Dependency links with version union ("1.0 || 2.0") resolves to 404 page

[alex-key]

Links on dependenices with version union (defined with OR operator like 1.0 || 2.0 || 3.0) lead to 404 page.

Example page: https://npmx.dev/package/@ngxi/unjs (see "Peer Dependency" section on the right). Clicking on version lands on https://npmx.dev/package/@angular/core/v/%5E18.0.0%20%7C%7C%20%5E19.0.0%20%7C%7C%20%5E20.0.0

---

UPDATED

@danielroe clarified that app now should handle complex version ok (it was implemented in #103).

Actual problem is versions has spaces, which should be removed in the URL
1 || 2 => 1||2 => https://npmx.dev/package/nitro/v/1%7C%7C2

NOTE! It seems like Range version with hyphen is not supported: 1-2 => Error 404

Example: https://npmx.dev/package/vite/v/%5E7%7C%7C%5E8%7C%7C%3E=8.0.0-0 works just fine

[alex-key]

I will work on the fix

[serhalp]

💭 I actually just had an idea for an alternative, simpler solution with a better UX (potentially), that also happens to unlock a simple solution to #1416. I'm working on a PR 👀.

[alex-key]

@serhalp Hi Philippe. Do you think you will able to merge #1723 before tomorrow? Otherwise, maybe it worth to merge this as a hotfix and later it could be overwritten by your feature. Thanks!

[alex-key]

#1874 resolves just part of the issues. But there are still multiple cases which results in error 404.

The app is relying on a third-party service (by @antfu) which is resolving complex semver expressions into a single max version.
See app/composables/npm/useResolvedVersion.ts

But it is not handling many valid cases, which results in 404 on npmx. Examples:

Union version works with ||

https://npm.antfu.dev/nuxt@2%7C%7C%3C4

{"name":"nuxt","specifier":"2||<4","version":"3.21.1","publishedAt":"2026-02-07T16:36:10.454Z","lastSynced":1772535242667}

But fails with valid Range version (w/o ||)

https://npm.antfu.dev/nuxt@%3E2%3C4

{
  "error": true,
  "url": "https://npm.antfu.dev/nuxt@%3E2%3C4",
  "statusCode": 400,
  "statusMessage": "Server Error",
  "message": "Invalid tag name \">2<4\" of package \"nuxt@>2<4\": Tags may not have any characters that encodeURIComponent encodes."
}

Range version with hyphen does not work
https://npm.antfu.dev/internmap@1-2

{
  "error": true,
  "url": "https://npm.antfu.dev/internmap@1-2",
  "statusCode": 400,
  "statusMessage": "Server Error",
  "message": "Cannot read properties of undefined (reading 'time')"
}

Taken from: https://npmx.dev/package/d3-array

[alex-key]

@antfu Is this a valid issue in https://github.com/antfu/fast-npm-meta ? Or am I missing something?