解决方法 Nginx配置

location  / {
           proxy_pass http://127.0.0.1:8080;
            proxy_set_header Host $host;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_connect_timeout 60;
            proxy_read_timeout 600;
            proxy_send_timeout 600;
            proxy_set_header Origin '';
        }

• nginx官网解决方案 https://www.nginx.com/blog/websocket-nginx/
• git https://github.com/drone/drone/issues/767