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fix: handle session not found errors without crashing the renderer#32085

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SisyphusZheng wants to merge 2 commits into
anomalyco:devfrom
SisyphusZheng:fix/session-not-found-crash
Open

fix: handle session not found errors without crashing the renderer#32085
SisyphusZheng wants to merge 2 commits into
anomalyco:devfrom
SisyphusZheng:fix/session-not-found-crash

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@SisyphusZheng

@SisyphusZheng SisyphusZheng commented Jun 12, 2026

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Issue for this PR

Closes #25131

Type of change

  • Bug fix
  • New feature
  • Refactor / code improvement
  • Documentation

What does this PR do?

When Desktop restores or syncs a session ID that no longer exists on the active server, the SDK throws a 404 because the client is configured with throwOnError: true.

directory-sync.ts already handled 404s for untracked sessions, but it re-threw the same 404 for tracked sessions. That made a missing active/restored session bubble through the sync pipeline as an unhandled rejection and crash the renderer.

This PR changes the two session sync catch handlers to swallow NotFoundError/404 responses for tracked sessions too. A deleted or stale session should no longer crash the renderer while the surrounding sync state catches up.

How did you verify your code works?

Checked the affected sync path locally and confirmed the PR diff only changes the two isNotFound(error) handlers in packages/app/src/context/directory-sync.ts.

Screenshots / recordings

Not applicable. This is an error handling change.

Checklist

  • I have tested my changes locally
  • I have not included unrelated changes in this PR

When a session is deleted server-side while a user is viewing it,
the throwOnError client config causes 404 errors to be thrown by the
SDK. The catch handlers in directory-sync.ts were re-throwing these
for tracked sessions (the ones the user is actively viewing), which
propagated as unhandled promise rejections through the sync pipeline
and crashed the renderer.

Now 404 errors are always swallowed regardless of tracking state.
@github-actions github-actions Bot added the needs:compliance This means the issue will auto-close after 2 hours. label Jun 12, 2026
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Thanks for your contribution!

This PR doesn't have a linked issue. All PRs must reference an existing issue.

Please:

  1. Open an issue describing the bug/feature (if one doesn't exist)
  2. Add Fixes #<number> or Closes #<number> to this PR description

See CONTRIBUTING.md for details.

@github-actions github-actions Bot added needs:issue and removed needs:issue needs:compliance This means the issue will auto-close after 2 hours. labels Jun 12, 2026
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Thanks for updating your PR! It now meets our contributing guidelines. 👍

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Desktop: switching servers can restore stale session IDs and crash with "Session not found"

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