Cordova 3.8.0 runnning on iPhone6 with 320x568px - Scaling Issue

A new Cordova HelloWorld application with Cordova 5.0.0 and iOs 3.8.0 deployed via Xcode on iPhone 6 runnns with 320x568px instead of 375x667px.

Further information on this issue:

1. runs in the simulator just fine

2. issue was found on my "older" current project, which should be updated for iPhone6. This project started with Cordova 3.5. Found the bugreport on apache cordova. First: Tried the bugfixe suggestions -> no success. Second: Updated Cordova -> no success.

3. after these steps I downloaded the HelloWorld application to try if it works with completely new project -> no success.