Custom choropleth border opacity - missing hover-over

[vgoklani]

Hey there - I noticed that when changing the Choropleth to this:

 viz = ChoroplethViz('precincts.geojson', 
                     access_token=token,
                     color_stops=[],
                     line_stroke='-',
                     line_color='white',
                     line_width=1,
                     opacity=0,
                     line_opacity=1,
                     center=(-82.9988, 39.9612),
                     zoom=9.5,
                     style='mapbox://styles/mapbox/dark-v9?optimize=true',
                     height='900px')
 viz.show()

that the hover-overs disappeared! I would still like a way to show the data contained in the GeoJSON via the hoverovers, is that possible? I just don't need to add any coloring :) Thanks!