[sentry]

When navigating to an examples index page (e.g., /table/latest/docs/framework/react/examples) without a specific example slug, params._splat is undefined.

Previously, this would cause [framework, params._splat].join('/') to produce a path with a trailing slash (e.g., react/). This malformed path was then rejected by isValidRepoPath during validation, leading to a page crash.

This fix addresses the issue by:

1. In the loader (src/routes/_library/$libraryId/$version.docs.framework.$framework.examples.$.tsx), explicitly checking for an undefined params._splat and throwing notFound() early. This prevents the construction of an invalid repoStartingDirPath and ensures a graceful 404 for index pages.
2. Applying a guard to the examplePath construction in two other locations within the same file (lines 352 and 613) to ensure that if _splat is ever undefined in those contexts, a trailing slash is not inadvertently created. This provides additional robustness.

Fixes TANSTACK-COM-545

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	tanstack-com	61c00a2	Commit Preview URL Branch Preview URL	Sep 23 2026, 11:05 PM

[tannerlinsley]

Closing this in favor of #1197, which merged on October 12 and fixes all three example path constructions by omitting an absent slug. That preserves the examples index instead of returning a 404 for it.

I verified those three fixes are present in the current source, and /table/latest/docs/framework/react/examples returns HTTP 200 today. The useful trailing-slash correction from this proposal is covered by the merged fix; the added notFound() guard would reject that index route.