Running FCM on IP stops Angular rendering

I need to sometimes run my app on IP for mobile testing etc, and this used to work fine in Angular 16 since firebase would just ignore IPs but now, since Angular 20, I get:

TypeError: Cannot read properties of undefined (reading 'addEventListener')

eventually failing with

FirebaseError: Messaging: This browser doesn't support the API's required to use the Firebase SDK. (messaging/unsupported-browser).

But not before it halts the whole app and stops it rendering.

This should just not do anything when it detect a none 127.0.0.1 IP as it did before, seems like there has been a regression bug somewhere.

Specifically the issue provider is:

provideMessaging(() => getMessaging()),

從 provideMessaging(() => getMessaging()) 入口點開始，並在非 127.0.0.1 IP 上提供應用程式時重現此問題。追蹤導致 unsupported-browser error 的初始化失敗；完成條件是應用程式在該環境中繼續渲染，而不會被 Firebase Messaging 阻止。

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