feat: 修改反向代理默认 Connection 请求头 (#5951)

Refs https://github.com/1Panel-dev/1Panel/issues/5937

cmd/server/nginx_conf/proxy.conf

@@ -5,7 +5,7 @@ location ^~ /test {
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
     proxy_set_header REMOTE-HOST $remote_addr;
     proxy_set_header Upgrade $http_upgrade;
-    proxy_set_header Connection "upgrade";
+    proxy_set_header Connection $http_connection;
     proxy_set_header X-Forwarded-Proto $scheme;
     proxy_http_version 1.1;
 

cmd/server/nginx_conf/website_default.conf

@@ -10,7 +10,7 @@ server {
     proxy_set_header X-Real-IP $remote_addr;
     proxy_http_version 1.1;
     proxy_set_header Upgrade $http_upgrade;
-    proxy_set_header Connection "upgrade";
+    proxy_set_header Connection $http_connection;
 
 
     access_log /www/sites/domain/log/access.log main;