server {
        listen      80;

        server_name  WEB_URL;
        location /{
           return 302 /clbs/;
        }

        location /clbs/ {
            proxy_pass http://WEB_URL;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            proxy_set_header Host $host;
        }

        location ~ .*\.(html|js|css|png|gif|jpg)$ {
        proxy_cache cache_one;
        proxy_cache_valid 200 304 24h;
        proxy_cache_valid any 10m;
        expires 24h;
        if ( !-e $request_filename) {
        proxy_pass http://WEB_URL;

        }
        }

        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
    }