On playing with an ADAL library unit test (from the source) that has the library talk ws-trust RST/RSTR to my IDP, having discovered thatsupport170@rapmlsqa.com UPN is a AAD "Federated" account, the library FAILS to talk, as is first required, to the mex endpoint of the IDP. The IDP, and its endpoints including /issuer.svc/mex PASS the formal compliance test - effect by the office365 remote connectivity analyzer. the IDP and its mex and ws-trust endpoints works fine with clients like lync and outlook, or proxies in microsoftonline site that also issue ws-trust RSTs.
Is there an "ADAL" Profile of what the mex endpoint must do, to interwork with the library?