code: function(status) {
          // see: https://prototype.lighthouseapp.com/projects/8886/tickets/129-ie-mangles-http-response-status-code-204-to-1223
          status = status == 1223 ? 204 : status;
  
          var success = (status >= 200 && status < 300) || status == 304,
              isException = false;
  
          if (!success) {
              switch (status) {
                  case 12002:
                  case 12029:
                  case 12030:
                  case 12031:
                  case 12152:
                  case 13030:
                      isException = true;
                      break;
              }
          }
          return {
              success: success,
              isException: isException
          };
      }
docs: Checks if the response status was successful
  @param {Number} status The status code
  @return {Object} An object containing success/status state