“App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure”– quite the annoying error message eh? Okay, to fix this error and get on with your life using HTTP instead of HTTPS, you just need to add a little XML code to your Info.plist file and all will be well…
Add This Snippet of XML to Your Info.plist File (Github Gist) 
Reference This Complete Info.plist File For Context (Github Gist)