AppAvailability Bug
appAvailability.checkreturns alway error callback.
iOS 9 Error in Xcode
-canOpenURL: failed for URL: "://" - error: "This app is not allowed to query for scheme "
Explanation
Apple changed thecanOpenURLmethod on iOS 9. Apps which are checking for URL Schemes have to declare these Schemes as it is submitted to Apple. The articleQuick Take on iOS 9 URL Scheme Changesexpains the changes in detail.
Solution: Add URL Schemes to the Whitelist
Simply open your app's .plist (usuallyplatforms/ios//-Info.plist)with an editor and add the following code with your needed Schemes.
eg:
