TanStack / TanStack/tanstack.com

Bug: `vite start` silently serves broken dev server

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Dominant language
TypeScript
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Forks
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Merged PRs (30d)
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Description

Running vite start (as opposed to vite preview) after vite build starts a Vite dev server that returns 404 for all routes with no error or warning. Since start is not a recognized Vite CLI subcommand (Vite CLI docs), Vite silently falls back to the default dev command - but without proper TanStack Start SSR integration, every request gets a 404 with an empty body.

Steps to Reproduce

  1. Run pnpm build && pnpm start
  2. Open http://localhost:5173/ - get a 404

Workaround

Change the script to "start": "vite preview".

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by checking the package script that runs with pnpm start, then compare its behavior with the documented Vite CLI commands. Reproduce with pnpm build && pnpm start; done means the start command uses the appropriate preview behavior and the root route no longer returns an empty 404 response.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
build-system
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Quiet
Clarity
Clearly specified
Newbie friendliness
68/100

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