I worked with ISC support on this today and we framed this out as a possible solution.

• I need to obtain or relocate an existing website name to my cloud server which is hosting my cache databases
• The company who handles our website DNS translations will need to point this website to that cache server
• Once the website is in place, the available SSL certificate which is included with my server lease will be applied to that website
• Under IIS, the Handler Mappings will be edited and/or added to accept .cls requests and map them to CSPms Handler
• the url string will include the https://websitename/csp/namespace/cache.cls as an example or whatever the string works out to be.
• No redirection should be involved.

Hopefully this works