# nginx defaults to proxying with HTTP/1.0. Websocket upgrade requires 1.1, so
# keep that here instead of in the generic forwarded.conf snippet.
proxy_http_version	1.1;
proxy_set_header	Upgrade	$http_upgrade;

# Use the mapped value from http/websocket-map.conf so non-upgrade requests can
# still close cleanly instead of always advertising "Connection: upgrade".
proxy_set_header	Connection	$connection_upgrade;