Hi Maxim, thanks a lot for your moduel. it was extremely useful for me.

I have the following config:
location /upload {
auth_request /auth;
...
location /auth {
proxy_pass <authserviceURL>;
}

The initial request to /upload has header. I have supposed this header to be propogated down to <authserviceURL>. But this does not happen.

Question: does it mean that i have to use $request_uri instead of header propogation?

Thanks a lot!
Oleksiy