Hacktoberfest 2026: le issue che i maintainer hanno segnato per ottobre, aperte e adatte ai principianti. Sfoglia le issue Hacktoberfest

lazy() moduleUrl with a leading slash never resolves: dev emits `//src/…`, the build manifest lookup misses

Aperta
  • Qualcosa non va?
#390 0 commenti 0 reazioni 0 assegnatari Vedi su GitHub

I maintainer di solito rispondono entro 1 giorno

Nessuno ha ancora preso questa issue.

Valutazione

Difficoltà
4/5
Tempo stimato
3-5 giorni
Idoneità per principianti
55/100
Tipo di issue
Bug
Chiarezza
Abbastanza chiara
Stato di attività
Attiva
Stack tecnologico
typescript, vite
Ambito
build-system, tooling

Direzione di ricerca

Start with devModuleUrl in src/dev-manifest.ts and the mirrored moduleUrl() in the generated devManifestCode in src/index.ts, then inspect manifest[moduleUrl] in packages/web/src/server.ts. Run the solid-v2/fullstack reproduction in the linked issue for both dev and production builds. Done means a leading-slash moduleUrl resolves consistently in both modes, or is rejected with a clear format error.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Descrizione

Summary

A lazy() call whose hand-written moduleUrl has a leading slash ("/src/Page.tsx") never resolves. The plugin's key format is project-relative (src/Page.tsx), and nothing normalizes the slash:

  • Dev: the generated URL becomes protocol-relative (//src/Page.tsx). The preload fetches http://src/Page.tsx and fails, and hydrate() falls back to a client render.
  • Build: the client manifest has no /src/Page.tsx key. The server logs Asset manifest returned no client assets for module "/src/Page.tsx" and ships no root module map. On the client, hydration throws lazy() module "/src/Page.tsx" … was not preloaded before hydration, and reactivity halts.

This was split out of solidjs/solid#3338, where it reproduced the reporter's "page looks hydrated but every signal is dead" symptom.

Reproduction

From the reproduction on solidjs/solid#3338: the solid-v2/fullstack template (solid-js / @solidjs/web 2.0.0-rc.6, @solidjs/router 2.0.0-next.21, @solidjs/vite-plugin 3.0.0-next.39), with the <Loading> removed and a route component declared as:

const Page = lazy(() => import("./Page"), undefined, "/src/Page.tsx");
  • Production build: the server logs Asset manifest returned no client assets for module "/src/Page.tsx". The client throws lazy() module "/src/Page.tsx" (hydration id "…") was not preloaded before hydration from the router outlet. Reactivity halts (REACTIVITY_HALTED).
  • Dev: the root module map is serialized as //src/Page.tsx. The preload requests http://src/Page.tsx, fails, and the fallback client render dies with an unhandled Hydration Mismatch … key: undefined.

The same key without the slash ("src/Page.tsx") hydrates and stays reactive in both modes. See also the first diagnosis comment.

Expected behavior

A leading / on a moduleUrl key names the same module as the project-relative key. Either:

  • it's normalized (/src/Page.tsx → src/Page.tsx) before the dev URL is built and before the build-manifest lookup, so both modes resolve the module; or
  • if a leading slash is meant to be invalid, it's rejected with a clear error naming the expected project-relative format, not a silent miss.
Where it likely lives

A hand-written third argument bypasses the compiler's lazy() pass (transformLazy only rewrites one- and two-argument calls). So the user's string reaches the resolvers as-is.

  • Dev: devModuleUrl in src/dev-manifest.ts and its mirror moduleUrl() in the generated devManifestCode in src/index.ts. Both build base + "/" + key, which gives //src/Page.tsx for a slash-prefixed key. The comment on devManifestCode says to keep the two in sync.
  • Build: the virtual:solid-manifest load hook in src/index.ts exports the raw Vite manifest (via stampClientEntry). The key lookup itself is manifest[moduleUrl] in @solidjs/web's resolveAssets (packages/web/src/server.ts in solidjs/solid). The production half could be fixed on either side: the plugin normalizing keys in what it exports, or the runtime normalizing before lookup. That's worth deciding before a fix, so dev and build agree.

Related but distinct: #263 (Windows separators in generated keys), #298 (dev base and root-external keys), and #299 (query strings). None of them cover a leading slash on a hand-written key.

Filed on behalf of @ryansolid. — Claude via Cursor

Lingua principale
TypeScript
Stelle
522
Fork
72
Merge medio
20h 1m
PR unite (30g)
31

Preparare l'ambiente

Come iniziare

  1. Leggi tutta la issue e poi la guida ai contributi del progetto.
  2. Commenta sulla issue per dire che te ne occupi tu — evita che due persone facciano lo stesso lavoro.
  3. Fai un fork del repository e lavora su un branch.
  4. Apri una pull request che faccia riferimento al numero della issue.

Altre issue di solidjs/solid-vite-plugin

Tutte le issue di solidjs/solid-vite-plugin

Issue simili

Altre issue su TypeScript

Ricevi le nuove issue nella tua casella

Un breve riepilogo di issue GitHub adatte ai principianti.