MsOffice use anonymous OPTIONS and HEAD requests. OPTIONS always returns MethodNotAllowed(405). HEAD (hopefully) returns a valid response. See https://support.microsoft.com/en-us/kb/2019105 for details.
MsOffice use anonymous OPTIONS and HEAD requests. OPTIONS always returns MethodNotAllowed(405). HEAD (hopefully) returns a valid response. See https://support.microsoft.com/en-us/kb/2019105 for details.