Incercepting XHR & WebSockets

ws.js

var proto = WebSocket.prototype;
var send = proto.send;
Object.defineProperty(proto, 'send', {
  'writable': false,
  'value': function (data) {
    console.log(data);
    return send.apply(this, arguments);
  }
});

xhr.js

var proto = XMLHttpRequest.prototype;
var open = proto.open;
Object.defineProperty(proto, 'open', {
  'writable': false,
  'value': function (method, url) {
    console.log(url);
    return open.apply(this, arguments);
  }
});