Invalid WebSocket close code when terminating client connection to Miniflare

[TimTinkers]

I am on a Windows PC using Miniflare 2.0.0-next.3.

I am testing a Worker which passes a WebSocket connection off to a Durable Object which in turn passes the connection off to a second Durable Object. When I terminate the connection to this second Durable Object, I receive this error and Miniflare crashes:

TypeError: Invalid WebSocket close code.
    at EventTarget.close (file:///C:/Users/tim/AppData/Local/Volta/tools/image/packages/miniflare/node_modules/miniflare/node_modules/@miniflare/web-sockets/src/websocket.ts:110:29)
    at WebSocket.<anonymous> (file:///C:/Users/tim/AppData/Local/Volta/tools/image/packages/miniflare/node_modules/miniflare/node_modules/@miniflare/web-sockets/src/couple.ts:35:30)
    at WebSocket.emit (node:events:402:35)
    at WebSocket.emitClose (C:\Users\tim\AppData\Local\Volta\tools\image\packages\miniflare\node_modules\miniflare\node_modules\ws\lib\websocket.js:247:10)
    at Receiver.receiverOnFinish (C:\Users\tim\AppData\Local\Volta\tools\image\packages\miniflare\node_modules\miniflare\node_modules\ws\lib\websocket.js:1011:20)
    at Receiver.emit (node:events:390:28)
    at finish (node:internal/streams/writable:750:10)
    at processTicksAndRejections (node:internal/process/task_queues:83:21)

I am terminating the connection to that second Durable Object by ^C forcibly killing my local client process.

[mrbbot]

Hey! 👋 miniflare@2.0.0-rc.1 has just been released, including a fix for this. You can find the changelog here. Thanks for reporting this, and please let me know if you have any other issues.