Phonegap-plugin-push 'on notification' not firing

Hi all,

I’m trying to use phonegap-plugin-push for push notifications but I’m having trouble getting it to work and I’ve struggled to find a good example for use with the ionic framework. I’m able to get it fire the registration event fine and I receive a token but when I try sending a simple push notification through the firebase cloud messaging console usng the token nothing happens. Here is my code which I currently have in app.js:

.run(function($ionicPlatform ) {
  $ionicPlatform.ready(function() {
    // Hide the accessory bar by default (remove this to show the accessory bar above the keyboard
    // for form inputs)
    var push = PushNotification.init({
        "android": {
            "senderID": "***********"
        },
        "ios": {"alert": "true", "badge": "true", "sound": "true"},
        "windows": {}
    });
    push.on('registration', function(data) {
        console.log("registration event: "+ data.registrationId);

        //here is your registration id
    });
    push.on('notification', function(data){
      console.log("Message: "+data.message)
      var alertPopup = $ionicPopup.alert({
        title: data.message,
      });
    });
    push.on('error', function(e) {
      console.log(e.message);
    });
    if (window.cordova && window.cordova.plugins && window.cordova.plugins.Keyboard) {
      cordova.plugins.Keyboard.hideKeyboardAccessoryBar(true);
      cordova.plugins.Keyboard.disableScroll(true);
    }
    if (window.StatusBar) {
      // org.apache.cordova.statusbar required
      StatusBar.styleDefault();
    }
  });

})

Can anyone help me out?

Thanks in advance.