Hi,
I am using NGINX as a reverse proxy server and working on custom dynamic module for NGINX where I have a need programmatically remove/block custom http header from the upstream request, basically from headers_in.headers list so the server which will receive request from NGINX will not see that header. I did some research and found that assigning 0 to [header]->hash works only to response headers headers_out.headers.

Thank you,
sharaga