解决 nginx “proxy_pass” cannot have URI part in location given by regular expression, or inside named location

“proxy_pass” cannot have URI part in location given by regular expression, or inside named location, or inside “if” statement, or inside “limit_except” block in /etc/nginx/conf.d/default.conf:35

 location ~/level.+{
                proxy_pass http://127.0.0.1:12000/ #注意这个反斜杠
                ;proxy_set_header Host $host;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }

去掉后

 location ~/level.+{
                proxy_pass http://127.0.0.1:12000 #去掉了
                ;proxy_set_header Host $host;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }