Using this.map.on('popupopen', this.onPopupOpen, this); instead of geoJSON layer's on('click', function() {...}) as it's more general and descriptive.
Using this.map.on('popupopen', this.onPopupOpen, this); instead of
geoJSON layer's on('click', function() {...}) as it's more general
and descriptive.

beanangel/beanangel