Windows authentication not implemented with OpenIddict

What version of Origam are you using: 2026.9

I was trying to enable windows authentication in IIS.

I was expecting to be able to authenitcate using windows password

Instead I’ve got:
HTTP 401
No error in the log file

Request:
GET

(https://srvterm2.leco.local:62939/External/Challenge?provider=Windows&returnUrl=/connect/authorize?client_id=origamWebClient&redirect_uri=https%3A%2... (trimmed)
  • already contains NTLM header Authorization with NTLM data in it
    image

Response: