message: Strict mode forbids implicit creation of global property
diff: @@ -13,7 +13,7 @@ if (system.args.length !== 2) {
  var port = system.args[1];
  -service = server.listen(port, function (request, response) {
  +var service = server.listen(port, function (request, response) {
  console.log('Request received at ' + new Date());
  response.statusCode = 200;
  