In Node 21.x and later, using this library produces a deprecation warning because of your use of "punycode", via the node-fetch library.

Since you list Node 18.x as the oldest supported version of this library, you shouldn't be using node-fetch at all. Native fetch was added in 18.x.

Please remove the node-fetch dependency from this library and use fetch() directly instead.

In the meantime, users affected by this issue can add an override to their package.json as a workaround:

"overrides": {
  "whatwg-url": "^14.0.0"
}