Animated Polylines in Leaflet

I've been waiting for this Leaflet plug-in for a while. Leaflet.Polyline.SnakeAnim animates a polyline on a Leaflet map so that you can show an animated route on your map.

The GitHub page for the plug-in includes an animate GIF of Leaflet.Polyline.SnakeAnim in action but doesn't include a working example. I've therefore created a quick demo map. In my demo I've changed one main thing from the demo.html on the GitHub page. I've moved

map.addLayer(path);

inside the animation function so that the route polyline doesn't appear on the map before it starts animating. To animate the route on the map just press the button.