No login required due to Apple's reforms: https://developer.apple.com/library/prerelease/ios/releasenotes/General/RN-iOSSDK-8.0/index.html
WebKit - Known Issues -- Applications that use Apache Cordova/PhoneGap are broken due to a bug that causes the window.navigator.userAgent object to become undefined when window.navigator is replaced by a pure JavaScript wrapper object. https://issues.apache.org/jira/browse/CB-6863
