Pixiv-Nginx/conf/shared-proxy-params-2.conf

proxy_http_version 1.1;
proxy_set_header Host $http_host;
proxy_set_header User-Agent $http_user_agent;
proxy_set_header Accept-Encoding '';
proxy_buffering off;
proxy_ssl_server_name on;
#proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
#proxy_set_header X-Real_IP $remote_addr;