HTTPS not working for Multiple Domain Mapping on Single Site

I am trying to move my site to https (using Really Simple SSL) and the second domain that I am mapping with the Multiple Domain Mapping plug-in is generating a Privacy Error page.

I have a separate certificate installed for the second domain.

The second domain is set up as an alias of the main domain.

I have tried both a single https:// mapping as well as multiple mappings (https:// and https:// in that order) and neither way worked.

Hope you can help!

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