title: How to disable NTLM authentication for OPTIONS requests in IIS
body: <p>As far as I understand, OPTIONS request must be processed without authentication. I am hosting my web application in IIS 7.x and 8.x and it is using NTLM and Kerberos authentication (this is an intranet application). </p>
  
  <p>How do I disable authentication for OPTIONS request in IIS in case of Windows authentication?</p>