[REQUIRED] Please fill in the following fields:

• Unity editor version: 2019年4月6日f1
• Firebase Unity SDK version: 7.1.0
• Source you installed the SDK: .unitypackage
• Problematic Firebase Component: Cloud Messaging
• Other Firebase Components in use:
• Additional SDKs you are using:
• Platform you are using the Unity editor on: Mac
• Platform you are targeting: iOS
• Scripting Runtime: Mono

[REQUIRED] Please describe the question here:

When I build quickstart-unity/messaging/testapp on iOS and send a message while the app is in foreground, I expected to see a notification banner to show up, but actually it didn't. Only MessageReceived event was fired.

Is this an intended behavior?
If so, is there any way to show the banner on an app in foreground?