When calling ui.closePanel, this will fire "panel:closed", which
is listened by uMap to blindly call map.invalidateSize, which
creates trouble in the dashboard preview: when pressing twice ESC
key (eg. when switching from a preview to another), the map would pan once
to the north east (I guess because invalidateSize is called while
the map is not displayed, but not sure).
uMap lets you create maps with OpenStreetMap layers in a minute and embed them in your site.
Because we think that the more OSM will be used, the more OSM will be improved.
Built on top of Django and Leaflet.