Simon Willison’s Weblog

25th May 2023

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TIL Testing the Access-Control-Max-Age CORS header — Today I noticed that [Datasette](https://datasette.io/) wasn't serving a `Access-Control-Max-Age` header.

Posted 25th May 2023 at 10:54 pm

Recent articles

New release of LLM adds support for reasoning traces, OpenAI Responses, server-side tools, and smarter logging - 4th August 2026
Stateless MCP has recaptured my interest (and inspired mcp-explorer and datasette-mcp) - 31st July 2026
OpenAI’s accidental cyberattack against Hugging Face is science fiction that happened - 22nd July 2026

This is a beat by Simon Willison, posted on 25th May 2023.

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