The following code now fails likely due to this backend server changed to https. What other adjustments need to be made so this works?

Classic ASP page fails due to https

Error:

HTTP Error 403.4 - Forbidden

The page you are trying to access is secured with Secure Sockets Layer (SSL).

The requesting page and the url destination are in the same directory.
Server.MapPath yields the same error 

<%
dim data
Set httpRequest = Server.CreateObject("MSXML2.ServerXMLHTTP")
httpRequest.Open "POST", "https://servername/filename.asp", False
httpRequest.setRequestHeader "Content-Type", "application/x-www-form-urlencoded"

data = "runner=runstring"

httpRequest.send(data)
postResponse = httpRequest.responseText

response.write postResponse
%>

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