# datasette-cluster-map 0.19

> Source: <https://www.snipvote.com/story/cmwhig0bf0008m5afaf648spw>
> Published: 2026-11-15 07:53:42.292640+00:00

[Simon Willison](https://simonwillison.net/2026/Nov/13/datasette-cluster-map/)

### datasette-cluster-map 0.19

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Datasette plugins now depend on datasette-leaflet to include a referrer header when requesting OpenStreetMap tiles, ensuring compliance with tile provider requirements. This change enables Datasette users to continue using plugins like datasette-cluster-map with supported tile providers. It breaks existing setups that don't update to datasette-leaflet.

datasette-cluster-map 0.19 adds compatibility with Datasette 1.0a42 and now routes Leaflet/OpenStreetMap usage through datasette-leaflet so tile requests include a referrer header. If you ship Datasette plugins or geospatial table views, this reduces breakage on the 1.0 alpha path and makes OSM-backed cluster maps safer to deploy without custom tile-handling glue.