I receive an “FirebaseSimpleLogin: An unknown error occurred” in Firebase when I try to log in with Twitter
问题 Yesterday, I discovered Firebase and started to use it. I deployed an edited version (I just changed the CSS) of the chat app provided by Firebase, Everything went OK until I added Twitter Logging option. I couldn't authenticate my app with Twitter even though I followed these instructions and I activated "Sign in with Twitter" from Twitter Application Management Panel. This is the code I'm using in my chat app to log in (anything else is related to Twitter logging in my code): // instatiate