Development on node-websocket-server (websocket-server) ceased three years ago. Since then, the specification for websockets has changed dramatically. If you need this package, you can clone it from Github: http://github.com/miksago/node-websocket-server; That said, I highly recommend you look at alternatives, such as the 'ws' package

A WebSocket Server for node.js, 90-100% spec compatible.

npm install websocket-server
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