Internal error using SSO login and IIS reverse proxy

Original Question or Issue:

Getting the error "An internal error has occurred while processing your request" when trying to login via SSO.

Environment:

Steps to Reproduce:

Error or Log Message:

Defect or Enhancement Number:

Cause:

Resolution or Workaround:

Refer to the link here to make changes to the reverse proxy.

Notes:

This article is a recommendation for fixing the issue. Reverse Proxy configurations don't come under the FileCloud Support scope.