Why is Firebase returning 404 errors in PhoneGap app when running on Android emulator?

Question

I am using Firebase + Firebase Simple Login in a PhoneGap app and am having issues when I run the app in an Android emulator (browser-based testing works fine).

Answer 1

You need to add firebase.com to your app's whitelist.

Assuming you're using PhoneGap 3.x+, follow these steps:

1. Edit config.xml (see Cordova's docs for more about where that file lives)

2. Add a rule allowing firebase and subdomains:

You might also find this question helpful. It has a bunch of stuff in it about whitelisting in Cordova / PhoneGap.