old_contents: var _global = (function() { return this; })();
  var NativeWebSocket = _global.WebSocket || _global.MozWebSocket;
  var websocket_version = require('./version');
  
  
  /**
   * Expose a W3C WebSocket class with just one or two arguments.
   */
  function W3CWebSocket(uri, protocols) {
  	var native_instance;
  
  	if (protocols) {
  		native_instance = new NativeWebSocket(uri, protocols);
  	}
  	else {
  		native_instance = new NativeWebSocket(uri);
  	}
  
  	/**
  	 * 'native_instance' is an instance of nativeWebSocket (the browser's WebSocket
  	 * class). Since it is an Object it will be returned as it is when creating an
  	 * instance of W3CWebSocket via 'new W3CWebSocket()'.
  	 *
  	 * ECMAScript 5: http://bclary.com/2004/11/07/#a-13.2.2
  	 */
  	return native_instance;
  }
  if (NativeWebSocket) {
  	['CONNECTING', 'OPEN', 'CLOSING', 'CLOSED'].forEach(function(prop) {
  		Object.defineProperty(W3CWebSocket, prop, {
  			get: function() { return NativeWebSocket[prop]; }
  		});
  	});
  }
  
  /**
   * Module exports.
   */
  module.exports = {
      'w3cwebsocket' : NativeWebSocket ? W3CWebSocket : null,
      'version'      : websocket_version
  };
  
new_contents: var _global = (function () {
  	if (!this && typeof global !== 'undefined') {
  		return global;
  	}
  	return this;
  })();
  var NativeWebSocket = _global.WebSocket || _global.MozWebSocket;
  var websocket_version = require('./version');
  
  
  /**
   * Expose a W3C WebSocket class with just one or two arguments.
   */
  function W3CWebSocket(uri, protocols) {
  	var native_instance;
  
  	if (protocols) {
  		native_instance = new NativeWebSocket(uri, protocols);
  	}
  	else {
  		native_instance = new NativeWebSocket(uri);
  	}
  
  	/**
  	 * 'native_instance' is an instance of nativeWebSocket (the browser's WebSocket
  	 * class). Since it is an Object it will be returned as it is when creating an
  	 * instance of W3CWebSocket via 'new W3CWebSocket()'.
  	 *
  	 * ECMAScript 5: http://bclary.com/2004/11/07/#a-13.2.2
  	 */
  	return native_instance;
  }
  if (NativeWebSocket) {
  	['CONNECTING', 'OPEN', 'CLOSING', 'CLOSED'].forEach(function(prop) {
  		Object.defineProperty(W3CWebSocket, prop, {
  			get: function() { return NativeWebSocket[prop]; }
  		});
  	});
  }
  
  /**
   * Module exports.
   */
  module.exports = {
      'w3cwebsocket' : NativeWebSocket ? W3CWebSocket : null,
      'version'      : websocket_version
  };
  
subject: Fix Webpack global scope issue