How would I handle an error when a client disconnects?

[nitroxplunge]

I have a node.js server that interfaces with a website, and when I close a tab the server crashes due to an "Unhandled 'error' event"

I assume I need to add an error handler after .listen() but I cant figure out how to do it.

I know this is a noob question but I'm still learning about websockets.

conn.on("error", function (code, reason) {
console.log("error msg")
});