Ref T9360, forces https if we say the blog is https.
Fake an https, get redirected.
I'd expect this to need a $full_uri->getProtocol() here somewhere, the bare $full_uri should never be "https".
I knew I was going to be busted on that test plan. Haha. FWIW I got stumped by the parent Domain bug and never went back to this after fixing.
I can kick the tires locally before I accept, I have it sort-of-configured locally.
Cool, this works properly in my only-sort-of-fake local environment: