NGINX reverse proxy conf for wordpress

location /foo/ {
                proxy_pass https://site.com/;
                proxy_redirect off;
                proxy_set_header Host site.com;
                proxy_ssl_session_reuse off;
                proxy_ssl_server_name on;
                proxy_set_header X-Real-IP  $remote_addr;
                proxy_set_header X-Forwarded-For $remote_addr;
                proxy_set_header Accept-Encoding "";
                sub_filter "https://site.com" "https://reflected.to/foo";
                sub_filter_once off;
        }