Remote Debugging: Interpreting JS, remotely!

gistfile1.js

var request = require('request');
var WebSocketClient = require('websocket').client;

request('http://localhost:9000/json', function (err, response, body) {
	// Read in the body contents as JSON
	var response = JSON.parse(body);
	// for some reason the following doesn't include the host name!
	var ws_uri = response[0]['webSocketDebuggerUrl'];
	// so we have to fix it...
	var ws_uri = [ws_uri.slice(0,5), 'localhost:9000', ws_uri.slice(5, ws_uri.length)].join('')

	var socket = new WebSocketClient();
	socket.connect(ws_uri);
	socket.on('connect', function (connection) {
		console.log('connected');

		// onMessage handler for the socket connection
		connection.on('message', function (message) {
			console.log(message);
		});

		// Error handler for the socket connection
		connection.on('error', function () {
			console.log(error);
		});

		// Send a 'test' message
		function sendTestPackage () {
			// This message should make the remote interpreter perform an alert
			var json_pkg = {
				"id": 1,
				"method": "Runtime.evaluate",
				"params": {
					"expression": "alert('omg');",
				},
			};

			var json_string = JSON.stringify(json_pkg);
			connection.sendUTF(json_string);
		};

		// Actually send the 'test' message
		sendTestPackage();
	});
});