fix: prevent 404 on code viewer direct URL access

[onmax]

Problem

1. Go to https://npmx.dev/lodash
2. Click code and select a file
3. Reload page

Code viewer 404s on direct URL access: https://npmx.dev/code/lodash/v/4.17.23/_apply.js

Cause

server/routes/[...path].get.ts catch-all intercepts all requests and throws 404 for non .well-known/skills paths.

Fix

Move to middleware pattern - can pass through non-matching requests instead of throwing.

• server/routes/[...path].get.ts (104 lines) → server/middleware/well-known-skills.ts (55 lines)

[vercel]

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Project	Deployment	Actions	Updated (UTC)
npmx.dev	Ready	Preview, Comment	Feb 1, 2026 11:02am

2 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
docs.npmx.dev	Ignored	Preview	Feb 1, 2026 11:02am
npmx-lunaria	Ignored		Feb 1, 2026 11:02am

[danielroe]

hm... this is problematic as it probably interferes with caching 🤔

could we instead do the parsing, and then redirect somewhere else, to an endpoint that can be cached?

[danielroe]

merging as a hotfix, but we should revisit

[onmax]

For explicit ISR config, we could add:

'/:pkg/.well-known/skills/**': { isr: 3600 },
'/:scope/:pkg/.well-known/skills/**': { isr: 3600 },