I've been working with the "AAL - Native Application to REST service - Authentication via User Credentials" sample trying to authenticate against WAAD.
However, when I attempt to authenticate my request is being sent to:
https://accounts.accesscontrol.windows.net:443/adfs/services/trust/13/usernamemixed
Which returns a HTTP status 404: Not Found
What does one have to do to get ACS to authenticate against WAAD using sample above?