutter_web_plugins shared_preferences_platform_interface web] - shared_preferences_windows 2.3.2 [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_packages_handler 3.0.2 [path shelf shelf_static] - shelf_static 1.1.2 [convert http_parser mime path shelf] - shelf_web_socket 1.0.4 [shelf stream_channel web_socket_channel] - sky_engine 0.0.99 - 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_map_stack_trace 2.1.1 [path source_maps stack_trace] - source_maps 0.10.12 [source_span] - 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 [synchronized path meta] - stack_trace 1.11.1 [path] - state_notifier 1.0.0 [meta] - stemmer 2.2.0 [test] - stream_channel 2.1.2 [async] - stream_transform 2.1.0 - string_scanner 1.2.0 [source_span] - syncfusion_flutter_core 26.1.41 [vector_math flutter] - term_glyph 1.2.1 - test 1.25.2 [analyzer async boolean_selector collection coverage http_multi_server io js matcher node_preamble package_config path pool shelf shelf_packages_handler shelf_static shelf_web_socket source_span stack_trace stream_channel test_api test_core typed_data web_socket_channel webkit_inspection_protocol yaml] - test_api 0.7.0 [async boolean_selector collection meta source_span stack_trace stream_channel string_scanner term_glyph] - test_core 0.6.0 [analyzer args async boolean_selector collection coverage frontend_server_client glob io meta package_config path pool source_map_stack_trace source_maps source_span stack_trace stream_channel test_api vm_service yaml] - timezone 0.9.3 [path] - timing 1.0.1 [json_annotation] - tint 2.0.1 - typed_data 1.3.2 [collection] - upower 0.7.0 [dbus] - url_launcher_android 6.3.1 [flutter url_launcher_platform_interface] - url_launcher_ios 6.3.0 [flutter url_launcher_platform_interface] - url_launcher_linux 3.1.1 [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 2.3.1 [flutter flutter_web_plugins url_launcher_platform_interface web] - url_launcher_windows 3.1.1 [flutter url_launcher_platform_interface] - uuid 4.4.0 [crypto sprintf meta fixnum] - 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 - visibility_detector 0.2.2 [flutter] - vm_service 14.2.1 - watcher 1.1.0 [async path] - web 0.5.1 - web_socket_channel 2.4.5 [async crypto stream_channel web] - webkit_inspection_protocol 1.2.1 [logging] - win32 5.5.1 [ffi] - xdg_directories 1.0.4 [meta path] - xml 6.5.0 [collection meta petitparser] - yaml 3.1.2 [collection source_span string_scanner] ```

Additional context and comments

It only happens when the compiled Javascript code is minified (release mod).

[Lyokone]

Hello @ZiyadF296 is it happening in different version of Flutter? Unfortunately, we don't have a lot of control with the way Dart is compiling the code

[ZiyadF296]

Hello, @Lyokone It has never happened on previous versions of Flutter, I compiled a new release of the app, deployed it to the web, and out of nowhere this issue popped up.

Should this issue be reported in the Flutter repo?