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Fix Node adapter buffer bodies with serverless-http#16821

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matthewp merged 1 commit into
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flue/fix-16820
May 21, 2026
Merged

Fix Node adapter buffer bodies with serverless-http#16821
matthewp merged 1 commit into
mainfrom
flue/fix-16820

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Changes

  • Fixes Node adapter in middleware mode incorrectly JSON-stringifying Buffer bodies from serverless-http
  • Adds binary data check (ArrayBuffer.isView() and instanceof ArrayBuffer) before generic object branch in makeRequestBody
  • Buffer, Uint8Array, and other typed arrays now pass through directly as valid BodyInit values

Testing

  • Added 5 new test cases in test/units/app/node.test.ts covering Buffer, Uint8Array, ArrayBuffer, plain objects, and strings
  • Verifies binary data passes through unchanged while preserving existing string/object handling
  • All existing tests pass with no regressions

Docs

  • No docs update needed, this restores expected behavior for a specific integration pattern

Closes #16820

@astrobot-houston astrobot-houston added the fix verified Reporter confirmed the triage bot fix works label May 21, 2026
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🦋 Changeset detected

Latest commit: 4655e72

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

This PR includes changesets to release 415 packages
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astro Patch
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@github-actions github-actions Bot added the pkg: astro Related to the core `astro` package (scope) label May 21, 2026
@codspeed-hq

codspeed-hq Bot commented May 21, 2026

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Merging this PR will not alter performance

✅ 18 untouched benchmarks


Comparing flue/fix-16820 (4655e72) with main (1c8dcc8)

Open in CodSpeed

@matthewp matthewp merged commit 9c76b12 into main May 21, 2026
31 checks passed
@matthewp matthewp deleted the flue/fix-16820 branch May 21, 2026 12:12
@astrobot-houston astrobot-houston mentioned this pull request May 21, 2026
dadezzz pushed a commit to dadezzz/university_notes that referenced this pull request May 25, 2026
This PR contains the following updates:

| Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [astro](https://astro.build) ([source](https://github.com/withastro/astro/tree/HEAD/packages/astro)) | [`6.3.6` → `6.3.7`](https://renovatebot.com/diffs/npm/astro/6.3.6/6.3.7) | ![age](https://developer.mend.io/api/mc/badges/age/npm/astro/6.3.7?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/astro/6.3.6/6.3.7?slim=true) |

---

### Release Notes

<details>
<summary>withastro/astro (astro)</summary>

### [`v6.3.7`](https://github.com/withastro/astro/blob/HEAD/packages/astro/CHANGELOG.md#637)

[Compare Source](https://github.com/withastro/astro/compare/astro@6.3.6...astro@6.3.7)

##### Patch Changes

- [#&#8203;16821](withastro/astro#16821) [`9c76b12`](withastro/astro@9c76b12) Thanks [@&#8203;astrobot-houston](https://github.com/astrobot-houston)! - Fixes request body handling in the Node adapter when `req.body` is a `Buffer`, `Uint8Array`, or `ArrayBuffer`. Previously, binary body data was incorrectly JSON-stringified (producing `{"type":"Buffer","data":[...]}`) instead of being passed through directly. This affected libraries like `serverless-http` that set `req.body` to a `Buffer`.

- [#&#8203;16785](withastro/astro#16785) [`de96360`](withastro/astro@de96360) Thanks [@&#8203;astrobot-houston](https://github.com/astrobot-houston)! - Fixes `vite.build.minify`, `vite.build.sourcemap`, and `vite.build.rollupOptions.output` (e.g. `compact`) being ignored for client-side builds. These top-level Vite build options are now properly forwarded to the client environment, with environment-specific overrides (`vite.environments.client.build.*`) taking priority when set.

- [#&#8203;16819](withastro/astro#16819) [`b5dd8f1`](withastro/astro@b5dd8f1) Thanks [@&#8203;astrobot-houston](https://github.com/astrobot-houston)! - Fixes custom elements in MDX files bypassing the renderer pipeline. Custom elements (tags containing hyphens like `<my-element>`) in `.mdx` files are now routed through registered renderers for SSR, matching the behavior of `.astro` files. If no renderer claims the element, it falls back to rendering as raw HTML.

- [#&#8203;16808](withastro/astro#16808) [`765896c`](withastro/astro@765896c) Thanks [@&#8203;ematipico](https://github.com/ematipico)! - Fixes dynamic routes returning 400 Bad Request when the URL contains a literal `%` character, such as paths built with `encodeURIComponent('%?.pdf')`

- [#&#8203;16804](withastro/astro#16804) [`90d2aca`](withastro/astro@90d2aca) Thanks [@&#8203;jp-knj](https://github.com/jp-knj)! - Fixes a v6 regression where `astro:i18n` could not be imported from client `<script>` blocks.

</details>

---

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Node adapter in middleware mode doesn't work with serverless-http

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