code: function(name) {
      var idx, length, regexp,
        header = this.headers[Utils.headerize(name)],
        result = [];
  
      if (header) {
        length = header.length;
        for (idx = 0; idx < length; idx++) {
          result.push(header[idx]);
        }
        return result;
      } else {
        length = this.extraHeaders.length;
        regexp = new RegExp('^\\s*'+ name +'\\s*:','i');
        for (idx=0; idx<length; idx++) {
          header = this.extraHeaders[idx];
          if (regexp.test(header)) {
            result.push(header.substring(header.indexOf(':')+1).trim());
          }
        }
        return result;
      }
    }
docs: Get the header/s of the given name.
  -param {String} name header name
  -returns {Array} Array with all the headers of the specified name.