NSURLProtocol TutorialUpdate 9/3/14: This tutorial has now been updated for iOS 8 and Swift; check it out! NSURLProtocol is like a magic key to the URL. It lets you redefine how Apple’s URL Loading System operates, by defining custom URL schemes and redefining the behavior of existing URL schemes. Does that sound magical? It should. Because, if you look for it, I’ve got a sneaky feeliing you’ll find URLs — much like lo
