The library maybe implements a connection:didSendBodyData:totalBytesWritten:totalBytesExpectedToWrite: method in a category on NSObject . That would be very nasty but that could explain why the method of AFURLConnectionOperation is not called.
A third-party error reporting library was overriding that delegate method on NSURLConnection. Removing the library resolved the issue. (There was no issue with either AFNetworking or NSURLConnection.).
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.