How to make NSJSONSerialization return json without escaping "/"?

Question

iPhone

I use AFNetworking to communicate with the server via json. The standard system NSJSONSerialization is involved there.
When serializing strings containing "/" characters, such as @"26/09/2014 13:56", it escapes them and turns them into @"26\/09\/2014 13:56".
I can never win.
I looked at stackoverflow - I did not understand how people get around this trouble.

Answer 1

This is not a bug. This is the Json standard.

Answer 2

How can I bypass this screening?
I do not want to climb into the insides of afnetworking.