Simon Willison’s Weblog

XSS Protection by Default in Rails 3.0. Fantastic news—congratulations, Rails core team.

Posted 8th October 2009 at 4:35 pm

Recent articles

First impressions of Claude Cowork, Anthropic's general agent - 12th January 2026
My answers to the questions I posed about porting open source code with LLMs - 11th January 2026
Fly's new Sprites.dev addresses both developer sandboxes and API sandboxes at the same time - 9th January 2026

rails 74 ruby 72 security 572 xss 60

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