Http get not working anymore at ios 9.3.3?

Hello yesterday I updated my iphone 6S to ios 9.3.3. My ionic project which uses http get is not working anymore but I get 0 Errors in xcode.
With ios 9.0.2 everything was working fine.
My application is working perfectly on Android device.

Just tested it on Simulator and it works…
Tested on:
Safari -> Working (Mac El Capitan)
Chrome -> Working (Windows)
Android -> Working (Android 6.0.1)
Iphone Simulator -> Working (Xcode running iPhone 6S Simulator @iOS 9.3.3)
iPhone 6S -> NOT WORKING (iOS 9.3.3)

I dont know what I am doing wrong, I also tested on an iPhone 6 and it is not working…