🐛 [Authentication] Forwarding "Firebase Email Link Authentication" link in Windows removes '/' from Action URL's scheme

[luckyhandler]

Bug report

Describe the bug
I implemented email link authentication which works fine and reliably in most cases. One of the working ones is:

• User enters its email address
• User receives the correct email with the login link
• User clicks on the link and gets back into the app via dynamic links

What's not working is if the user forwards the received mail in a Microsoft Mail Client such as Outlook. This causes the link to be altered from
https://appdev.page.link/?link=https://...

to

https://appdev.page.link/?link=https:/...

So as you can see the '/' gets removed by these clients. This was only reproducible on Microsoft Mail and Microsoft Outlook.
In my opinion a reason may be that the link query parameter is not correctly encoded.

Steps to reproduce

Steps to reproduce the behavior:

1. Create a dynamic link

final parameters = DynamicLinkParameters(
    uriPrefix: 'https://app.page.link',
    link: Uri.parse('https://app.de/signUp'),
    androidParameters: AndroidParameters(
      packageName: 'de.app.dev',
      minimumVersion: 100,
    ),
    iosParameters: IosParameters(
      bundleId: 'de.app.dev',
      minimumVersion: '1.0.0',
    ),
  );

  final dynamicUrl = (await parameters.buildShortLink()).shortUrl;

2. Create ActionCodeSettings

  final actionCodeSettings = ActionCodeSettings(
    url: dynamicUrl.toString(),
    handleCodeInApp: true,
    iOSBundleId: 'de.app.dev',
    androidPackageName: 'de.app.dev',
    androidInstallApp: true,
    androidMinimumVersion: '21',
  );

3. Get the email from the user
4. Send it to Firebase

FirebaseAuth.instance.sendSignInLinkToEmail(
    email: email,
    actionCodeSettings: actionCodeSettings,
);

5. Forward the received mail on Microsoft Outlook (no matter if Mac OS or Windows)
6. See that the forwarded mail contains ?link=https:/ instead of ?link=https://

Expected behavior

Forwarding the mail shouldn't have any impact on the login link independently from the used mail client.

Sample code

Future<void> sendSignInLinkToEmail(String email) async {
  final parameters = DynamicLinkParameters(
    uriPrefix: 'https://app.page.link',
    link: Uri.parse('https://app.de/signUp'),
    androidParameters: AndroidParameters(
      packageName: 'de.app.dev',
      minimumVersion: 100,
    ),
    iosParameters: IosParameters(
      bundleId: 'de.app.dev',
      minimumVersion: '1.0.0',
    ),
  );

  final dynamicUrl = (await parameters.buildShortLink()).shortUrl;

  final actionCodeSettings = ActionCodeSettings(
    url: dynamicUrl.toString(),
    handleCodeInApp: true,
    iOSBundleId: 'de.app.dev',
    androidPackageName: 'de.app.dev',
    androidInstallApp: true,
    androidMinimumVersion: '21',
  );

  return await FirebaseAuth.instance.sendSignInLinkToEmail(
    email: email,
    actionCodeSettings: actionCodeSettings,
  );
}

---

Flutter doctor

Run flutter doctor and paste the output below:

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Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 2.5.3, on macOS 12.0.1 21A559 darwin-x64, locale de-DE)
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
[✓] Xcode - develop for iOS and macOS
[✓] Chrome - develop for the web
[✓] Android Studio (version 2020.3)
[✓] IntelliJ IDEA Community Edition (version 2021.2.3)
[✓] VS Code (version 1.61.2)
[✓] Connected device (3 available)

---

Flutter dependencies

Run flutter pub deps -- --style=compact and paste the output below:

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dependencies:
- adaptive_action_sheet 2.0.0 [flutter universal_io]
- android_intent 2.0.2 [flutter platform meta]
- app_review 2.1.1+1 [http package_info url_launcher flutter]
- app_settings 4.1.1 [flutter]
- app_tracking_transparency 2.0.2+1 [flutter]
- async 2.8.1 [collection meta]
- auto_size_text 3.0.0 [flutter]
- bloc 7.2.1 [meta]
- cloud_firestore 2.5.4 [cloud_firestore_platform_interface cloud_firestore_web collection firebase_core firebase_core_platform_interface flutter meta]
- collection 1.15.0
- connectivity_plus 2.0.2 [flutter meta connectivity_plus_platform_interface connectivity_plus_linux connectivity_plus_macos connectivity_plus_web connectivity_plus_windows]
- device_info_plus 3.1.0 [flutter device_info_plus_platform_interface device_info_plus_linux device_info_plus_macos device_info_plus_web device_info_plus_windows]
- easy_localization 3.0.0 [flutter shared_preferences intl args path easy_logger flutter_localizations]
- equatable 2.0.3 [collection meta]
- feature_discovery 0.14.0 [flutter provider shared_preferences]
- fimber 0.6.1
- firebase_analytics 8.3.4 [firebase_analytics_platform_interface firebase_analytics_web firebase_core flutter meta]
- firebase_auth 3.1.4 [firebase_auth_platform_interface firebase_auth_web firebase_core firebase_core_platform_interface flutter meta]
- firebase_core 1.8.0 [firebase_core_platform_interface firebase_core_web flutter meta]
- firebase_crashlytics 2.2.4 [firebase_core firebase_core_platform_interface firebase_crashlytics_platform_interface flutter stack_trace]
- firebase_dynamic_links 2.0.11 [firebase_core flutter]
- firebase_messaging 10.0.9 [firebase_core firebase_core_platform_interface firebase_messaging_platform_interface firebase_messaging_web flutter meta]
- firebase_remote_config 0.11.0+2 [firebase_core firebase_core_platform_interface firebase_remote_config_platform_interface flutter]
- firebase_storage 10.0.6 [firebase_core firebase_core_platform_interface firebase_storage_platform_interface firebase_storage_web flutter]
- flutter 0.0.0 [characters collection meta typed_data vector_math sky_engine]
- flutter_bloc 7.1.0 [flutter bloc provider]
- flutter_local_notifications 9.0.1 [clock flutter flutter_local_notifications_linux flutter_local_notifications_platform_interface timezone]
- flutter_rating_bar 4.0.0 [flutter]
- flutter_secure_storage 4.2.1 [meta flutter]
- flutter_svg 0.23.0+1 [flutter meta path_drawing vector_math xml]
- flutter_time_picker_spinner 2.0.0 [flutter]
- flutter_tts 3.2.2 [flutter flutter_web_plugins]
- flutter_typeahead 3.2.1 [flutter flutter_keyboard_visibility]
- font_awesome_flutter 9.2.0 [flutter]
- geoflutterfire 3.0.1 [flutter cloud_firestore rxdart]
- geolocator 7.7.1 [flutter geolocator_platform_interface geolocator_android geolocator_apple geolocator_web]
- google_maps_flutter 2.0.11 [flutter flutter_plugin_android_lifecycle google_maps_flutter_platform_interface]
- google_maps_webservice 0.0.20-nullsafety.5 [http meta json_annotation]
- grouped_list 4.1.0 [flutter]
- here_sdk 4.9.2 [ffi intl meta url_launcher flutter flutter_localizations]
- http 0.13.4 [async http_parser meta path]
- image_cropper 1.4.1 [flutter]
- image_picker 0.8.4+3 [flutter flutter_plugin_android_lifecycle image_picker_for_web image_picker_platform_interface]
- intl 0.17.0 [clock path]
- intl_phone_number_input 0.7.0+2 [flutter meta libphonenumber_plugin equatable collection]
- json_annotation 4.3.0 [meta]
- kt_dart 0.10.0 [meta]
- map_launcher 2.1.1 [flutter]
- network_image_to_byte 0.0.1 [flutter]
- package_info 2.0.2 [flutter]
- permission_handler 8.2.5 [flutter meta permission_handler_platform_interface]
- pull_to_refresh 2.0.0 [flutter]
- rxdart 0.27.2
- shared_preferences 2.0.8 [flutter meta shared_preferences_linux shared_preferences_macos shared_preferences_platform_interface shared_preferences_web shared_preferences_windows]
- table_calendar 3.0.3 [flutter intl simple_gesture_detector]
- url_launcher 6.0.12 [flutter meta url_launcher_linux url_launcher_macos url_launcher_platform_interface url_launcher_web url_launcher_windows]
- vrpay_flutter 0.0.40 [flutter]
- wakelock 0.5.6 [flutter meta wakelock_macos wakelock_platform_interface wakelock_web wakelock_windows]

dev dependencies:
- analyzer 2.7.0 [_fe_analyzer_shared cli_util collection convert crypto glob meta package_config path pub_semver source_span watcher yaml]
- bloc_test 8.3.0 [bloc meta mocktail test]
- build_runner 2.1.4 [args async analyzer 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]
- build_verify 2.0.0 [path test]
- effective_dart 1.3.2
- firebase_auth_mocks 0.8.1 [flutter firebase_auth meta equatable]
- flutter_launcher_icons 0.9.2 [args image path yaml]
- flutter_test 0.0.0 [flutter test_api path fake_async clock stack_trace vector_math async boolean_selector characters charcode collection matcher meta source_span stream_channel string_scanner term_glyph typed_data]
- json_serializable 6.0.1 [analyzer async build build_config collection json_annotation meta path pub_semver pubspec_parse source_gen source_helper]
- mockito 5.0.16 [analyzer build code_builder collection dart_style matcher meta path source_gen test_api]

transitive dependencies:
- _fe_analyzer_shared 30.0.0 [meta]
- archive 3.1.2 [crypto path]
- args 2.2.0
- boolean_selector 2.1.0 [source_span string_scanner]
- build 2.1.0 [analyzer async convert crypto glob logging meta path]
- build_config 1.0.0 [checked_yaml json_annotation path pubspec_parse yaml]
- build_daemon 3.0.0 [built_collection built_value http_multi_server logging pedantic path pool shelf shelf_web_socket stream_transform watcher web_socket_channel]
- build_resolvers 2.0.4 [analyzer async build crypto graphs logging path package_config pool pub_semver stream_transform yaml]
- build_runner_core 7.2.2 [async build build_config build_resolvers collection convert crypto glob graphs json_annotation logging meta path package_config pool timing watcher yaml]
- built_collection 5.1.0
- built_value 8.1.1 [built_collection collection fixnum meta]
- characters 1.1.0
- charcode 1.3.1
- checked_yaml 2.0.1 [json_annotation source_span yaml]
- cli_util 0.3.3 [meta path]
- clock 1.1.0
- cloud_firestore_platform_interface 5.4.3 [collection firebase_core flutter meta plugin_platform_interface]
- cloud_firestore_web 2.4.4 [cloud_firestore_platform_interface collection firebase_core firebase_core_web flutter flutter_web_plugins js]
- code_builder 4.0.0 [built_collection built_value collection matcher meta]
- connectivity_plus_linux 1.1.0 [flutter connectivity_plus_platform_interface dbus meta nm]
- connectivity_plus_macos 1.2.1 [connectivity_plus_platform_interface flutter]
- connectivity_plus_platform_interface 1.1.0 [flutter meta plugin_platform_interface]
- connectivity_plus_web 1.1.0+1 [connectivity_plus_platform_interface flutter_web_plugins flutter]
- connectivity_plus_windows 1.2.0 [connectivity_plus_platform_interface flutter]
- convert 3.0.1 [typed_data]
- coverage 1.0.3 [args logging package_config path source_maps stack_trace vm_service]
- cross_file 0.3.1+4 [flutter meta]
- crypto 3.0.1 [collection typed_data]
- dart_style 2.0.2 [analyzer args path pub_semver source_span]
- dbus 0.5.4 [args meta pedantic xml]
- device_info_plus_linux 2.1.0 [device_info_plus_platform_interface file flutter meta]
- device_info_plus_macos 2.2.0 [device_info_plus_platform_interface flutter]
- device_info_plus_platform_interface 2.2.0 [flutter meta plugin_platform_interface]
- device_info_plus_web 2.1.0 [device_info_plus_platform_interface flutter_web_plugins flutter]
- device_info_plus_windows 2.1.0 [device_info_plus_platform_interface ffi flutter win32]
- easy_logger 0.0.2 [flutter]
- fake_async 1.2.0 [clock collection]
- ffi 1.0.0
- file 6.1.2 [meta path]
- firebase 9.0.1 [http http_parser js]
- firebase_analytics_platform_interface 2.0.1 [flutter meta]
- firebase_analytics_web 0.3.0+1 [firebase firebase_analytics_platform_interface flutter flutter_web_plugins meta]
- firebase_auth_platform_interface 6.1.2 [firebase_core flutter meta plugin_platform_interface]
- firebase_auth_web 3.1.3 [firebase_auth_platform_interface firebase_core firebase_core_web flutter flutter_web_plugins http_parser intl js meta]
- firebase_core_platform_interface 4.0.1 [collection flutter meta plugin_platform_interface]
- firebase_core_web 1.1.0 [firebase_core_platform_interface flutter flutter_web_plugins js meta]
- firebase_crashlytics_platform_interface 3.1.4 [collection firebase_core flutter meta plugin_platform_interface]
- firebase_messaging_platform_interface 3.0.7 [firebase_core flutter meta plugin_platform_interface]
- firebase_messaging_web 2.0.7 [firebase_core firebase_core_web firebase_messaging_platform_interface flutter flutter_web_plugins js meta]
- firebase_remote_config_platform_interface 0.3.0+7 [firebase_core flutter meta plugin_platform_interface]
- firebase_storage_platform_interface 4.0.4 [collection firebase_core flutter meta plugin_platform_interface]
- firebase_storage_web 3.0.4 [async firebase_core firebase_core_web firebase_storage_platform_interface flutter flutter_web_plugins http js meta]
- fixnum 1.0.0
- flutter_keyboard_visibility 5.0.2 [meta flutter_keyboard_visibility_platform_interface flutter_keyboard_visibility_web flutter]
- flutter_keyboard_visibility_platform_interface 2.0.0 [flutter meta plugin_platform_interface]
- flutter_keyboard_visibility_web 2.0.0 [flutter_keyboard_visibility_platform_interface flutter_web_plugins flutter]
- flutter_local_notifications_linux 0.3.0 [flutter flutter_local_notifications_platform_interface dbus path xdg_directories]
- flutter_local_notifications_platform_interface 5.0.0 [flutter plugin_platform_interface]
- flutter_localizations 0.0.0 [flutter intl characters clock collection meta path typed_data vector_math]
- flutter_plugin_android_lifecycle 2.0.2 [flutter]
- flutter_web_plugins 0.0.0 [flutter js characters collection meta typed_data vector_math]
- frontend_server_client 2.1.0 [async path]
- geolocator_android 2.1.0 [flutter geolocator_platform_interface]
- geolocator_apple 1.2.1 [flutter geolocator_platform_interface]
- geolocator_platform_interface 2.3.6 [flutter plugin_platform_interface vector_math meta]
- geolocator_web 2.0.5 [flutter flutter_web_plugins geolocator_platform_interface]
- glob 2.0.1 [async collection file path pedantic string_scanner]
- google_maps_flutter_platform_interface 2.1.3 [collection flutter meta plugin_platform_interface stream_transform]
- graphs 2.0.0
- http_multi_server 3.0.1 [async]
- http_parser 4.0.0 [charcode collection source_span string_scanner typed_data]
- image 3.0.2 [archive meta xml]
- image_picker_for_web 2.1.0 [flutter flutter_web_plugins image_picker_platform_interface meta]
- image_picker_platform_interface 2.4.1 [flutter http meta plugin_platform_interface cross_file]
- io 1.0.3 [meta path string_scanner]
- js 0.6.3
- libphonenumber 2.0.2 [flutter meta]
- libphonenumber_platform_interface 0.3.1 [flutter plugin_platform_interface]
- libphonenumber_plugin 0.2.3 [flutter flutter_web_plugins libphonenumber_platform_interface libphonenumber_web libphonenumber]
- libphonenumber_web 0.2.0+1 [flutter flutter_web_plugins js libphonenumber_platform_interface]
- logging 1.0.1
- matcher 0.12.10 [stack_trace]
- meta 1.7.0
- mime 1.0.0
- mocktail 0.1.4 [collection matcher test]
- nested 1.0.0 [flutter]
- nm 0.3.0 [dbus]
- node_preamble 2.0.1
- package_config 2.0.0 [path]
- path 1.8.0
- path_drawing 0.5.1 [vector_math meta path_parsing flutter]
- path_parsing 0.2.1 [vector_math meta]
- path_provider_linux 2.0.0 [path xdg_directories path_provider_platform_interface flutter]
- path_provider_platform_interface 2.0.1 [flutter meta platform plugin_platform_interface]
- path_provider_windows 2.0.1 [path_provider_platform_interface meta path flutter ffi win32]
- pedantic 1.11.1
- permission_handler_platform_interface 3.7.0 [flutter meta plugin_platform_interface]
- petitparser 4.1.0 [meta]
- platform 3.0.0
- plugin_platform_interface 2.0.1 [meta]
- pool 1.5.0 [async stack_trace]
- process 4.2.1 [file path platform]
- provider 5.0.0 [collection flutter nested]
- pub_semver 2.0.0 [collection]
- pubspec_parse 1.0.0 [checked_yaml collection json_annotation pub_semver yaml]
- shared_preferences_linux 2.0.0 [flutter file meta path path_provider_linux shared_preferences_platform_interface]
- shared_preferences_macos 2.0.0 [shared_preferences_platform_interface flutter]
- shared_preferences_platform_interface 2.0.0 [flutter]
- shared_preferences_web 2.0.0 [shared_preferences_platform_interface flutter flutter_web_plugins meta]
- shared_preferences_windows 2.0.0 [shared_preferences_platform_interface flutter file meta path path_provider_platform_interface path_provider_windows]
- shelf 1.2.0 [async collection http_parser path stack_trace stream_channel]
- shelf_packages_handler 3.0.0 [path shelf shelf_static]
- shelf_static 1.1.0 [convert http_parser mime path shelf]
- shelf_web_socket 1.0.1 [shelf stream_channel web_socket_channel]
- simple_gesture_detector 0.2.0 [flutter]
- sky_engine 0.0.99
- source_gen 1.0.3 [analyzer async build dart_style glob meta path pedantic source_span yaml]
- source_helper 1.3.0 [analyzer collection source_gen]
- source_map_stack_trace 2.1.0 [path stack_trace source_maps]
- source_maps 0.10.10 [source_span]
- source_span 1.8.1 [collection path term_glyph]
- stack_trace 1.10.0 [path]
- stream_channel 2.1.0 [async]
- stream_transform 2.0.0
- string_scanner 1.1.0 [charcode source_span]
- term_glyph 1.2.0
- test 1.17.10 [analyzer async boolean_selector collection coverage http_multi_server io js node_preamble package_config path pedantic pool shelf shelf_packages_handler shelf_static shelf_web_socket source_span stack_trace stream_channel typed_data web_socket_channel webkit_inspection_protocol yaml test_api test_core]
- test_api 0.4.2 [async boolean_selector collection meta source_span stack_trace stream_channel string_scanner term_glyph matcher]
- test_core 0.4.0 [analyzer async args boolean_selector collection coverage frontend_server_client glob io meta package_config path pedantic pool source_map_stack_trace source_maps source_span stack_trace stream_channel vm_service yaml matcher test_api]
- timezone 0.8.0 [path]
- timing 1.0.0 [json_annotation]
- typed_data 1.3.0 [collection]
- universal_io 2.0.4 [collection crypto meta typed_data]
- url_launcher_linux 2.0.0 [flutter]
- url_launcher_macos 2.0.0 [flutter]
- url_launcher_platform_interface 2.0.4 [flutter plugin_platform_interface]
- url_launcher_web 2.0.1 [flutter flutter_web_plugins meta url_launcher_platform_interface]
- url_launcher_windows 2.0.0 [flutter]
- vector_math 2.1.0
- vm_service 6.2.0
- wakelock_macos 0.4.0 [flutter flutter_web_plugins wakelock_platform_interface]
- wakelock_platform_interface 0.3.0 [flutter meta]
- wakelock_web 0.4.0 [flutter flutter_web_plugins js wakelock_platform_interface]
- wakelock_windows 0.2.0 [flutter wakelock_platform_interface win32]
- watcher 1.0.0 [async path pedantic]
- web_socket_channel 2.1.0 [async crypto stream_channel]
- webkit_inspection_protocol 1.0.0 [logging]
- win32 2.2.5 [ffi]
- xdg_directories 0.2.0 [meta path process]
- xml 5.1.2 [collection meta petitparser]
- yaml 3.1.0 [collection source_span string_scanner]

---

[darshankawar]

Thanks for the detailed report. I see the same behavior on latest stable and master using latest auth plugin version.

stable, master flutter doctor -v

[✓] Flutter (Channel stable, 2.5.3, on Mac OS X 10.15.4 19E2269 darwin-x64,
    locale en-GB)
    • Flutter version 2.5.3 at /Users/dhs/documents/fluttersdk/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 18116933e7 (2 days ago), 2021-10-15 10:46:35 -0700
    • Engine revision d3ea636dc5
    • Dart version 2.14.4

[✓] Android toolchain - develop for Android devices (Android SDK version 30)
    • Android SDK at /Users/dhs/Library/Android/sdk
    • Platform android-30, build-tools 30.0.3
    • ANDROID_HOME = /Users/dhs/Library/Android/sdk
    • Java binary at: /Users/dhs/Library/Application Support/JetBrains/Toolbox/apps/AndroidStudio/ch-0/202.7486908/Android
      Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6915495)
    • All Android licenses accepted.    

[✓] Xcode - develop for iOS and macOS
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 12.3, Build version 12C33
    • CocoaPods version 1.10.1

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 4.1)
    • Android Studio at /Users/dhs/Library/Application Support/JetBrains/Toolbox/apps/AndroidStudio/ch-0/202.7486908/Android
      Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build
      1.8.0_242-release-1644-b3-6915495)        

[✓] VS Code (version 1.57.1)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.21.0

[✓] Connected device (4 available)
    • Darshan's iphone (mobile)  • 21150b119064aecc249dfcfe05e259197461ce23 •
      ios            • iOS 14.4.1 18D61
    • iPhone 12 Pro Max (mobile) • A5473606-0213-4FD8-BA16-553433949729     •
      ios            • com.apple.CoreSimulator.SimRuntime.iOS-14-3 (simulator)
    • macOS (desktop)            • macos                                    •
      darwin-x64     • Mac OS X 10.15.4 19E2269 darwin-x64
    • Chrome (web)               • chrome                                   •
      web-javascript • Google Chrome 93.0.4577.82


• No issues found!

[✓] Flutter (Channel master, 2.6.0-12.0.pre.669, on Mac OS X 10.15.4 19E2269
    darwin-x64, locale en-GB)
    • Flutter version 2.6.0-12.0.pre.669 at
      /Users/dhs/documents/fluttersdk/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 06ceba5a1a (9 hours ago), 2021-11-09 20:58:02 -0500
    • Engine revision 76bf5a1ad0
    • Dart version 2.15.0 (build 2.15.0-285.0.dev)

[✓] Android toolchain - develop for Android devices (Android SDK version 30)
    • Android SDK at /Users/dhs/Library/Android/sdk
    • Platform android-30, build-tools 30.0.3
    • ANDROID_HOME = /Users/dhs/Library/Android/sdk
    • Java binary at: /Users/dhs/Library/Application Support/JetBrains/Toolbox/apps/AndroidStudio/ch-0/202.7486908/Android
      Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6915495)
    • All Android licenses accepted.    

[✓] Xcode - develop for iOS and macOS
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 12.5.1, Build version 12E507
    • CocoaPods version 1.10.1

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 4.1)
    • Android Studio at /Users/dhs/Library/Application Support/JetBrains/Toolbox/apps/AndroidStudio/ch-0/202.7486908/Android
      Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build
      1.8.0_242-release-1644-b3-6915495)        

[✓] VS Code (version 1.57.1)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.21.0

[[✓] Connected device (4 available)
    • Darshan's iphone (mobile)  • 21150b119064aecc249dfcfe05e259197461ce23 •
      ios            • iOS 14.4.1 18D61
    • iPhone 12 Pro Max (mobile) • A5473606-0213-4FD8-BA16-553433949729     •
      ios            • com.apple.CoreSimulator.SimRuntime.iOS-14-3 (simulator)
    • macOS (desktop)            • macos                                    •
      darwin-x64     • Mac OS X 10.15.4 19E2269 darwin-x64
    • Chrome (web)               • chrome                                   •
      web-javascript • Google Chrome 93.0.4577.82


• No issues found!

https://pub.dev/packages/firebase_auth/install

[darshankawar]

Looking at the use case, ie, forwarding the email link, could be related to Firebase auth directly and not specifically to the flutterfire auth plugin, but will leave it for team to decide and for their insights.

[luckyhandler]

Let me know if you need any further information to solve this problem @darshankawar

[luckyhandler]

Any news on this?

[russellwheatley]

Hey @luckyhandler, just to be clear, the correct link is produced on different email clients (e.g. gmail),but specifically on Microsoft Outlook it produces the result you've outlined?

[luckyhandler]

@russellwheatley That is right. It only occurs on Microsoft Mail and Microsoft Outlook