code: function(response) {
        delete self._requestState[transactionId];
        if (typeof callback === 'function') {
          // negative response
          if (response.error) {
            var owner = response.answerRecords[0].nb.entries[0].address;
            callback(null, false, owner);
  
          // positive response
          } else {
            // ignore as this should not happen for 'broadcast' nodes
          }
        }
      }
docs: In broadcast mode if we get a response then that means someone is disputing our claim to this name.