TypeError: Cannot perform Construct on a detached ArrayBuffer on worker-chat-demo

[segator]

Hi everyone first time using cloudflare workers and I wanted to start on a local environment where I can debug.
I got an exmaple of cloudflare to evaluate WSS but it crashes, Do i'm doing something wrong or miniflare have a bug?

git clone https://github.com/cloudflare/workers-chat-demo
cd workers-chat-demo
miniflare

if you then open http://localhost:8787/ and refresh page or F5 you got this error.

TypeError: Cannot perform Construct on a detached ArrayBuffer
    at new Uint8Array (<anonymous>)
    at extractBody (/usr/local/lib/node_modules/miniflare/node_modules/undici/lib/fetch/body.js:73:14)
    at new Response (/usr/local/lib/node_modules/miniflare/node_modules/undici/lib/fetch/response.js:166:44)
    at new Response (/usr/local/lib/node_modules/miniflare/node_modules/@miniflare/core/src/standards/http.ts:556:13)
    at xxxxx/workers-chat-demo-master/src/chat.mjs:104:16
    at handleErrors (xxxxxx/workers-chat-demo-master/src/chat.mjs:69:18)
    at Object.fetch (xxxxx/workers-chat-demo-master/src/chat.mjs:96:18)
    at /usr/local/lib/node_modules/miniflare/node_modules/@miniflare/core/src/standards/event.ts:331:19
    at /usr/local/lib/node_modules/miniflare/node_modules/@miniflare/shared/src/event.ts:29:9
    at EventTarget.<anonymous> (/usr/local/lib/node_modules/miniflare/node_modules/@miniflare/shared/src/event.ts:77:9)

[leaysgur]

I've investigated a little and found that import HTML from "chat.html" causes the problem.

This is my repro: https://github.com/leader22/miniflare-import_html-repro

Since chat.html is a completely static file, you can export it as string from chat.html.mjs as a workaround.

By the way, import "foo.html" syntax is Cloudflare Workers specific features...? 🤔

[mrbbot]

Hey! 👋 Thank you both for reporting and investigating this. Will try look into this soon. What versions of Node were you using? I'm surprised tests didn't catch this. 😕

[mrbbot]

Hey! 👋 I've just released version 2.3.0 including a fix for this. You can find the full changelog here.