(node:56052) [DEP0040] DeprecationWarning: The punycode module is deprecated. Please use a userland alternative instead.

[timsuchanek]

Describe the bug

When using fetch, I get this warning from the latest Node.js (v21.2.0):

(node:56052) [DEP0040] DeprecationWarning: The `punycode` module is deprecated. Please use a userland alternative instead.

To Reproduce Steps to reproduce the behavior:
Just use the latest version of @whatwg-node/fetch with Node v21.2.0.
I get it with this simple script:

import { fetch } from '@whatwg-node/fetch'

fetch('https://www.npmjs.com/package/@whatwg-node/fetch')
  .then((res) => res.text())
  .then((x) => console.log(x.slice(0, 100)))

Expected behavior
Not getting this warning

Environment:

• OS: MacOS 14.1.1
• @whatwg-node/fetch: 0.9.14
• NodeJS: v21.2.0

Additional context
If you fix this, other libraries like OpenAI could benefit from this, as they have the same issue coming from node-fetch:
openai/openai-node#527

[ardatan]

Hmm not sure how they benefit from this because node-fetch is not in this repo and it is not maintained by us -> This is their repo https://github.com/node-fetch/node-fetch

We don't use punycode directly in @whatwg-node/fetch and probably it comes from a dependency we have.

[Urigo]

@timsuchanek are you sure this is the only thing you've done to get this error?
can you share a repo we could run?