Adding custom HTTP headers to nginx X-Accel-Redirect

Question

I am serving restricted downloads in rails using X-Accel-Redirect with nginx. To validate my downloads in client app, i am trying to send the checksum in the no

Answer 1

Use add_header Content-MD5 $upstream_http_content_md5;

Since X-Accel-Redirect causes internal redirect nginx will not send returned headers, but it will keep them in $upstream_http_... variables. So you could use them.