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fix: Live query reconnect issues#16022

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elliott-with-the-longest-name-on-github merged 8 commits into
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advisor/002-live-query-reconnect-fixes
Jun 17, 2026
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fix: Live query reconnect issues#16022
elliott-with-the-longest-name-on-github merged 8 commits into
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advisor/002-live-query-reconnect-fixes

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@elliott-with-the-longest-name-on-github elliott-with-the-longest-name-on-github commented Jun 11, 2026

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This fixes a few behaviors I think are undesirable:

  • On a live query reconnect, for await consumers (ones that use its async iterability) won't ever resolve, because we replace the #fan_out instance without closing it. I think the behavior we probably want is to keep the existing fan out around, assuming it's not closed, and just keep sending new values to the loops. The alternative is to close the fan out, in turn closing all of the loops, but since they're not in a reactive context they really have no way of "reconnecting", so the most "reconnect-y" behavior we can implement is to just keep sending new values.
  • There were paths that would fail to settle the reconnect promise, which would cause invalidateAll to never resolve
  • When a query.live is in a valid state and the iterator yields nothing when connecting, we would clobber the existing value with undefined. Now we leave it.

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🦋 Changeset detected

Latest commit: 15683bf

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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@elliott-with-the-longest-name-on-github elliott-with-the-longest-name-on-github marked this pull request as ready for review June 17, 2026 15:51

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makes sense

@elliott-with-the-longest-name-on-github elliott-with-the-longest-name-on-github merged commit d2e108c into main Jun 17, 2026
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@elliott-with-the-longest-name-on-github elliott-with-the-longest-name-on-github deleted the advisor/002-live-query-reconnect-fixes branch June 17, 2026 16:26
@github-actions github-actions Bot mentioned this pull request Jun 17, 2026
Rich-Harris pushed a commit that referenced this pull request Jun 18, 2026
This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and the packages will
be published to npm automatically. If you're not ready to do a release
yet, that's fine, whenever you add more changesets to main, this PR will
be updated.


# Releases
## @sveltejs/enhanced-img@0.11.0

### Minor Changes


- feat: export `EnhancedImgAttributes` type
([#15649](#15649))


### Patch Changes


- fix: exclude imports with `?` character from transformation
([#15617](#15617))
## @sveltejs/kit@2.66.0

### Minor Changes


- feat: precompress prerendered `.md` and `.mdx` files
([#15893](#15893))


- feat: warn the user when they forget to make boolean inputs optional
in their form schemas
([#15804](#15804))


### Patch Changes


- fix: blur active element before component update during navigation so
that blur/focusout handlers fire while old component data is still valid
([#15452](#15452))


- fix: ensure `base` is available from `$service-worker` during
development ([#15882](#15882))


- fix: use correct relative asset paths when rendering an error page for
a missing `__data.json` request
([#15884](#15884))


- fix: preserve active `for await` consumers across `query.live`
reconnects ([#16022](#16022))


- fix: settle `query.live` reconnect promise on all exit paths,
preventing `invalidateAll()` from deadlocking when a live query is
offline or interrupted
([#16022](#16022))


- fix: preserve last value when a `query.live` stream completes without
yielding on reconnect
([#16022](#16022))


- fix: remove `types: ['node']` from generated tsconfig to avoid errors
when `@types/node` is not installed
([#15709](#15709))


- fix: prefer pages over endpoints when prerendering
([#16076](#16076))


- fix: restore snapshots after afterNavigate callbacks
([#16066](#16066))


- fix: support `ws:`/`wss:` and `trusted-types-eval` for CSP sources
([#15938](#15938))


- fix: omit empty `file` inputs from remote form data
([#15898](#15898))


- fix: fail early if a route with `+page` and `+server` is marked as
prerenderable ([#16075](#16075))


- fix: wait a tick before resetting forms
([#15805](#15805))


- fix: `preflight` schemas apply correctly when chained before `for`
([#15863](#15863))


- fix: blank page in SPA mode when root layout `load()` throws
([#15798](#15798))


- fix: pass all unknown options from the `sveltekit` Vite plugin through
to `vite-plugin-svelte`
([#16010](#16010))
## @sveltejs/adapter-node@5.5.5

### Patch Changes


- fix: bundle entrypoints alongside app code
([#16069](#16069))


- fix: log the actual adapter-node listening address
([#15899](#15899))

- Updated dependencies
[[`63f1b0b`](63f1b0b),
[`1dbff3f`](1dbff3f),
[`961ba01`](961ba01),
[`d2e108c`](d2e108c),
[`d2e108c`](d2e108c),
[`d2e108c`](d2e108c),
[`860b3c7`](860b3c7),
[`f8c842c`](f8c842c),
[`d3aa5fe`](d3aa5fe),
[`0dd7659`](0dd7659),
[`03e9f66`](03e9f66),
[`57b7b7b`](57b7b7b),
[`4eabadc`](4eabadc),
[`6fbf2b6`](6fbf2b6),
[`276744d`](276744d),
[`8740132`](8740132),
[`f430a68`](f430a68),
[`1c7a8dc`](1c7a8dc)]:
  - @sveltejs/kit@2.66.0
## @sveltejs/adapter-vercel@6.3.4

### Patch Changes


- fix: prevent missing immutable assets from being cached as 404s for a
year ([#16077](#16077))

- Updated dependencies
[[`63f1b0b`](63f1b0b),
[`1dbff3f`](1dbff3f),
[`961ba01`](961ba01),
[`d2e108c`](d2e108c),
[`d2e108c`](d2e108c),
[`d2e108c`](d2e108c),
[`860b3c7`](860b3c7),
[`f8c842c`](f8c842c),
[`d3aa5fe`](d3aa5fe),
[`0dd7659`](0dd7659),
[`03e9f66`](03e9f66),
[`57b7b7b`](57b7b7b),
[`4eabadc`](4eabadc),
[`6fbf2b6`](6fbf2b6),
[`276744d`](276744d),
[`8740132`](8740132),
[`f430a68`](f430a68),
[`1c7a8dc`](1c7a8dc)]:
  - @sveltejs/kit@2.66.0

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
huskas-2189 pushed a commit to huskas-2189/Bookmark that referenced this pull request Jun 20, 2026
This PR contains the following updates:

| Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [@sveltejs/kit](https://svelte.dev) ([source](https://github.com/sveltejs/kit/tree/HEAD/packages/kit)) | [`2.65.1` → `2.66.0`](https://renovatebot.com/diffs/npm/@sveltejs%2fkit/2.65.1/2.66.0) | ![age](https://developer.mend.io/api/mc/badges/age/npm/@sveltejs%2fkit/2.66.0?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@sveltejs%2fkit/2.65.1/2.66.0?slim=true) |

---

### Release Notes

<details>
<summary>sveltejs/kit (@&#8203;sveltejs/kit)</summary>

### [`v2.66.0`](https://github.com/sveltejs/kit/blob/HEAD/packages/kit/CHANGELOG.md#2660)

[Compare Source](https://github.com/sveltejs/kit/compare/@sveltejs/kit@2.65.2...@sveltejs/kit@2.66.0)

##### Minor Changes

- feat: precompress prerendered `.md` and `.mdx` files ([#&#8203;15893](sveltejs/kit#15893))

- feat: warn the user when they forget to make boolean inputs optional in their form schemas ([#&#8203;15804](sveltejs/kit#15804))

##### Patch Changes

- fix: blur active element before component update during navigation so that blur/focusout handlers fire while old component data is still valid ([#&#8203;15452](sveltejs/kit#15452))

- fix: ensure `base` is available from `$service-worker` during development ([#&#8203;15882](sveltejs/kit#15882))

- fix: use correct relative asset paths when rendering an error page for a missing `__data.json` request ([#&#8203;15884](sveltejs/kit#15884))

- fix: preserve active `for await` consumers across `query.live` reconnects ([#&#8203;16022](sveltejs/kit#16022))

- fix: settle `query.live` reconnect promise on all exit paths, preventing `invalidateAll()` from deadlocking when a live query is offline or interrupted ([#&#8203;16022](sveltejs/kit#16022))

- fix: preserve last value when a `query.live` stream completes without yielding on reconnect ([#&#8203;16022](sveltejs/kit#16022))

- fix: remove `types: ['node']` from generated tsconfig to avoid errors when `@types/node` is not installed ([#&#8203;15709](sveltejs/kit#15709))

- fix: prefer pages over endpoints when prerendering ([#&#8203;16076](sveltejs/kit#16076))

- fix: restore snapshots after afterNavigate callbacks ([#&#8203;16066](sveltejs/kit#16066))

- fix: support `ws:`/`wss:` and `trusted-types-eval` for CSP sources ([#&#8203;15938](sveltejs/kit#15938))

- fix: omit empty `file` inputs from remote form data ([#&#8203;15898](sveltejs/kit#15898))

- fix: fail early if a route with `+page` and `+server` is marked as prerenderable ([#&#8203;16075](sveltejs/kit#16075))

- fix: wait a tick before resetting forms ([#&#8203;15805](sveltejs/kit#15805))

- fix: `preflight` schemas apply correctly when chained before `for` ([#&#8203;15863](sveltejs/kit#15863))

- fix: blank page in SPA mode when root layout `load()` throws ([#&#8203;15798](sveltejs/kit#15798))

- fix: pass all unknown options from the `sveltekit` Vite plugin through to `vite-plugin-svelte` ([#&#8203;16010](sveltejs/kit#16010))

### [`v2.65.2`](https://github.com/sveltejs/kit/blob/HEAD/packages/kit/CHANGELOG.md#2652)

[Compare Source](https://github.com/sveltejs/kit/compare/@sveltejs/kit@2.65.1...@sveltejs/kit@2.65.2)

##### Patch Changes

- fix: throw an error when prerendering a root +server.js that returns a non-HTML response ([#&#8203;15994](sveltejs/kit#15994))

- fix: decode base64-serialized fetch bodies before caching them for client-side replay ([#&#8203;16034](sveltejs/kit#16034))

- fix: correctly access explicit dynamic public environment variables from prerendered pages and service workers ([#&#8203;16024](sveltejs/kit#16024))

- fix: allow `preloadCode` to be called during initial page load ([#&#8203;16028](sveltejs/kit#16028))

- fix: send `cache-control: private, no-store` on remote function responses so personalized query results can never be cached by shared caches ([#&#8203;16020](sveltejs/kit#16020))

- fix: preserve the HTTP status and error body when a remote function request fails in transport (e.g. a 401/403 from a `handle` hook), instead of reporting a generic 500 ([#&#8203;16021](sveltejs/kit#16021))

- fix: avoid loading universal nodes during build analysis when the app uses a hash router ([#&#8203;16042](sveltejs/kit#16042))

- fix: correctly serve client entry during development when using the pnpm global virtual store ([#&#8203;16045](sveltejs/kit#16045))

- fix: normalize path separators when comparing config ([#&#8203;16037](sveltejs/kit#16037))

- fix: ensure `building` resolves correctly to allow avoiding build-time explicit environment variable validation ([#&#8203;16058](sveltejs/kit#16058))

- fix: prevent unhandled promise rejections when remote function failures are consumed via `current`/`error` instead of `await` ([#&#8203;16018](sveltejs/kit#16018))

</details>

---

### Configuration

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🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

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---

This PR has been generated by [Mend Renovate](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4yMjAuMCIsInVwZGF0ZWRJblZlciI6IjQzLjIyMC4wIiwidGFyZ2V0QnJhbmNoIjoiZGV2ZWxvcCIsImxhYmVscyI6W119-->

Reviewed-on: https://codeberg.org/huskas-2189/Bookmark/pulls/126
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