Thanks for the v4 api, the picker isn't displaying any data on android chrome/68.0.3440.91
plus it would be nice to zoom more than 11, not sure if that's intentional or not though I understand that it can put a lot of load on a tile server., If that's the case
perhaps you could add an option to check the hosts tile cache. so fetching a tile would be browser cache -> host cache -> windy. or can I do that via leaflet?