Nginx启用WebSocket支持

1. 报错内容
   

2. nginx.conf

   proxy_http_version 1.1;
   proxy_set_header Upgrade $http_upgrade;
   proxy_set_header Connection "upgrade";
   

   

3. 问题解决
   

4. WebSocket跨域

   add_header 'Access-Control-Allow-Origin' '*';
   add_header 'Access-Control-Allow-Credentials' 'true';