Remove Cookies from headers

[nfn]

Hello,

Is there a way to remove cookies sent from the backend?
In varnish we have "unset req.http.cookie" (when receiving the request
before sending to the backend) or "unset beresp.http.set-cookie" (when
sending the response from the backend to the client) to manipulate
cookies.

I'm not using cache .. just want to remove cookies before the response
is sent to the client.

Do we have any similar option to do this?

Thanks

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,170179,170179#msg-170179