Leaflet (License), SoundManager 2 (License), Dragdealer (License), Animated progress icon by Icons8
Chrome is ending support for classic web apps and thus this app will stop working by June 2021 (on Chrome OS by June 2022). We strongly suggest you switch to our Chrome extension instead, that provides the very same functionality and will continue to work.
You can switch following these steps:
1. Install our Chrome extension from the Chrome Web Store
2. Remove our old Chrome web app: In a new tab, open "chrome://apps", right-click the app, select Remove from Chrome, and confirm