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TCP does not need the upgrade event, handshake etc. TCP is not limited by the WebSocket spec. TCP requires no additional server-side infrastructure.
by jorangreef 15y ago
TCP does not need the upgrade event, handshake etc. TCP is not limited by the WebSocket spec. TCP requires no additional server-side infrastructure.
- franksalim 15y agoLast thing first: TCP requires a listening server. WebSocket requires a listening server. There is not inherently more infrastructure required. The handshake and HTTP upgrade are there for a reason. Connecting out from web applications with straight TCP breaks the web security model. After the handshake, you can treat WebSocket binary frames as if they were a TCP byte stream. Speak any protocol you want to. Anything you can do with TCP you can do with WebSocket. The only exception is that you cannot connect to a listening server that does not expect the WebSocket handshake. That is intentional! In fact, that is the reason for the WebSocket handshake.