title: Get custom protocol response
body: <p>I was learning about custom protocols for few days, and there's one thing that I don't understand.
  I know how to start an app with custom protocol, but My question is, <br>
  <strong>Is it possible to get apps response and print it in Web Browser using javascript?</strong><br>
  For example If I will send request to protocol <strong>myapp://</strong> , that will open an app written in C#, and that app will return string "This is response" can to print it in Web Browser?<br>
  If so, can you help me to accomplish it?
  <br>
  Thanks in advance.</p>