I have an application which works fine on Xcode6-Beta1 and Xcode6-Beta2 with both iOS7 and iOS8. But with Xcode6-Beta3, Beta4, Beta5 I\'m facing network issues with iOS8 but
I was receiving this error and also notices that the application Postman was also falling but was working in app Advanced Rest Client (ARC) and working in Android. So i had to install Charles to debug the communication and I notices that response code was -1. The problem was that REST programmer forgot to return response code 200.
I hope that this help other developers.