code: function makeRequest(title, cacheHitExpected, next) {
    var start = Date.now();
  
    request({
      url: 'http://localhost:1337/'
    }, function(err, data, body) {
      var time = Date.now() - start;
  
      console.log(title);
      console.log('  status:', data.statusCode);
      console.log('  body  :', body);
      console.log('  time  :', time);
  
      common.verify(function() {
        common.shouldUseCache(cacheHitExpected, time);
      });
  
      console.log();
  
      next();
    });
  }
docs: -- HTTP REQUESTS ------------------------------------------------------------