Auf Stackoverflow fand ich gerade einen ähnlichen
Fall.
Aus der
Antwort von Remy Lebeau:
Zitat:
You need to enable the hoInProcessAuth flag in the TIdHTTP.HTTPOptions property. It is disabled by default. Without that flag, TIdHTTP.Get() will not send a second HTTP request specifying the Digest credentials in reply to the server's 401 response. It will simply exit and expect you to
handle the 401 response and send a new request yourself as needed.