# datasette-leaflet 0.3 — retained record

> Retained news record from news:feed-3733c65b9abe07b4.

Canonical: https://highsignal.app/data/records/fa8131c534dea153

[← sources](https://highsignal.app/data)


source: [news](https://highsignal.app/data/news) (news:feed-3733c65b9abe07b4)  published 2026-11-13 22:30 ingested 2026-11-14 03:05

[original source ↗](https://simonwillison.net/2026/Nov/13/datasette-leaflet/)

## retained text



```
13th November 2026
OpenStreetMap have a very reasonable policy that hits to their hosted tile server should send a referrer header. Datasette table pages used the Referrer-Policy: no-referrer HTTP header, causing plugins that loaded tiles from OpenStreetMap to violate that policy.
datasette-leaflet is the plugin that loads a bundled Leaflet so other Datasette plugins can depend on it. It now sets the referrer policy on the tile requests themselves to strict-origin-when-cross-origin, passing the host but not the full path to the page.
Recent articles
- Locating the source of a mysterious beep with Claude - 9th November 2026
- Hide your slop PR descriptions behind <details><summary> - 9th November 2026
- Qwen 3.8 27B on my laptop can interpret model weights, too - 3rd November 2026
- The U.S. Census Bureau and “Super Intelligence” - 2nd November 2026
```



document fetched 2026-11-14 03:05 · canonical https://simonwillison.net/2026/Nov/13/datasette-leaflet