Prioritize .onion hosts in AltSvc?
We now support AltSvc and Mahrud suggested we might want to prioritize .onion AltSvc hosts in Tor Browser. It's an interesting idea and I would need to think about it more to know if it's desirable. Mahrud also pointed out a web page that demonstrates AltSvc over .onion:
Refresh several times and it will turn green when .onion is being used.