What is the http 401-not authorized error in server?
If you receive a 401- Not Authorized error, you may have configured Tableau Server to use Active Directory with SSPI (see Enable automatic login). If your web server uses SSPI, you do not need to set up trusted authentication. You can embed views and your users will have access to them as long as they are licensed Tableau server users and members of your Active Directory.
If you see a 401 error (or a 302 – Redirect error) after you have deployed Tableau Server 10.3, then it’s likely the trusted ticket code you have written to construct the URL for the client has not been updated to account for the two-part ticket URL format.