hooks.mjs imports @latest version of preact for direct (and oldest) versions.

[vyushin]

• Check if updating to the latest Preact version resolves the issue

https://codesandbox.io/s/serverless-resonance-spus5

Describe the bug
Preact hooks script is importing latest version of preact for every version. It makes conflicts for instances.

To Reproduce

https://codesandbox.io/s/serverless-resonance-spus5?file=/index.html

Steps to reproduce the behavior:

1. Open https://codesandbox.io/s/serverless-resonance-spus5?file=/index.html
2. Change import version from latest to direct version (for example 10.5.13)

import { h, render } from "https://unpkg.com/preact@10.5.13?module";
import { useState } from "https://unpkg.com/preact@10.5.13/hooks/dist/hooks.mjs?module";

3. Erorr in console
   

Expected behavior
hooks.mjs shouldn't import latest version of preact for direct (and oldest) version. It should use the version actually requested

Incorrect:

[rschristian]

So that's not actually something done here. preact/hooks doesn't necessarily depend on the latest version of preact. It only lists Preact v^10.0.0 as a peerDep:

preact/hooks/package.json

Lines 20 to 22 in 4e29ec7

	"peerDependencies": {
	"preact": "^10.0.0"
	},

In this situation, it's up to Unpkg to choose how to supply that peer dependency, and I guess it chooses the latest version.

It might be possible to just tie the versions together, i.e., preact/hooks v10.5.13 has a peerDep on preact v10.5.13, but I don't know if that's going to pop up to cause issues somewhere.

[marvinhagemeister]

The problem is that module resolution is broken in unpkg. See:

• ?module currently generates wrong import mjackson/unpkg#281
• Use resolved versions instead of semvers when using ?module mjackson/unpkg#129
• Module resoultion in unpkg doesn't work. (Bug in unpkg) #2564

The issue has open for a long while over at unpkg and it's therefore probably unlikely that they'll fix it. So the only solution is to switch to a CDN that does follow the module spec. The current popular ones are either https://www.skypack.dev/ or https://npm.reversehttp.com/ .