The first configuration must be defined as an http parameter, and second one must be defined as a server parameter. For proxy_pass parameter, web link must be defined.
1 map $http_upgrade $connection_upgrade {
default upgrade;
'' close;
}
2 location /chathub {
proxy_pass http://webchat.abc123.com;
proxy_pass_header Set-Cookie;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $connection_upgrade;
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Keywords: LB, Load Balancer, NginX, WebSocket, WebChat
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