The initial screen comes from the browser cache, seeing it does not mean you have reached the server. Look at the server logs, if you reach the server, the access log will have entries like
Code:
127.0.0.1 port-40310 - 07/Jan/2018:18:03:31 +0530 "GET /calibre.appcache HTTP/1.1" 200 676
127.0.0.1 port-40310 - 07/Jan/2018:18:03:31 +0530 "GET /icon/tags.png HTTP/1.1" 200 2726
127.0.0.1 port-40314 - 07/Jan/2018:18:03:31 +0530 "GET /icon/user_profile.png HTTP/1.1" 200 1539