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hugocasa
24750e6ef1
* fix(raw-apps): prevent and surface the silent blank screen from an unmounted #root
An `index.tsx` written as a bare `export default function App() {...}` with
no mount call builds and runs without throwing: the preview executes the
bundle against an empty `<div id="root">` and auto-renders nothing, so the
JSX never runs, nothing reaches the console or the runtime-error overlay,
and the app is blank with no diagnostic.
Prevent it: the raw-app system prompt and the in-chat app prompt now state
that `index.tsx` is the mount entrypoint, show the mount shim for React,
Svelte and Vue, and call out that a bare component fails silently.
Surface it: when a build still mounts nothing, the preview harness posts
`emptyRender` and the editor shows an error overlay naming the missing
call. The harness reports only when nothing is on screen AND the app never
looked `#root` up, so an app that mounted but paints nothing yet (a fetch
in flight, an unresolved Suspense) is never flagged; `renderAppeared`
withdraws the overlay if a deferred mount lands late.
The handlers stay dormant until the builder tarball that emits these
messages is pinned via `ui_builder_artifact.json`.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* chore(raw-apps): pin the UI builder artifact that emits emptyRender
Activates the "Nothing was mounted" overlay: the pinned tarball predates
the harness change, so the host handlers were dormant until now.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* chore: drop a screenshot accidentally committed at the repo root
Not referenced anywhere; the PR's screenshots are hosted externally.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* fix(raw-apps): make the unmounted-app guidance framework-aware
The detector fires for every raw-app framework, but the overlay and the
prompts named React's `index.tsx` and `createRoot` unconditionally. Svelte
and Vue apps mount from `index.ts` via `mount` / `createApp`, so the
guidance pointed at a nonexistent entrypoint and an unavailable API.
Derive the entrypoint and mount call from the app's files, keyed off file
extensions rather than the template filenames, which users rename.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>