I have a problem, I can't figure out how to solve it.
I have a Sharepoint with windows authentication. Inside the Sharepoint are several webparts, that should consume a rest api (.net core, not Sharepoint api) by javascript ajax calls. At the rest api, the user should get authenticated with the same user name as in Sharepoint. Simply enabling windows authentication and setting xhrFields.withCredentials seams not to work. The user gets authenticated in the rest api, but if I switch the user in Sharepoint, the user in the rest api doesn't change.
Thanks in advance for any help.