location / {
proxy_pass http://inter-router;
proxy_set_header Host ***;
proxy_http_version 1.1;
}
location ^~ /websocket/ {
proxy_pass http://inter-router/websocket/;
proxy_set_header Host ***;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_read_timeout 600s;
}

不要把websocket 配置放到通配符里面，那样就全部都是了，只对websocket部分，这样用，示例如上