==> debugvars <==
# https://nginx.org/en/docs/varindex.html

#$arg_
#$cookie_
#$http_
#$jwt_claim_
#$jwt_header_
#$proxy_protocol_tlv_
#$sent_http_
#$sent_trailer_
#$upstream_cookie_
#$upstream_http_
#$upstream_trailer_

add_header X-Debug "ancient_browser=$ancient_browser" always;
add_header X-Debug "args=$args" always;
add_header X-Debug "binary_remote_addr=$binary_remote_addr" always;
add_header X-Debug "body_bytes_sent=$body_bytes_sent" always;
#add_header X-Debug "bytes_received=$bytes_received" always;
add_header X-Debug "bytes_sent=$bytes_sent" always;
add_header X-Debug "connection=$connection" always;
add_header X-Debug "connection_requests=$connection_requests" always;
add_header X-Debug "connection_time=$connection_time" always;
add_header X-Debug "connections_active=$connections_active" always;
add_header X-Debug "connections_reading=$connections_reading" always;
add_header X-Debug "connections_waiting=$connections_waiting" always;
add_header X-Debug "connections_writing=$connections_writing" always;
add_header X-Debug "content_length=$content_length" always;
add_header X-Debug "content_type=$content_type" always;
add_header X-Debug "date_gmt=$date_gmt" always;
add_header X-Debug "date_local=$date_local" always;
add_header X-Debug "document_root=$document_root" always;
add_header X-Debug "document_uri=$document_uri" always;
add_header X-Debug "fastcgi_path_info=$fastcgi_path_info" always;
add_header X-Debug "fastcgi_script_name=$fastcgi_script_name" always;
add_header X-Debug "geoip_area_code=$geoip_area_code" always;
add_header X-Debug "geoip_city=$geoip_city" always;
add_header X-Debug "geoip_city_continent_code=$geoip_city_continent_code" always;
add_header X-Debug "geoip_city_country_code=$geoip_city_country_code" always;
add_header X-Debug "geoip_city_country_code3=$geoip_city_country_code3" always;
add_header X-Debug "geoip_city_country_name=$geoip_city_country_name" always;
add_header X-Debug "geoip_country_code=$geoip_country_code" always;
add_header X-Debug "geoip_country_code3=$geoip_country_code3" always;
add_header X-Debug "geoip_country_name=$geoip_country_name" always;
add_header X-Debug "geoip_dma_code=$geoip_dma_code" always;
add_header X-Debug "geoip_latitude=$geoip_latitude" always;
add_header X-Debug "geoip_longitude=$geoip_longitude" always;
add_header X-Debug "geoip_org=$geoip_org" always;
add_header X-Debug "geoip_postal_code=$geoip_postal_code" always;
add_header X-Debug "geoip_region=$geoip_region" always;
add_header X-Debug "geoip_region_name=$geoip_region_name" always;
add_header X-Debug "gzip_ratio=$gzip_ratio" always;
add_header X-Debug "host=$host" always;
add_header X-Debug "hostname=$hostname" always;
add_header X-Debug "http2=$http2" always;
add_header X-Debug "https=$https" always;
add_header X-Debug "invalid_referer=$invalid_referer" always;
add_header X-Debug "is_args=$is_args" always;
#add_header X-Debug "jwt_payload=$jwt_payload" always;
add_header X-Debug "limit_conn_status=$limit_conn_status" always;
add_header X-Debug "limit_rate=$limit_rate" always;
add_header X-Debug "limit_req_status=$limit_req_status" always;
#add_header X-Debug "memcached_key=$memcached_key" always;
add_header X-Debug "modern_browser=$modern_browser" always;
add_header X-Debug "msec=$msec" always;
add_header X-Debug "msie=$msie" always;
add_header X-Debug "nginx_version=$nginx_version" always;
add_header X-Debug "pid=$pid" always;
add_header X-Debug "pipe=$pipe" always;
#add_header X-Debug "protocol=$protocol" always;
add_header X-Debug "proxy_add_x_forwarded_for=$proxy_add_x_forwarded_for" always;
add_header X-Debug "proxy_host=$proxy_host" always;
add_header X-Debug "proxy_port=$proxy_port" always;
add_header X-Debug "proxy_protocol_addr=$proxy_protocol_addr" always;
add_header X-Debug "proxy_protocol_port=$proxy_protocol_port" always;
add_header X-Debug "proxy_protocol_server_addr=$proxy_protocol_server_addr" always;
add_header X-Debug "proxy_protocol_server_port=$proxy_protocol_server_port" always;
#add_header X-Debug "proxy_protocol_tlv_aws_vpce_id=$proxy_protocol_tlv_aws_vpce_id" always;
#add_header X-Debug "proxy_protocol_tlv_azure_pel_id=$proxy_protocol_tlv_azure_pel_id" always;
#add_header X-Debug "proxy_protocol_tlv_gcp_conn_id=$proxy_protocol_tlv_gcp_conn_id" always;
add_header X-Debug "query_string=$query_string" always;
add_header X-Debug "realip_remote_addr=$realip_remote_addr" always;
add_header X-Debug "realip_remote_port=$realip_remote_port" always;
add_header X-Debug "realpath_root=$realpath_root" always;
add_header X-Debug "remote_addr=$remote_addr" always;
add_header X-Debug "remote_port=$remote_port" always;
add_header X-Debug "remote_user=$remote_user" always;
add_header X-Debug "request=$request" always;
add_header X-Debug "request_body=$request_body" always;
add_header X-Debug "request_body_file=$request_body_file" always;
add_header X-Debug "request_completion=$request_completion" always;
add_header X-Debug "request_filename=$request_filename" always;
add_header X-Debug "request_id=$request_id" always;
add_header X-Debug "request_length=$request_length" always;
add_header X-Debug "request_method=$request_method" always;
add_header X-Debug "request_time=$request_time" always;
add_header X-Debug "request_uri=$request_uri" always;
add_header X-Debug "scheme=$scheme" always;
add_header X-Debug "secure_link=$secure_link" always;
add_header X-Debug "secure_link_expires=$secure_link_expires" always;
add_header X-Debug "server_addr=$server_addr" always;
add_header X-Debug "server_name=$server_name" always;
add_header X-Debug "server_port=$server_port" always;
add_header X-Debug "server_protocol=$server_protocol" always;
#add_header X-Debug "session_log_binary_id=$session_log_binary_id" always;
#add_header X-Debug "session_log_id=$session_log_id" always;
#add_header X-Debug "session_time=$session_time" always;
add_header X-Debug "slice_range=$slice_range" always;
#add_header X-Debug "spdy=$spdy" always;
#add_header X-Debug "spdy_request_priority=$spdy_request_priority" always;
add_header X-Debug "ssl_alpn_protocol=$ssl_alpn_protocol" always;
add_header X-Debug "ssl_cipher=$ssl_cipher" always;
add_header X-Debug "ssl_ciphers=$ssl_ciphers" always;
add_header X-Debug "ssl_client_cert=$ssl_client_cert" always;
add_header X-Debug "ssl_client_escaped_cert=$ssl_client_escaped_cert" always;
add_header X-Debug "ssl_client_fingerprint=$ssl_client_fingerprint" always;
add_header X-Debug "ssl_client_i_dn=$ssl_client_i_dn" always;
add_header X-Debug "ssl_client_i_dn_legacy=$ssl_client_i_dn_legacy" always;
add_header X-Debug "ssl_client_raw_cert=$ssl_client_raw_cert" always;
add_header X-Debug "ssl_client_s_dn=$ssl_client_s_dn" always;
add_header X-Debug "ssl_client_s_dn_legacy=$ssl_client_s_dn_legacy" always;
add_header X-Debug "ssl_client_serial=$ssl_client_serial" always;
add_header X-Debug "ssl_client_v_end=$ssl_client_v_end" always;
add_header X-Debug "ssl_client_v_remain=$ssl_client_v_remain" always;
add_header X-Debug "ssl_client_v_start=$ssl_client_v_start" always;
add_header X-Debug "ssl_client_verify=$ssl_client_verify" always;
add_header X-Debug "ssl_curve=$ssl_curve" always;
add_header X-Debug "ssl_curves=$ssl_curves" always;
add_header X-Debug "ssl_early_data=$ssl_early_data" always;
#add_header X-Debug "ssl_preread_alpn_protocols=$ssl_preread_alpn_protocols" always;
#add_header X-Debug "ssl_preread_protocol=$ssl_preread_protocol" always;
#add_header X-Debug "ssl_preread_server_name=$ssl_preread_server_name" always;
add_header X-Debug "ssl_protocol=$ssl_protocol" always;
add_header X-Debug "ssl_server_name=$ssl_server_name" always;
add_header X-Debug "ssl_session_id=$ssl_session_id" always;
add_header X-Debug "ssl_session_reused=$ssl_session_reused" always;
add_header X-Debug "status=$status" always;
add_header X-Debug "tcpinfo_rcv_space=$tcpinfo_rcv_space" always;
add_header X-Debug "tcpinfo_rtt=$tcpinfo_rtt" always;
add_header X-Debug "tcpinfo_rttvar=$tcpinfo_rttvar" always;
add_header X-Debug "tcpinfo_snd_cwnd=$tcpinfo_snd_cwnd" always;
add_header X-Debug "time_iso8601=$time_iso8601" always;
add_header X-Debug "time_local=$time_local" always;
add_header X-Debug "uid_got=$uid_got" always;
add_header X-Debug "uid_reset=$uid_reset" always;
add_header X-Debug "uid_set=$uid_set" always;
add_header X-Debug "upstream_addr=$upstream_addr" always;
add_header X-Debug "upstream_bytes_received=$upstream_bytes_received" always;
add_header X-Debug "upstream_bytes_sent=$upstream_bytes_sent" always;
add_header X-Debug "upstream_cache_status=$upstream_cache_status" always;
add_header X-Debug "upstream_connect_time=$upstream_connect_time" always;
#add_header X-Debug "upstream_first_byte_time=$upstream_first_byte_time" always;
add_header X-Debug "upstream_header_time=$upstream_header_time" always;
#add_header X-Debug "upstream_queue_time=$upstream_queue_time" always;
add_header X-Debug "upstream_response_length=$upstream_response_length" always;
add_header X-Debug "upstream_response_time=$upstream_response_time" always;
#add_header X-Debug "upstream_session_time=$upstream_session_time" always;
add_header X-Debug "upstream_status=$upstream_status" always;
add_header X-Debug "uri=$uri" always;