did you manage to solve the problem?
I have the same
When making ADFS OIDC web api call we receive MSIS9604 error - Win 2016 Standard Server
When making ADFS OIDC web api call we receive MSIS9604 error - Win 2016 Standard Server 10.0.14393 Build 14393 we get following error:
MSIS9604: An error occurred. The authorization server was not able to fulfill the request.
GET https://domain/?error=server_error&error_description=MSIS9604%3a+An+error+occurred.+The+authorization+server+was+not+able+to+fulfill+the+request.&state=12345&client-request-id=7b4671cc-e938-4acf-d113-00800000007e HTTP/1.1
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Илья Опушнев 6 Reputation points
2021-07-20T12:32:03.7+00:00 -
Alexander Demko 1 Reputation point
2022-01-27T14:04:18.327+00:00 In my case the problem was in CORS settings. Resolved by:
Set-AdfsResponseHeaders -EnableCORS $true
Set-AdfsResponseHeaders -CORSTrustedOrigins http... (Redirect URI, specified in ADFS Native Application Properties)