In firebase_messaging readme, you say add firebase_messaging dependency to app/build.gradle:

https://pub.dev/packages/firebase_messaging#getting-started

But in migration guide, you say remove any firebase product dependency from app/build.gradle:

https://firebase.flutter.

Google suggests enabling gzip compression before transferring files over the network:

In order to receive a gzip-encoded response you must do two things: Set an Accept-Encoding header, and modify your user agent to contain the string gzip. Here is an example of properly formed HTTP headers for enabling gzip compression:

Acc