code: function(location) {
          var info = null;
          var tileInfo = this.getTileData(location);
          if (tileInfo && tileInfo.tile) {
              info = tileInfo.tile.getFeatureInfo(tileInfo.i, tileInfo.j);
          }
          return info;
      }
docs: APIProperty: getFeatureInfo
  Get details about a feature associated with a map location.  The object
  returned will have id and data properties.  If the given location
  doesn't correspond to a feature, null will be returned.
  
  Parameters:
  location - {<OpenLayers.LonLat>} map location
  
  Returns:
  {Object} Object representing the feature id and UTFGrid data
  corresponding to the given map location.  Returns null if the given
  location doesn't hit a feature.