Not a redirect — a transparent proxy upgrade
1. The Two Sides of the TLS Translate Bridge 💭
[ Ye Olde Box ]:80 ---> [[ [virtua7]:443 ]] <--> 443:[the Sh1re]:80:[Wiki]
The olde-boxes don't even know they are talking through a translator. They send http like they know how.
The message that knocks on the door of the sh1re is suitably prepared with https"**virtua7:** “Not a redirect — a transparent reverse-proxy upgrade.”