Cloudflare requires accept() to be called before sending messages on socket

[aboodman]

... but miniflare doesn't.

[aboodman]

Sorry I didn't catch the exact error, something like:

You must call accept() on a socket before sending messages on it`

Adding an accept() call on the server side right after constructing WebSocketPair fixed the issue on prod.

[mrbbot]

Hey! 👋 Thanks for pointing this out, I'll fix it in the next version.

[mrbbot]

Hey! 👋 The first pre-release of Miniflare 2 has just been released, including this change. You can find the full changelog here and install it with npm i miniflare@next -D. Please let me know if you have any other issues, and feel free to ask questions in the #miniflare channel of the Cloudflare Workers Discord server.