[FCM] `onMessage.listen` is not triggered on MacOS when app is in foreground (or with a significant delay)

[Tom3652]

Description

I have raised an issue in the flutter repo and was asked to try to raise the issue here since it's something that might be related to a lower API level : firebase/flutterfire#17339

Reproducing the issue

You will find the info in the above linked issue.

Firebase SDK Version

11.15.0

Xcode Version

16.4

Installation Method

CocoaPods

Firebase Product(s)

Messaging

Targeted Platforms

macOS

Relevant Log Output

If using Swift Package Manager, the project's Package.resolved

Expand Package.resolved snippet

Replace this line with the contents of your Package.resolved.

If using CocoaPods, the project's Podfile.lock

Expand Podfile.lock snippet

PODS:
  - app_badge_plus (1.2.3):
    - FlutterMacOS
  - app_links (1.0.0):
    - FlutterMacOS
  - app_settings (5.1.1):
    - FlutterMacOS
  - AppAuth (2.0.0):
    - AppAuth/Core (= 2.0.0)
    - AppAuth/ExternalUserAgent (= 2.0.0)
  - AppAuth/Core (2.0.0)
  - AppAuth/ExternalUserAgent (2.0.0):
    - AppAuth/Core
  - AppCheckCore (11.2.0):
    - GoogleUtilities/Environment (~> 8.0)
    - GoogleUtilities/UserDefaults (~> 8.0)
    - PromisesObjC (~> 2.4)
  - connectivity_plus (0.0.1):
    - FlutterMacOS
  - desktop_drop (0.0.1):
    - FlutterMacOS
  - device_info_plus (0.0.1):
    - FlutterMacOS
  - file_picker (0.0.1):
    - FlutterMacOS
  - file_selector_macos (0.0.1):
    - FlutterMacOS
  - Firebase/Analytics (11.15.0):
    - Firebase/Core
  - Firebase/AppCheck (11.15.0):
    - Firebase/CoreOnly
    - FirebaseAppCheck (~> 11.15.0)
  - Firebase/Auth (11.15.0):
    - Firebase/CoreOnly
    - FirebaseAuth (~> 11.15.0)
  - Firebase/Core (11.15.0):
    - Firebase/CoreOnly
    - FirebaseAnalytics (~> 11.15.0)
  - Firebase/CoreOnly (11.15.0):
    - FirebaseCore (~> 11.15.0)
  - Firebase/Crashlytics (11.15.0):
    - Firebase/CoreOnly
    - FirebaseCrashlytics (~> 11.15.0)
  - Firebase/Database (11.15.0):
    - Firebase/CoreOnly
    - FirebaseDatabase (~> 11.15.0)
  - Firebase/Messaging (11.15.0):
    - Firebase/CoreOnly
    - FirebaseMessaging (~> 11.15.0)
  - Firebase/RemoteConfig (11.15.0):
    - Firebase/CoreOnly
    - FirebaseRemoteConfig (~> 11.15.0)
  - Firebase/Storage (11.15.0):
    - Firebase/CoreOnly
    - FirebaseStorage (~> 11.15.0)
  - firebase_analytics (11.6.0):
    - Firebase/Analytics (= 11.15.0)
    - firebase_core
    - FlutterMacOS
  - firebase_app_check (0.3.2-10):
    - Firebase/AppCheck (~> 11.15.0)
    - Firebase/CoreOnly (~> 11.15.0)
    - firebase_core
    - FlutterMacOS
  - firebase_auth (5.7.0):
    - Firebase/Auth (~> 11.15.0)
    - Firebase/CoreOnly (~> 11.15.0)
    - firebase_core
    - FlutterMacOS
  - firebase_core (3.15.2):
    - Firebase/CoreOnly (~> 11.15.0)
    - FlutterMacOS
  - firebase_crashlytics (4.3.10):
    - Firebase/CoreOnly (~> 11.15.0)
    - Firebase/Crashlytics (~> 11.15.0)
    - firebase_core
    - FlutterMacOS
  - firebase_database (11.3.10):
    - Firebase/CoreOnly (~> 11.15.0)
    - Firebase/Database (~> 11.15.0)
    - firebase_core
    - FlutterMacOS
  - firebase_messaging (15.2.10):
    - Firebase/CoreOnly (~> 11.15.0)
    - Firebase/Messaging (~> 11.15.0)
    - firebase_core
    - FlutterMacOS
  - firebase_remote_config (5.5.0):
    - Firebase/CoreOnly (~> 11.15.0)
    - Firebase/RemoteConfig (~> 11.15.0)
    - firebase_core
    - FlutterMacOS
  - firebase_storage (12.4.10):
    - Firebase/CoreOnly (~> 11.15.0)
    - Firebase/Storage (~> 11.15.0)
    - firebase_core
    - FlutterMacOS
  - FirebaseABTesting (11.15.0):
    - FirebaseCore (~> 11.15.0)
  - FirebaseAnalytics (11.15.0):
    - FirebaseAnalytics/Default (= 11.15.0)
    - FirebaseCore (~> 11.15.0)
    - FirebaseInstallations (~> 11.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 8.1)
    - GoogleUtilities/MethodSwizzler (~> 8.1)
    - GoogleUtilities/Network (~> 8.1)
    - "GoogleUtilities/NSData+zlib (~> 8.1)"
    - nanopb (~> 3.30910.0)
  - FirebaseAnalytics/Default (11.15.0):
    - FirebaseCore (~> 11.15.0)
    - FirebaseInstallations (~> 11.0)
    - GoogleAppMeasurement/Default (= 11.15.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 8.1)
    - GoogleUtilities/MethodSwizzler (~> 8.1)
    - GoogleUtilities/Network (~> 8.1)
    - "GoogleUtilities/NSData+zlib (~> 8.1)"
    - nanopb (~> 3.30910.0)
  - FirebaseAppCheck (11.15.0):
    - AppCheckCore (~> 11.0)
    - FirebaseAppCheckInterop (~> 11.0)
    - FirebaseCore (~> 11.15.0)
    - GoogleUtilities/Environment (~> 8.1)
    - GoogleUtilities/UserDefaults (~> 8.1)
  - FirebaseAppCheckInterop (11.15.0)
  - FirebaseAuth (11.15.0):
    - FirebaseAppCheckInterop (~> 11.0)
    - FirebaseAuthInterop (~> 11.0)
    - FirebaseCore (~> 11.15.0)
    - FirebaseCoreExtension (~> 11.15.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 8.1)
    - GoogleUtilities/Environment (~> 8.1)
    - GTMSessionFetcher/Core (< 5.0, >= 3.4)
    - RecaptchaInterop (~> 101.0)
  - FirebaseAuthInterop (11.15.0)
  - FirebaseCore (11.15.0):
    - FirebaseCoreInternal (~> 11.15.0)
    - GoogleUtilities/Environment (~> 8.1)
    - GoogleUtilities/Logger (~> 8.1)
  - FirebaseCoreExtension (11.15.0):
    - FirebaseCore (~> 11.15.0)
  - FirebaseCoreInternal (11.15.0):
    - "GoogleUtilities/NSData+zlib (~> 8.1)"
  - FirebaseCrashlytics (11.15.0):
    - FirebaseCore (~> 11.15.0)
    - FirebaseInstallations (~> 11.0)
    - FirebaseRemoteConfigInterop (~> 11.0)
    - FirebaseSessions (~> 11.0)
    - GoogleDataTransport (~> 10.0)
    - GoogleUtilities/Environment (~> 8.1)
    - nanopb (~> 3.30910.0)
    - PromisesObjC (~> 2.4)
  - FirebaseDatabase (11.15.0):
    - FirebaseAppCheckInterop (~> 11.0)
    - FirebaseCore (~> 11.15.0)
    - FirebaseSharedSwift (~> 11.0)
    - GoogleUtilities/UserDefaults (~> 8.1)
    - leveldb-library (~> 1.22)
  - FirebaseInstallations (11.15.0):
    - FirebaseCore (~> 11.15.0)
    - GoogleUtilities/Environment (~> 8.1)
    - GoogleUtilities/UserDefaults (~> 8.1)
    - PromisesObjC (~> 2.4)
  - FirebaseMessaging (11.15.0):
    - FirebaseCore (~> 11.15.0)
    - FirebaseInstallations (~> 11.0)
    - GoogleDataTransport (~> 10.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 8.1)
    - GoogleUtilities/Environment (~> 8.1)
    - GoogleUtilities/Reachability (~> 8.1)
    - GoogleUtilities/UserDefaults (~> 8.1)
    - nanopb (~> 3.30910.0)
  - FirebaseRemoteConfig (11.15.0):
    - FirebaseABTesting (~> 11.0)
    - FirebaseCore (~> 11.15.0)
    - FirebaseInstallations (~> 11.0)
    - FirebaseRemoteConfigInterop (~> 11.0)
    - FirebaseSharedSwift (~> 11.0)
    - GoogleUtilities/Environment (~> 8.1)
    - "GoogleUtilities/NSData+zlib (~> 8.1)"
  - FirebaseRemoteConfigInterop (11.15.0)
  - FirebaseSessions (11.15.0):
    - FirebaseCore (~> 11.15.0)
    - FirebaseCoreExtension (~> 11.15.0)
    - FirebaseInstallations (~> 11.0)
    - GoogleDataTransport (~> 10.0)
    - GoogleUtilities/Environment (~> 8.1)
    - GoogleUtilities/UserDefaults (~> 8.1)
    - nanopb (~> 3.30910.0)
    - PromisesSwift (~> 2.1)
  - FirebaseSharedSwift (11.15.0)
  - FirebaseStorage (11.15.0):
    - FirebaseAppCheckInterop (~> 11.0)
    - FirebaseAuthInterop (~> 11.0)
    - FirebaseCore (~> 11.15.0)
    - FirebaseCoreExtension (~> 11.15.0)
    - GoogleUtilities/Environment (~> 8.1)
    - GTMSessionFetcher/Core (< 5.0, >= 3.4)
  - flutter_image_compress_macos (1.0.0):
    - FlutterMacOS
  - flutter_local_notifications (0.0.1):
    - FlutterMacOS
  - flutter_timezone (0.1.0):
    - FlutterMacOS
  - FlutterMacOS (1.0.0)
  - geolocator_apple (1.2.0):
    - Flutter
    - FlutterMacOS
  - google_sign_in_ios (0.0.1):
    - Flutter
    - FlutterMacOS
    - GoogleSignIn (~> 9.0)
    - GTMSessionFetcher (>= 3.4.0)
  - GoogleAppMeasurement/Core (11.15.0):
    - GoogleUtilities/AppDelegateSwizzler (~> 8.1)
    - GoogleUtilities/MethodSwizzler (~> 8.1)
    - GoogleUtilities/Network (~> 8.1)
    - "GoogleUtilities/NSData+zlib (~> 8.1)"
    - nanopb (~> 3.30910.0)
  - GoogleAppMeasurement/Default (11.15.0):
    - GoogleAdsOnDeviceConversion (= 2.1.0)
    - GoogleAppMeasurement/Core (= 11.15.0)
    - GoogleAppMeasurement/IdentitySupport (= 11.15.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 8.1)
    - GoogleUtilities/MethodSwizzler (~> 8.1)
    - GoogleUtilities/Network (~> 8.1)
    - "GoogleUtilities/NSData+zlib (~> 8.1)"
    - nanopb (~> 3.30910.0)
  - GoogleAppMeasurement/IdentitySupport (11.15.0):
    - GoogleAppMeasurement/Core (= 11.15.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 8.1)
    - GoogleUtilities/MethodSwizzler (~> 8.1)
    - GoogleUtilities/Network (~> 8.1)
    - "GoogleUtilities/NSData+zlib (~> 8.1)"
    - nanopb (~> 3.30910.0)
  - GoogleDataTransport (10.1.0):
    - nanopb (~> 3.30910.0)
    - PromisesObjC (~> 2.4)
  - GoogleSignIn (9.0.0):
    - AppAuth (~> 2.0)
    - AppCheckCore (~> 11.0)
    - GTMAppAuth (~> 5.0)
    - GTMSessionFetcher/Core (~> 3.3)
  - GoogleUtilities/AppDelegateSwizzler (8.1.0):
    - GoogleUtilities/Environment
    - GoogleUtilities/Logger
    - GoogleUtilities/Network
    - GoogleUtilities/Privacy
  - GoogleUtilities/Environment (8.1.0):
    - GoogleUtilities/Privacy
  - GoogleUtilities/Logger (8.1.0):
    - GoogleUtilities/Environment
    - GoogleUtilities/Privacy
  - GoogleUtilities/MethodSwizzler (8.1.0):
    - GoogleUtilities/Logger
    - GoogleUtilities/Privacy
  - GoogleUtilities/Network (8.1.0):
    - GoogleUtilities/Logger
    - "GoogleUtilities/NSData+zlib"
    - GoogleUtilities/Privacy
    - GoogleUtilities/Reachability
  - "GoogleUtilities/NSData+zlib (8.1.0)":
    - GoogleUtilities/Privacy
  - GoogleUtilities/Privacy (8.1.0)
  - GoogleUtilities/Reachability (8.1.0):
    - GoogleUtilities/Logger
    - GoogleUtilities/Privacy
  - GoogleUtilities/UserDefaults (8.1.0):
    - GoogleUtilities/Logger
    - GoogleUtilities/Privacy
  - GTMAppAuth (5.0.0):
    - AppAuth/Core (~> 2.0)
    - GTMSessionFetcher/Core (< 4.0, >= 3.3)
  - GTMSessionFetcher (3.5.0):
    - GTMSessionFetcher/Full (= 3.5.0)
  - GTMSessionFetcher/Core (3.5.0)
  - GTMSessionFetcher/Full (3.5.0):
    - GTMSessionFetcher/Core
  - image_editor_common (1.0.0):
    - Flutter
    - FlutterMacOS
  - in_app_review (2.0.0):
    - FlutterMacOS
  - leveldb-library (1.22.6)
  - nanopb (3.30910.0):
    - nanopb/decode (= 3.30910.0)
    - nanopb/encode (= 3.30910.0)
  - nanopb/decode (3.30910.0)
  - nanopb/encode (3.30910.0)
  - package_info_plus (0.0.1):
    - FlutterMacOS
  - path_provider_foundation (0.0.1):
    - Flutter
    - FlutterMacOS
  - PromisesObjC (2.4.0)
  - PromisesSwift (2.4.0):
    - PromisesObjC (= 2.4.0)
  - purchases_flutter (9.1.0):
    - FlutterMacOS
    - PurchasesHybridCommon (= 16.0.2)
  - PurchasesHybridCommon (16.0.2):
    - RevenueCat (= 5.33.1)
  - RevenueCat (5.33.1)
  - rive_common (0.0.1):
    - FlutterMacOS
  - share_plus (0.0.1):
    - FlutterMacOS
  - shared_preferences_foundation (0.0.1):
    - Flutter
    - FlutterMacOS
  - sign_in_with_apple (0.0.1):
    - FlutterMacOS
  - sqflite_darwin (0.0.4):
    - Flutter
    - FlutterMacOS
  - syncfusion_pdfviewer_macos (0.0.1):
    - FlutterMacOS
  - url_launcher_macos (0.0.1):
    - FlutterMacOS
  - video_compress (0.3.0):
    - FlutterMacOS
  - video_player_avfoundation (0.0.1):
    - Flutter
    - FlutterMacOS

DEPENDENCIES:
  - app_badge_plus (from `Flutter/ephemeral/.symlinks/plugins/app_badge_plus/macos`)
  - app_links (from `Flutter/ephemeral/.symlinks/plugins/app_links/macos`)
  - app_settings (from `Flutter/ephemeral/.symlinks/plugins/app_settings/macos`)
  - connectivity_plus (from `Flutter/ephemeral/.symlinks/plugins/connectivity_plus/macos`)
  - desktop_drop (from `Flutter/ephemeral/.symlinks/plugins/desktop_drop/macos`)
  - device_info_plus (from `Flutter/ephemeral/.symlinks/plugins/device_info_plus/macos`)
  - file_picker (from `Flutter/ephemeral/.symlinks/plugins/file_picker/macos`)
  - file_selector_macos (from `Flutter/ephemeral/.symlinks/plugins/file_selector_macos/macos`)
  - firebase_analytics (from `Flutter/ephemeral/.symlinks/plugins/firebase_analytics/macos`)
  - firebase_app_check (from `Flutter/ephemeral/.symlinks/plugins/firebase_app_check/macos`)
  - firebase_auth (from `Flutter/ephemeral/.symlinks/plugins/firebase_auth/macos`)
  - firebase_core (from `Flutter/ephemeral/.symlinks/plugins/firebase_core/macos`)
  - firebase_crashlytics (from `Flutter/ephemeral/.symlinks/plugins/firebase_crashlytics/macos`)
  - firebase_database (from `Flutter/ephemeral/.symlinks/plugins/firebase_database/macos`)
  - firebase_messaging (from `Flutter/ephemeral/.symlinks/plugins/firebase_messaging/macos`)
  - firebase_remote_config (from `Flutter/ephemeral/.symlinks/plugins/firebase_remote_config/macos`)
  - firebase_storage (from `Flutter/ephemeral/.symlinks/plugins/firebase_storage/macos`)
  - flutter_image_compress_macos (from `Flutter/ephemeral/.symlinks/plugins/flutter_image_compress_macos/macos`)
  - flutter_local_notifications (from `Flutter/ephemeral/.symlinks/plugins/flutter_local_notifications/macos`)
  - flutter_timezone (from `Flutter/ephemeral/.symlinks/plugins/flutter_timezone/macos`)
  - FlutterMacOS (from `Flutter/ephemeral`)
  - geolocator_apple (from `Flutter/ephemeral/.symlinks/plugins/geolocator_apple/darwin`)
  - google_sign_in_ios (from `Flutter/ephemeral/.symlinks/plugins/google_sign_in_ios/darwin`)
  - image_editor_common (from `Flutter/ephemeral/.symlinks/plugins/image_editor_common/macos`)
  - in_app_review (from `Flutter/ephemeral/.symlinks/plugins/in_app_review/macos`)
  - package_info_plus (from `Flutter/ephemeral/.symlinks/plugins/package_info_plus/macos`)
  - path_provider_foundation (from `Flutter/ephemeral/.symlinks/plugins/path_provider_foundation/darwin`)
  - purchases_flutter (from `Flutter/ephemeral/.symlinks/plugins/purchases_flutter/macos`)
  - rive_common (from `Flutter/ephemeral/.symlinks/plugins/rive_common/macos`)
  - share_plus (from `Flutter/ephemeral/.symlinks/plugins/share_plus/macos`)
  - shared_preferences_foundation (from `Flutter/ephemeral/.symlinks/plugins/shared_preferences_foundation/darwin`)
  - sign_in_with_apple (from `Flutter/ephemeral/.symlinks/plugins/sign_in_with_apple/macos`)
  - sqflite_darwin (from `Flutter/ephemeral/.symlinks/plugins/sqflite_darwin/darwin`)
  - syncfusion_pdfviewer_macos (from `Flutter/ephemeral/.symlinks/plugins/syncfusion_pdfviewer_macos/macos`)
  - url_launcher_macos (from `Flutter/ephemeral/.symlinks/plugins/url_launcher_macos/macos`)
  - video_compress (from `Flutter/ephemeral/.symlinks/plugins/video_compress/macos`)
  - video_player_avfoundation (from `Flutter/ephemeral/.symlinks/plugins/video_player_avfoundation/darwin`)

SPEC REPOS:
  trunk:
    - AppAuth
    - AppCheckCore
    - Firebase
    - FirebaseABTesting
    - FirebaseAnalytics
    - FirebaseAppCheck
    - FirebaseAppCheckInterop
    - FirebaseAuth
    - FirebaseAuthInterop
    - FirebaseCore
    - FirebaseCoreExtension
    - FirebaseCoreInternal
    - FirebaseCrashlytics
    - FirebaseDatabase
    - FirebaseInstallations
    - FirebaseMessaging
    - FirebaseRemoteConfig
    - FirebaseRemoteConfigInterop
    - FirebaseSessions
    - FirebaseSharedSwift
    - FirebaseStorage
    - GoogleAppMeasurement
    - GoogleDataTransport
    - GoogleSignIn
    - GoogleUtilities
    - GTMAppAuth
    - GTMSessionFetcher
    - leveldb-library
    - nanopb
    - PromisesObjC
    - PromisesSwift
    - PurchasesHybridCommon
    - RevenueCat

EXTERNAL SOURCES:
  app_badge_plus:
    :path: Flutter/ephemeral/.symlinks/plugins/app_badge_plus/macos
  app_links:
    :path: Flutter/ephemeral/.symlinks/plugins/app_links/macos
  app_settings:
    :path: Flutter/ephemeral/.symlinks/plugins/app_settings/macos
  connectivity_plus:
    :path: Flutter/ephemeral/.symlinks/plugins/connectivity_plus/macos
  desktop_drop:
    :path: Flutter/ephemeral/.symlinks/plugins/desktop_drop/macos
  device_info_plus:
    :path: Flutter/ephemeral/.symlinks/plugins/device_info_plus/macos
  file_picker:
    :path: Flutter/ephemeral/.symlinks/plugins/file_picker/macos
  file_selector_macos:
    :path: Flutter/ephemeral/.symlinks/plugins/file_selector_macos/macos
  firebase_analytics:
    :path: Flutter/ephemeral/.symlinks/plugins/firebase_analytics/macos
  firebase_app_check:
    :path: Flutter/ephemeral/.symlinks/plugins/firebase_app_check/macos
  firebase_auth:
    :path: Flutter/ephemeral/.symlinks/plugins/firebase_auth/macos
  firebase_core:
    :path: Flutter/ephemeral/.symlinks/plugins/firebase_core/macos
  firebase_crashlytics:
    :path: Flutter/ephemeral/.symlinks/plugins/firebase_crashlytics/macos
  firebase_database:
    :path: Flutter/ephemeral/.symlinks/plugins/firebase_database/macos
  firebase_messaging:
    :path: Flutter/ephemeral/.symlinks/plugins/firebase_messaging/macos
  firebase_remote_config:
    :path: Flutter/ephemeral/.symlinks/plugins/firebase_remote_config/macos
  firebase_storage:
    :path: Flutter/ephemeral/.symlinks/plugins/firebase_storage/macos
  flutter_image_compress_macos:
    :path: Flutter/ephemeral/.symlinks/plugins/flutter_image_compress_macos/macos
  flutter_local_notifications:
    :path: Flutter/ephemeral/.symlinks/plugins/flutter_local_notifications/macos
  flutter_timezone:
    :path: Flutter/ephemeral/.symlinks/plugins/flutter_timezone/macos
  FlutterMacOS:
    :path: Flutter/ephemeral
  geolocator_apple:
    :path: Flutter/ephemeral/.symlinks/plugins/geolocator_apple/darwin
  google_sign_in_ios:
    :path: Flutter/ephemeral/.symlinks/plugins/google_sign_in_ios/darwin
  image_editor_common:
    :path: Flutter/ephemeral/.symlinks/plugins/image_editor_common/macos
  in_app_review:
    :path: Flutter/ephemeral/.symlinks/plugins/in_app_review/macos
  package_info_plus:
    :path: Flutter/ephemeral/.symlinks/plugins/package_info_plus/macos
  path_provider_foundation:
    :path: Flutter/ephemeral/.symlinks/plugins/path_provider_foundation/darwin
  purchases_flutter:
    :path: Flutter/ephemeral/.symlinks/plugins/purchases_flutter/macos
  rive_common:
    :path: Flutter/ephemeral/.symlinks/plugins/rive_common/macos
  share_plus:
    :path: Flutter/ephemeral/.symlinks/plugins/share_plus/macos
  shared_preferences_foundation:
    :path: Flutter/ephemeral/.symlinks/plugins/shared_preferences_foundation/darwin
  sign_in_with_apple:
    :path: Flutter/ephemeral/.symlinks/plugins/sign_in_with_apple/macos
  sqflite_darwin:
    :path: Flutter/ephemeral/.symlinks/plugins/sqflite_darwin/darwin
  syncfusion_pdfviewer_macos:
    :path: Flutter/ephemeral/.symlinks/plugins/syncfusion_pdfviewer_macos/macos
  url_launcher_macos:
    :path: Flutter/ephemeral/.symlinks/plugins/url_launcher_macos/macos
  video_compress:
    :path: Flutter/ephemeral/.symlinks/plugins/video_compress/macos
  video_player_avfoundation:
    :path: Flutter/ephemeral/.symlinks/plugins/video_player_avfoundation/darwin

SPEC CHECKSUMS:
  app_badge_plus: b31f348e6fe30980b308b9ed40c0d2bd3c4a2adc
  app_links: 86a57d95d4dec830373b8c85c21d1c59a4a5dc21
  app_settings: 140be3a9c0fc1f681e44afe9f549ab037b3aa3a2
  AppAuth: 1c1a8afa7e12f2ec3a294d9882dfa5ab7d3cb063
  AppCheckCore: cc8fd0a3a230ddd401f326489c99990b013f0c4f
  connectivity_plus: 0a976dfd033b59192912fa3c6c7b54aab5093802
  desktop_drop: e52397f93b3daec9fe1d504f1d5a21b76403d8ae
  device_info_plus: 1b14eed9bf95428983aed283a8d51cce3d8c4215
  file_picker: e716a70a9fe5fd9e09ebc922d7541464289443af
  file_selector_macos: cc3858c981fe6889f364731200d6232dac1d812d
  Firebase: d99ac19b909cd2c548339c2241ecd0d1599ab02e
  firebase_analytics: c6a3f80cf2e8681b4e6b3402162acf116c4d3a57
  firebase_app_check: d3fa7155214c56f6c5f656c3a40ad5a025bf91b6
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[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[rizafran]

Hi @Tom3652, thanks for reaching out. I tried to reproduce it using the native SDK, but I was able to receive notifications in foreground. Afaik, onMessage.listen is not available in iOS SDK. Also, make sure that your certificate is up to date and your provisioning profile contains your mac device.

[Tom3652]

Hi @rizafran !
Thanks for your quick feedback, i can confirm that i indeed receive the push notification but after more or less 10 minutes so the certificate is okay (my app is in production for few years with active push notifications even on MacOS)
-> But i have not enough tested on MacOS because i have seen this behavior only recently.

Anyway i will get back to the flutter repo with the info !

[rizafran]

Thanks for confirming, @Tom3652. After having some tests again, it looks like there's an intermittent delay in receiving the notifications. I guess it's a backend issue, but I'll try to consult with the engineers.

[rizafran]

Hi @Tom3652, I've tried multiple tests again today, and I was able to receive notifications without delay. Could you try if you're still encountering the issue?

[Tom3652]

Hi @rizafran , thanks for your tests.
I have done the same and i confirm that the issue still exists, i have received the push notification on my mac 7 minutes after receiving it on my iPhone (same account / same notification with 2 FCM tokens)
-> I am using the same code server side to send the push notification :

android_config = messaging.AndroidConfig(
            notification=messaging.AndroidNotification(
                body=content,
                title=title,
                sound="default",
                priority="high",
            ),
            data=data
        )
        apns_alert = messaging.ApsAlert(
            title=title,
            body=content,
        )
        apns_config = messaging.APNSConfig(
            payload=messaging.APNSPayload(
                aps=messaging.Aps(
                    alert=apns_alert,
                    sound="default",
                    badge=1
                )
            ),
        )
        notification = messaging.MulticastMessage(
            data=data,
            tokens=tokens,
            apns=apns_config,
            android=android_config
        )
        response = messaging.send_each_for_multicast(notification)
        logging.warning(
            f'{response.success_count} notifications sent successfully and failed : {response.failure_count}.')

[cbenhagen]

@Tom3652 did you try sending push notifications directly through the Push Notifications Console
already?

To debug, it might also be worth creating a minimal Swift implementation without Flutter or Firebase:

import Cocoa
import UserNotifications

@main
class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDelegate {

    func applicationDidFinishLaunching(_ aNotification: Notification) {
        let center = UNUserNotificationCenter.current()
        center.delegate = self
        
        center.requestAuthorization(options: [.alert, .sound, .badge]) { granted, error in
            if granted {
                print("Notifications authorized")
                DispatchQueue.main.async {
                    NSApplication.shared.registerForRemoteNotifications()
                }
            } else {
                print("Notification permission denied.")
            }
        }
    }

    func application(_ application: NSApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
        let token = deviceToken.map { String(format: "%02x", $0) }.joined()
        print("APNs device token: \(token)")
    }

    func application(_ application: NSApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
        print("Failed to register for notifications: \(error)")
    }

    func userNotificationCenter(_ center: UNUserNotificationCenter,
                                willPresent notification: UNNotification,
                                withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
        completionHandler([.banner, .sound])
    }
}