Override Content-Type header with proxied requests

[manish-ezest]

Hello Wandenberg,

Thanks for your help. Finally it is working. I included all the mime types
in a file and included inside map directive and used it in the location / {}
directive with proxy hide parameter like you suggested.

--Manish

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,239473,252532#msg-252532