Ionic facebook login

Hi team my facebook login page appear nice on emulator but when i use it on real device it doesn’t work .It start loading but after a while it desappear . I use this command to run it on real device ionic cordova run android --device

There are lots of ways you might be logging in. You need to explain the method you are using, and if you are receiving error messages when you remote debug.

i use the debug method. but no error is showed. But it seems it starts and stop quickly.