square/retrofit — pull request #116 by thorinside (2012-12-10 21:39:02+00:00)
Title: Avoid sending multiple Content-Type headers.

I found a situation where multiple Content-Type headers were resulting in a JSON body not being correctly parsed on a node.js/Express server. This code change ensures that only one Content-Type header will be present in a request.

Ultimately this may not be the best way to accomplish such a thing. Perhaps overwriting the current Content-Type header would be better... as in removing the old and adding the new.