Selectively force original subdomain for individual pages on network sites using mapped domains

I'm using the Domain Mapping plugin on a multisite network where each site has its own unique mapped domain. The network has a wildcard SSL certificate.

Is there a way to force individual pages on network subsites (not the main site) to use the original subdomain so the network wildcard SSL certificate can be used? For example, on pages with a checkout or order form.

Thanks!