Uncaught Error: A network error

问题

after I've tried to use the firebase authentication service, I got an uncaught error: a network error (such as timeout, interrupted connection or unreachable host) has occurred

I have tried to whitelist all related domain-names:

  <allow-intent href="*.firebaseio.com" />
  <allow-intent href="*.firebaseapp.com" />
  <allow-intent href="*.google.com" />
  <allow-intent href="*.googleapis.com" />
  <allow-intent href="*.cloudflare.com" />
  <allow-intent href="auth.firebase.com" />
  <access origin="*" />

and ask for internet user permission:

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

but still - despite the code run perfectly on web browser, it keep showing this error on the android emulator.

回答1:

try, this. it worked for me.

<allow-navigation href="*.firebaseapp.com" />

来源：https://stackoverflow.com/questions/39109545/uncaught-error-a-network-error