Yes, I'm sure: https://en.wikipedia.org/wiki/HTTP/2#Encryption_2 https://en.wikipedia.org/wiki/HTTP/2#Encryption_2 "Working Group finally did not reach consen

Yes, I'm sure: https://en.wikipedia.org/wiki/HTTP/2#Encryption_2 https://en.wikipedia.org/wiki/HTTP/2#Encryption_2 "Working Group finally did not reach consensus over the mandatory encryption,[22] although most client implementations require it, which makes encryption a de facto requirement." You can also test for yourself: when you access any http/2 website using http (assuming it doesn't redirect you to https), you'll see it's using the http/1.1 protocol.