Companion plugin bundling Leaflet assets and tile request configuration for Datasette.
The long-running Datasette plugin datasette-cluster-map shipped version 0.19, adding compatibility with Datasette 1.0a42 and depending on the new datasette-leaflet to send a referrer header for OpenStreetMap tile requests. The author also demos a faceted map of PG&E power plants, highlighting Datasette's recently redesigned facets.
The datasette-leaflet plugin for Datasette released version 0.3, changing tile requests' Referrer-Policy from no-referrer to strict-origin-when-cross-origin to comply with OpenStreetMap's referrer requirements for its hosted tile servers. The change passes only the host, not the full page path, and is a small compatibility fix.