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0 pointsblibble3y ago0 comments

normally uses GET and the Upgrade header, not CONNECT

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That’s for HTTP/1.1, where WebSockets are really a completely different protocol which “hijacks” the underlying TCP or TCP+TLS stream from HTTP via the Upgrade request.

HTTP/2 has its own concept of streams, so WebSockets can run over a single HTTP/2 stream, and the linked RFC describes extending the CONNECT method to take over a single stream.

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sveiss3y ago

That’s for HTTP/1.1, where WebSockets are really a completely different protocol which “hijacks” the underlying TCP or TCP+TLS stream from HTTP via the Upgrade request.

HTTP/2 has its own concept of streams, so WebSockets can run over a single HTTP/2 stream, and the linked RFC describes extending the CONNECT method to take over a single stream.

j / k navigate · click thread line to collapse