title: signInWithPopup doesn't work on android(Ionic 2 + Firebase 3)
body: <p>I want to use signInWithPopup in my Ionic 2+Firebase 3 application! It works great on the desktop browser but, when i generate APK for android, it throws network error in auth.js before popup appears. Then, i enter credentials and after that app's blank screen appears. Thanks in advance</p>
  
  <pre><code> var provider = new firebase.auth.GoogleAuthProvider();
  firebase.auth().signInWithPopup(provider).then(function(result) {
    // This gives you Access Token. You can use it to access the Google API.
    this.navCtrl.push(WriteReviewPage);
    // ...
  }).catch(function(error) {
    alert(error.message);
  });
  </code></pre>
  
  <p>}</p>