Simon Willison’s Weblog

18th December 2021

None

TIL Safely outputting JSON — Carelessly including the output of `json.dumps()` in an HTML page can lead to an XSS hole, thanks to the following:

Posted 18th December 2021 at 1:06 am

Recent articles

Some thoughts on the Navier–Stokes Millennium Prize Problem - 8th September 2026
The Pelican comparison grid for Astra is pretty interesting - 4th September 2026
OpenAI's rogue agents were caught communicating via public wikis - 4th September 2026

This is a beat by Simon Willison, posted on 18th December 2021.

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