45 lines
2.3 KiB
Markdown
45 lines
2.3 KiB
Markdown
# Root-cause: "file-chooser storm" during the PR1 live smoke
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**Verdict: dev/automation-only artifact. NOT a user-facing bug, NOT caused by PR1, no code fix warranted.**
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## Symptom
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During the PR1 Playwright smoke, navigating a **freshly-started** Vite dev server
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(`localhost:8081/?skipOnboarding=true`) surfaced 5+ pending "file chooser" modal
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states on load, blocking screenshots until each was cancelled
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(`fileChooser.setFiles(undefined)`). 13 console errors also appeared.
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## Investigation (systematic-debugging skill)
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**Phase 1 — static analysis (exhaustive):**
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- Enumerated every `<input type="file">` in `apps/web/src`: `BackupApp` (×2),
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`SettingsApp`, `ChatApp`, `FilesApp`/`FileActions`, `ImportStep`, `HarvestTab`.
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**All are hidden and clicked only via an explicit user-button `onClick`.** None
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mount on `/home`.
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- Enumerated every `.click()` call in `apps/web/src`: all are either `<a download>`
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anchor exports (fire a `download` event, not a file chooser) or the user-bound
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file-input clicks above. **No `useEffect`/mount-time file-chooser trigger exists.**
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- `?skipOnboarding=true` bypass only writes `{completed:true, tier:'power'}` to
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localStorage — no file interaction.
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**Phase 3 — reproduction (decisive):**
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- Re-ran the same URL against the **steady-state** Vite (`:8080`, deps already
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optimized): landed cleanly on `/home` with **no file-chooser modal state and no
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error flood**.
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- DOM inspection on `/home`: **`input[type=file]` count = 0**, `activeElement = BODY`.
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## Root cause
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The artifact is tied to Vite's **first-run dependency re-optimization** on a cold dev
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server, which forces a mid-render full-page reload while Playwright is driving the
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page. Under that transient + automation, Playwright surfaced phantom file-chooser
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pending-operations. It does not occur on a warm dev server, in the production build,
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or in the Tauri desktop binary — and there is no application code path that opens a
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file dialog without a user gesture (which real browsers block anyway).
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The 13 console errors were a separate smoke-setup artifact: the `:8081` frontend
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calling the founder's `:8080`/`:3333` sidecar with a mismatched session (cross-instance auth).
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## Action
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None on the product. For future smokes: warm the dev server (let dep optimization
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finish) before driving Playwright, or smoke the production build / an already-running
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dev server.
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