Dragging does not work with mobile Android Chrome

[tuomas2]

Tested demo on 2 platforms: on Android Chrome dragging does not work. On iPad it seems to work fine.

Possibly related: #26

[eiland-asbl]

Does seem to work mobile devices using version 1.7:

 <link rel="stylesheet" href="https://unpkg.com/leaflet@1.7.1/dist/leaflet.css">
 <script src="https://unpkg.com/leaflet@1.7.1/dist/leaflet.js"></script>