This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
Post
Simon Willison
simonwillison.net
did:plc:kft6lu4trxowqmter2b6vg6z
https://caniuse.com/mdn-http_headers_origin looks pretty safe
2025-10-15T05:46:45.520Z