Facebook Login iOS opens both native and web logins

My recent app runs as expected on Android using the Facebook 6.x SDK and Plugin. ie: If you have the Facebook app installed, it will open Facebook for login and web login if not.

When I compile for iOS 4.x (Using the iOS 8.x SDK) Everything LOOKS fine until you hit the "Connect to Facebook" button. It opens up the installed Facebook app, tells me I've already allowed it, then when I close Facebook and it goes back to my game screen.... the WEB Facebook Login window is there!?

I can cancel the window because the Native APP login worked and logged me in, but why is the Login Dialog up over the Unity screen also?