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

The new GPT-5.6 family: Luna, Terra, Sol - 9th July 2026
sqlite-utils 4.0, now with database schema migrations - 7th July 2026
sqlite-utils 4.0rc2, mostly written by Claude Fable (for about $149.25) - 5th July 2026

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

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