how-to-send-push-notifications-on-flutter-web-fcm

To set up FCM push notifications for Flutter web, you must configure a custom `firebase-messaging-sw.js` service worker, integrate provided Dart helper methods for initialization, and manage device tokens within your Firebase project.

Yes, Firebase Cloud Messaging works on Flutter web by utilizing a custom service worker configuration to handle background messages and Dart helper classes to request permissions and retrieve browser device tokens.

You handle FCM messages in the background and foreground on Flutter web by configuring the service worker for background execution and using the provided Dart helper methods to listen for incoming message events in the foreground.

Before adding FCM to your Flutter web app, you need an active Firebase project and must place the `firebase-messaging-sw.js` service worker script in your web directory to enable browser push notifications.

Implementing push notifications for Flutter web is different from mobile because it requires a browser-specific service worker for message routing and web-specific permission requests rather than native mobile FCM SDK configurations.