Simon Willison’s Weblog

12th October 2021 - Link Blog

How to win at CORS (via) Jake Archibald’s definitive guide to CORS, including a handy CORS playground interactive tool. Also includes a useful history explaining why we need CORS in the first place.

Posted 12th October 2021 at 2:07 pm

Recent articles

The last six months in LLMs in five minutes - 19th May 2026
Notes on the xAI/Anthropic data center deal - 7th May 2026
Live blog: Code w/ Claude 2026 - 6th May 2026

This is a link post by Simon Willison, posted on 12th October 2021.

javascript 755 security 604 jake-archibald 6 cors 27

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe