http 304

---

---

        #access_log  logs/host.access.log  main;
server{
        listen       8090;
        server_name  localhost;
        location / {
          
            root /var/www/demo/html;
            index  index.html;
        }
       location /backoffice  {
            root /var/www/html;
            index  index.html index.htm;
           if ($request_filename ~  .*.(js|css|htm|html)$)
                 {
                   expires      70d;
                 }
        }