https://mailarchive.ietf.org/arch/msg/hybi/JltM1qeiVn0FAyixC4e-6A8vkEI/
[hybi] name symtax, was: WebSocket sub protocol name.
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hybinamewebsocketsubprotocol
https://go.googlesource.com/net/+/45432b5e4f38b46a5abcbb1311593790829ec53f/websocket/hybi_test.go
websocket/hybi_test.go - net - Git at Google
websockethybitestgogit