nl_tokens: Override FeatureGroup . getBounds as it doesn t work
pl_tokens: function ( ) { var bounds = new L . LatLngBounds ( ) ; if ( this . _topClusterLevel ) { bounds . extend ( this . _topClusterLevel . _bounds ) ; } for ( var i = this . _needsClustering . <mask> - 1 ; i >= 0 ; i -- ) { bounds . extend ( this . _needsClustering [ i ] . getLatLng ( ) ) ; } bounds . extend ( this . _nonPointGroup . getBounds ( ) ) ; return bounds ; }