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fix: write the generated tsconfig to node_modules/$app/tsconfig.json - #16589

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Rich-Harris merged 1 commit into
sveltejs:version-3from
Nic-Polumeyv:fix-app-tsconfig-resolution
Jul 30, 2026
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fix: write the generated tsconfig to node_modules/$app/tsconfig.json#16589
Rich-Harris merged 1 commit into
sveltejs:version-3from
Nic-Polumeyv:fix-app-tsconfig-resolution

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@Nic-Polumeyv

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Neat little find

The cause of the playwright pin is that its tsconfig loader only ever looks up node_modules/$app/tsconfig.json, while tsc also resolves the directory form we currently generate. Writing the file where both look removes the pin's cause and lets paths reach Playwright test files again. Verified against 1.61.1, 1.62.0 and 1.62.1.

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Install the latest version of @sveltejs/kit from 44272b1:

pnpm add https://pkg.svelte.dev/@sveltejs/kit/c/44272b1ee5c46cc719a0b31c1894805289b87abe

Open in pkg.svelte.dev: https://pkg.svelte.dev/repos/kit/pr/16589

Note

This PR is from a fork. A maintainer must approve approve each commit before it can be built and installed.

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changeset-bot Bot commented Jul 30, 2026

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🦋 Changeset detected

Latest commit: 44272b1

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package
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@sveltejs/kit Patch

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@Rich-Harris

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This would introduce a discrepancy between $app/tsconfig and $app/tsconfig/service-worker — it would smooth things over but I feel like we need to lobby for a fix in Playwright itself, and only do this if it seems like that won't happen any time soon

@Nic-Polumeyv

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There shouldn't be a discrepancy since both files are written by node_modules/<id>.json, so the two ids can't diverge.

Funny enough... they looked at exactly this two weeks ago. 1.62.0 made unresolved extends a hard error, it broke monorepos (microsoft/playwright#41989), and they reverted in microsoft/playwright#42005. So yeah, nothing will happen anytime soon. I don't mind opening the upstream issue regardless.

@Rich-Harris

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Ah gotcha — I missed that both generated tsconfigs are affected, I thought we'd be generating this pair:

node_modules/$app/tsconfig.json
node_modules/$app/tsconfig/service-worker/tsconfig.json

It sounds like they're already aware of the gap with tsc, so probably no need to open a fresh issue, though I've asked if it's tracked anywhere that we can subscribe to

@Rich-Harris
Rich-Harris merged commit 38f1528 into sveltejs:version-3 Jul 30, 2026
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@Nic-Polumeyv
Nic-Polumeyv deleted the fix-app-tsconfig-resolution branch July 30, 2026 22:53
Rich-Harris pushed a commit that referenced this pull request Aug 4, 2026
This PR was opened by the [Changesets
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rather than normal releases. If you want to exit prereleases, run
`changeset pre exit` on `version-3`.

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# Releases
## @sveltejs/kit@3.0.0-next.14

### Major Changes

- breaking: refresh all load functions/queries when clicking a link to
the current URL ([#16572](#16572))

- breaking: only include routes with a `+page` or `+server` in `RouteId`
([#16580](#16580))

- breaking: require Node 22.17
([#16597](#16597))

- breaking: `preloadCode` now takes a route ID (e.g. `/blog/[slug]`)
instead of a pathname. Route IDs are not prefixed with `paths.base`
([#16576](#16576))

- breaking: remove deprecated `.run()` method from live queries
([#16573](#16573))

### Minor Changes

- feat: return the list of compressed files from `builder.compress`
([#16566](#16566))

- feat: add `page` and `endpoint` booleans to `$app/manifest`'s
`routes`, and export a `ManifestRoute` type
([#16594](#16594))

- feat: add `PageRouteId` and `EndpointRouteId` to `$app/types`
([#16594](#16594))

### Patch Changes

- fix: generate valid `Path` types for routes with optional or rest
params, several params in one segment, or escape sequences
([#16577](#16577))

- fix: decode all numeric character references, including above `ffff`,
when crawling prerendered pages
([#16611](#16611))

- chore: deduplicate request hashing for serialized fetch responses
([#16499](#16499))

- fix: don't treat `Object.prototype` members as param matchers during
validation ([#16612](#16612))

- fix: exclude routes without a page or endpoint from `routes` in
`$app/manifest`, and remove directories with no route files from
`LayoutParams` ([#16588](#16588))

- chore: reuse base64 and text decoding helpers
([#16608](#16608))

- fix: record the mime types of prerendered paths in the server manifest
([#16564](#16564))

- chore: only generate each route's resolution module once when
prerendering ([#16576](#16576))

- fix: expand `[x+nn]` and `[u+nnnn]` escape sequences when resolving a
route id to a pathname
([#16570](#16570))

- fix: allow routes to contain `[` and `]` via the `[x+5b]` and `[x+5d]`
escapes ([#16569](#16569))

- chore: remove the dead `SSRState.fallback` field and name the server
state fork semantics
([#16598](#16598))

- fix: import resolved peer dependencies as file URLs so
project-relative resolution works on Windows
([#16618](#16618))

- fix: write generated tsconfig to `node_modules/$app/tsconfig.json` so
that tools with simplified tsconfig resolution can find it
([#16589](#16589))

- fix: prerender and crawl pages whose `content-type` header carries a
`charset` parameter
([#16567](#16567))

- fix: stream promised `read` results lazily instead of eagerly
buffering them ([#16622](#16622))

- fix: correctly decode `[u+nnnn]` escape sequences above `ffff`
([#16611](#16611))
## @sveltejs/adapter-auto@8.0.0-next.2

### Patch Changes

- fix: convert resolved adapter path to a file URL before importing, so
builds work on Windows
([#16618](#16618))
- Updated dependencies
[[`c3f58bb`](c3f58bb),
[`b655dc7`](b655dc7),
[`a70cc4f`](a70cc4f),
[`b325afb`](b325afb),
[`e76b3d7`](e76b3d7),
[`58f47eb`](58f47eb),
[`fe9d8d9`](fe9d8d9),
[`0c7bbd7`](0c7bbd7),
[`08d7e2a`](08d7e2a),
[`f70f679`](f70f679),
[`0624b26`](0624b26),
[`0624b26`](0624b26),
[`f4222ad`](f4222ad),
[`089628b`](089628b),
[`d8617b3`](d8617b3),
[`c7369a1`](c7369a1),
[`5e5e592`](5e5e592),
[`60057c1`](60057c1),
[`f70f679`](f70f679),
[`38f1528`](38f1528),
[`40092f3`](40092f3),
[`ff4247e`](ff4247e),
[`79a5de5`](79a5de5),
[`a70cc4f`](a70cc4f)]:
  - @sveltejs/kit@3.0.0-next.14
## @sveltejs/adapter-cloudflare@8.0.0-next.4

### Patch Changes

- fix: avoid caching immutable asset 404s
([#16627](#16627))
- Updated dependencies
[[`c3f58bb`](c3f58bb),
[`b655dc7`](b655dc7),
[`a70cc4f`](a70cc4f),
[`b325afb`](b325afb),
[`e76b3d7`](e76b3d7),
[`58f47eb`](58f47eb),
[`fe9d8d9`](fe9d8d9),
[`0c7bbd7`](0c7bbd7),
[`08d7e2a`](08d7e2a),
[`f70f679`](f70f679),
[`0624b26`](0624b26),
[`0624b26`](0624b26),
[`f4222ad`](f4222ad),
[`089628b`](089628b),
[`d8617b3`](d8617b3),
[`c7369a1`](c7369a1),
[`5e5e592`](5e5e592),
[`60057c1`](60057c1),
[`f70f679`](f70f679),
[`38f1528`](38f1528),
[`40092f3`](40092f3),
[`ff4247e`](ff4247e),
[`79a5de5`](79a5de5),
[`a70cc4f`](a70cc4f)]:
  - @sveltejs/kit@3.0.0-next.14
## @sveltejs/adapter-node@6.0.0-next.7

### Patch Changes

- fix: serve static files with the Content-Type recorded in the manifest
([#16564](#16564))

- fix: don't send `Vary: Accept-Encoding` for assets that were never
precompressed ([#16566](#16566))
- Updated dependencies
[[`c3f58bb`](c3f58bb),
[`b655dc7`](b655dc7),
[`a70cc4f`](a70cc4f),
[`b325afb`](b325afb),
[`e76b3d7`](e76b3d7),
[`58f47eb`](58f47eb),
[`fe9d8d9`](fe9d8d9),
[`0c7bbd7`](0c7bbd7),
[`08d7e2a`](08d7e2a),
[`f70f679`](f70f679),
[`0624b26`](0624b26),
[`0624b26`](0624b26),
[`f4222ad`](f4222ad),
[`089628b`](089628b),
[`d8617b3`](d8617b3),
[`c7369a1`](c7369a1),
[`5e5e592`](5e5e592),
[`60057c1`](60057c1),
[`f70f679`](f70f679),
[`38f1528`](38f1528),
[`40092f3`](40092f3),
[`ff4247e`](ff4247e),
[`79a5de5`](79a5de5),
[`a70cc4f`](a70cc4f)]:
  - @sveltejs/kit@3.0.0-next.14
## @sveltejs/adapter-static@4.0.0-next.3

### Patch Changes

- fix: avoid caching immutable asset 404s when configuring for Vercel
([#16626](#16626))
- Updated dependencies
[[`c3f58bb`](c3f58bb),
[`b655dc7`](b655dc7),
[`a70cc4f`](a70cc4f),
[`b325afb`](b325afb),
[`e76b3d7`](e76b3d7),
[`58f47eb`](58f47eb),
[`fe9d8d9`](fe9d8d9),
[`0c7bbd7`](0c7bbd7),
[`08d7e2a`](08d7e2a),
[`f70f679`](f70f679),
[`0624b26`](0624b26),
[`0624b26`](0624b26),
[`f4222ad`](f4222ad),
[`089628b`](089628b),
[`d8617b3`](d8617b3),
[`c7369a1`](c7369a1),
[`5e5e592`](5e5e592),
[`60057c1`](60057c1),
[`f70f679`](f70f679),
[`38f1528`](38f1528),
[`40092f3`](40092f3),
[`ff4247e`](ff4247e),
[`79a5de5`](79a5de5),
[`a70cc4f`](a70cc4f)]:
  - @sveltejs/kit@3.0.0-next.14
## @sveltejs/enhanced-img@1.0.0-next.3

### Patch Changes

- chore: bump `vite-imagetools` to v11
([#16630](#16630))
## @sveltejs/package@3.0.0-next.4

### Patch Changes

- chore: remove dependency on sade
([#16619](#16619))

- fix: import resolved peer dependencies as file URLs so
project-relative resolution works on Windows
([#16618](#16618))

- fix: emit declarations when the tsconfig lives above the package root
([#16568](#16568))

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
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