title: Angular 2: automatic logon using Active Directory user
body: <p>I'm developing an Angular 2 application, and one of the requirements is that the user should log in automatically (without specifying a username and password). The user should be logged on with his Windows user.</p>
  
  <p>Is this possible? I know I can use Windows authentication in my Web API but I suppose there is no way of knowing the user's credentials without him specifying them manually?</p>