On spdy-dev they considered adding SNI to the spec as a requirement but didn't: https://groups.google.com/forum/?fromgroups#!topic/spdy-dev/KQoAEzhuTAE https:/

On spdy-dev they considered adding SNI to the spec as a requirement but didn't: https://groups.google.com/forum/?fromgroups#!topic/spdy-dev/KQoAEzhuTAE https://groups.google.com/forum/?fromgroups#!topic/spdy-dev/... (At this point implementing SPDY without SNI would be kind of absurd, but it would be spec-conforming.)