title: Access azure app service with ip address not the hostname
body: <p>I've got a app plan (BASIC SMALL) with a private (hopefully) ip adress that can be found under Settings > Custom Domains. 
  When I try to access the content of the app using just the ip, it doesn't work. The site says "Error 404 - Web app not found." The hostname works just fine. When I ping the hostname it gives me the same ip adress. What do I have to do in order to be able to access it just using the ip?</p>