Hey @TJL signinWithPopUp() and signinWithRedirect() won’t work on Cordova apps, the protocol they try to use it https:// but the phone tries to implement file://.
To accomplish social login your best bet is to use the native plugins from Ionic Native.
For Google login: https://ionicframework.com/docs/native/google-plus/
For Facebook: https://ionicframework.com/docs/native/facebook/
Let me know if you need any help 