SSL Multisite Issue with Domain Mapping PLugin

If I have a Multisite installed which doesn't have SSL installed, then having mapped a Sub-Site with the WPMUDEV Domain Mapping to a Domain that has SSL installed. domain is root install

I am getting the i notification because of all the media URLs uploads now belonging to the root multisite installed.

Can this be resolved by getting the main domain under SSL or will those URLs still have http attached to them?

This is the one I am trying to fix.

Please Help