datasette-leaflet 0.3

Simon Willison2026-11-14 06:300 views

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.

Tags: leaflet, datasette, openstreetmap

Source：https://simonwillison.net/2026/Nov/13/datasette-leaflet/

My favorites

PreviousArcticRAT Cybercrime Gang Profiles Victim Finances With AI NextHydropower study reveals energy potential in Appalachia

Add a living pixel-art koi to your GitHub profile README (in 5 minutes)

Your GitHub profile README can do more than list tech badges. With git-koi you get a small pixel-art koi that is redrawn

0dev.to GitHub

LED Panel 120x30: Die elegante Lösung für schmale Räume und moderne Architektur

Manchmal ist weniger mehr – zumindest bei der Breite. Das LED Panel 120x30 cm beweist, dass schlanke Leuchten nicht nur

0dev.to Design

Structuring Research and Academic Writing: The Dual-App Architecture of Prism AI

Structuring Research and Academic Writing: The Dual-App Architecture of Prism AI When building a desktop workspace for t

0dev.to Design

Setting Up a New MacBook for AI Coding in 2026: The 12 Apps I'd Install First

A fresh MacBook is the best and worst day of the year. Everything is fast, and nothing works the way your hands expect.

0dev.to Productivity

3420. Count Non-Decreasing Subarrays After K Operations

3420. Count Non-Decreasing Subarrays After K Operations Difficulty: Hard Topics: Principal , Array , Stack , Segment Tre

0dev.to PHP

The usual explanation for 50 Ω and 75 Ω coax: three optima, using electrostatic FEM and formulas

50 Ω and 75 Ω are common coaxial-cable impedances. The usual explanation is that there is no single best impedance. For

0dev.to Beginners