How to have nginx forward the HTTP_X_FORWARDED_PROTO header?

Solution 1:

I figured out how to solve this. The problem was that nginx was overwriting the header set by haproxy on this line of my config:

proxy_set_header X-Forwarded-Proto $scheme;

I fixed it by adding in this:

map $http_x_forwarded_proto $thescheme {
     default $scheme;
     https https;
 }   

and changing the proxy_set_header line to use the new scheme:

proxy_set_header X-Forwarded-Proto $thescheme;

Solution 2:

I had the same need with AWS ELB

Here is my solving line:

proxy_set_header        X-Forwarded-Proto $http_x_forwarded_proto;