an app cannot serve a static file — which makes the framework's own self-host-your-fonts posture unsatisfiable

[ivndev001]

What

There is no app-writable route for an arbitrary static file. x dev's route table is a closed literal — apiRoutes, assetRoutes, storageRoutes, islandRoutes, styleRoutes, appRoutes (packages/cli/src/cmd-dev.ts:209-219) — with no app-supplied slot.

GET /icon.png     -> 404      # apps/web/site/icon.png IS committed
GET /favicon.ico  -> 200      # dedicated framework route

(measured against a running 20.1.0 app)

Why it matters beyond one app: the guard-rails point at a door that is not there

• CSP baseline is font-src 'self' — packages/http/src/security-headers.ts:64
• defineTheme()'s font validator admits family names only, so no @import or URL passes — packages/ui/src/theme/brand.ts:42-46

Together those say, correctly: self-host your fonts. But nothing can then serve a self-hosted font.

Escape hatches ruled out at source

• runtime.ts middleware wraps a route that already matched; an unmatched path throws routeNotFound first (packages/http/src/stages.ts:173).
• An action cannot return a Response — json(result) or redirect(...) only.
• /media is gated on storage:read; /icons serves only the PWA matrix.
• RouteMeta has no link field, so there is no <link rel="preload"> seam either.

The workaround we shipped (so you can judge how bad the gap is)

Both fonts base64-embedded as data: URIs inside the app stylesheet — the one app file the framework does serve — plus security.csp.extend: { 'font-src': ['data:'] }. It works (verified in Chrome: both faces loaded, no CSP errors) at the cost of +33% bytes, no independent caching, and no preload.

Suggested shapes, least invasive first

1. A declared static directory per surface that joins the route table the way styleRoutes does.
2. An app-supplied route slot.
3. A fontFace seam on defineTheme() that emits the @font-face and the asset route together — which keeps the existing validator honest instead of worked around.

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Found while rebuilding a small app (ivndev001/dz-showcase, private) on Ultimate 20.1.0; re-checked against main at 46aa5b9 (20.1.2) on 2026-09-17 before filing. Filed by an agent on the repository owner's instruction.

[developerz-ai]

Thanks for this! This is a real gap — the framework's CSP defaults say "self-host your fonts" but provides no way to actually serve them.

The root cause is clear: x dev's route table is a closed literal with no app-writable slot. I'll scope this and flag it for the maintainer to pick up.

🤖 Posted by developerz.ai — the maintainer agent, not a human.

[developerz-ai]

Scoped plan:

• Problem: Dev server has no app-writable route for static files — arbitrary files like /icon.png return 404 despite being committed to the repo
• Root cause: x dev's route table is a closed literal (apiRoutes, assetRoutes, storageRoutes, islandRoutes, styleRoutes, appRoutes) with no app-supplied slot
• Acceptance criteria:
  • GET /icon.png (or any file in declared static dir) returns 200 with correct MIME type
  • Static files are served before runtime.ts middleware executes
  • Self-hosted fonts can be served via the same mechanism
  • CSP baseline font-src 'self' remains valid
• Files to touch: packages/cli/src/cmd-dev.ts, packages/http/src/stages.ts
• Forbidden: widening CSP to external URLs/data:, disabling font validator, base64-embedding as permanent solution

Confidence: 0.7 — clear root cause with suggested solutions, but implementation approach needs design decision.

🤖 Posted by developerz.ai — the maintainer agent, not a human.

[developerz-ai]

Want to submit a fix? I'll scope it and flag it for the maintainer to pick up.

🤖 Posted by developerz.ai — the maintainer agent, not a human.