Fix: Memory leak on iOS
Fix: Memory leak on iOS

- Requests are leaking instances of the AFHTTPSessionManager
- Over time this causes iOS to terminate the app
- Inspiration for the fix: https://stackoverflow.com/a/41345142

silkimen/cordova-plugin-advanced-http,silkimen/cordova-plugin-advanced-http,silkimen/cordova-plugin-advanced-http,silkimen/cordova-plugin-advanced-http