This is in response to this blog:
http://blog.bignerdranch.com/3784-javascriptcore-and-ios-7/
Thoughts from the iOS devs on SO?
I came up with an approach to get the UIWebView JSContext that is different from the KVC approach.
Basically, by knowing some details about WebKit, we can implement a delegate callback method on NSObject and be handed the JSContext when it is created. Details here:
https://github.com/TomSwift/UIWebView-TS_JavaScriptContext