'FORWARDED', Request::HEADER_X_FORWARDED_FOR => 'X_FORWARDED_FOR', Request::HEADER_X_FORWARDED_HOST => 'X_FORWARDED_HOST', Request::HEADER_X_FORWARDED_PORT => 'X_FORWARDED_PORT', Request::HEADER_X_FORWARDED_PROTO => 'X_FORWARDED_PROTO', ]; }