How to get requesting UIWebView from inside of NSURLProtocol
问题 My app uses subclassing of NSURLProtocol. There are several UIWebViews in the app and for specific algorithm implemented in NSURLProtocol I need to know which one of the UIWebViews sends the request. My understanding is that object returned by [self client] should be somewhat connected with requesting object. But neither NSURLProtocolClient (that is the protocol implemented by object returned by [self client]) nor underlying object _NSCFURLProtocolBridge have any properties/methods to get the