title: Firebase Facebook Authentication Error with openFB in Ionic
body: <p>I can successfully access the facebook userdata via the OpenFB API, but when I try to use:</p>
  
  <pre><code>var auth = $firebaseAuth(ref);
  auth.$authWithOAuthToken("facebook", accessToken)
  </code></pre>
  
  <p>to authenticate the user through Firebase, I get the following error:</p>
  
  <p><a href="http://i.stack.imgur.com/nBjWK.jpg" rel="nofollow">Firebase Auth Error</a></p>
  
  <p>I've tried adding several OAuth redirect URIs in the Facebook developer console:</p>
  
  <p><a href="http://i.stack.imgur.com/OOPf2.jpg" rel="nofollow">Facebook O AUth Settings</a></p>
  
  <p>I'm using the correct App ID and App Secrect from Facebook.  Any ideas?</p>