I am trying hide the reponse header "Server:Microsoft-IIS/8.5" it only appear when i get answer 5xx or 4xx.
In normal flow the tag is hidden.
I did try follow the links:
https://forums.iis.net/t/1230211.aspx EnableVersionHeader="false" or
https://www.admin-enclave.com/en/articles/skypeforbusiness/285-sfb-windows-os-hardening-disable-the-x-aspnet-version-header.html
using urlRewrite "https://blogs.msdn.microsoft.com/varunm/2013/04/23/remove-unwanted-http-response-headers/"
Any suggestion what's could be?