soap_server_cowboy_2 fails to work with {reason,undef}

[SserwangaV]

I am trying to access the soap exposed functions through the ibrowse client on a soap_server using cowboy_v2 but getting an error (see error.txt) but when I use the mochiweb as the server I get no problem. What could be the cause of the error when it comes to cowboy_v2?