What is the rule expression, please?
What is the rule expression, please?

chat.satos.hi

equals, then enter the subdomain in the Value box
100::100::NEET lowercase
chat.satos.hiequalsNEET Cannot perform I/O on behalf of a different request. I/O objects (such as streams, request/response bodies, and others) created in the context of one request handler cannot be accessed from a different request's handler. This is a limitation of Cloudflare Workers which allows us to improve overall performance.