Merge pull request NginxProxyManager#2373 from lakkeri/develop

Possible multiple X-Forwarded-For headers

Author: jc21

docker/rootfs/etc/nginx/conf.d/include/proxy.conf

@@ -2,7 +2,7 @@ add_header       X-Served-By $host;
 proxy_set_header Host $host;
 proxy_set_header X-Forwarded-Scheme $scheme;
 proxy_set_header X-Forwarded-Proto  $scheme;
-proxy_set_header X-Forwarded-For    $remote_addr;
+proxy_set_header X-Forwarded-For    $proxy_add_x_forwarded_for;
 proxy_set_header X-Real-IP          $remote_addr;
 proxy_pass       $forward_scheme://$server:$port$request_uri;