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Fix Vite build options inheritance for client environment#16785

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matthewp merged 1 commit into
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flue/fix-16268
May 20, 2026
Merged

Fix Vite build options inheritance for client environment#16785
matthewp merged 1 commit into
mainfrom
flue/fix-16268

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@astrobot-houston

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Changes

  • Fixes vite.build.minify, vite.build.sourcemap, and rollup output options being ignored when configured through the top-level vite.build in astro.config.ts
  • Adds proper fallback chains so client environment config inherits from top-level Vite config, with environment-specific overrides taking highest priority
  • Resolves regression from Vite Environment API migration (PR Environment API #14306) where these options were hardcoded instead of respecting user configuration

Testing

  • Added 8 new unit tests in packages/astro/test/units/build/vite-build-config.test.ts covering minify, sourcemap, and rollup output inheritance scenarios
  • Tests verify environment-specific config takes priority over top-level config, which takes priority over defaults
  • Existing sourcemap integration tests continue to pass

Docs

  • No docs update needed, as this restores documented behavior that was broken by the Environment API migration

Closes #16268

@astrobot-houston astrobot-houston added the fix verified Reporter confirmed the triage bot fix works label May 19, 2026
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changeset-bot Bot commented May 19, 2026

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🦋 Changeset detected

Latest commit: 5dc6958

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

This PR includes changesets to release 416 packages
Name Type
astro Patch
@e2e/astro-linked-lib Patch
@e2e/actions-blog Patch
@e2e/actions-react-19 Patch
@e2e/astro-component Patch
@e2e/astro-envs Patch
@e2e/astro-island-hydration-error Patch
@test/astro-cloudflare-node-prerender-mdx Patch
@test/astro-cloudflare Patch
@e2e/content-collections Patch
@e2e/csp-server-islands Patch
@e2e/css Patch
@test/custom-client-directives Patch
@e2e/dev-toolbar Patch
@e2e/error-cyclic Patch
@e2e/error-sass Patch
@e2e/errors Patch
@e2e/hydration-race Patch
@e2e/i18n Patch
@test/nested-style-bug-e22e Patch
@e2e/preact-compat-component Patch
@e2e/preact-component Patch
@e2e/preact-lazy-component Patch
@e2e/prefetch Patch
@e2e/react-component Patch
@e2e/server-islands-key Patch
@e2e/server-islands Patch
@e2e/solid-circular Patch
@e2e/solid-component Patch
@e2e/solid-recurse Patch
@e2e/svelte-component Patch
@e2e/e2e-tailwindcss Patch
@e2e/ts-resolution Patch
@e2e/view-transitions Patch
@e2e/vite-virtual-modules Patch
@e2e/vue-component Patch
@performance/md Patch
@performance/mdoc Patch
@performance/mdx Patch
@test/0-css Patch
fake-astro-library Patch
@test/actions Patch
@test/alias-path-alias-style Patch
@test/ts-paths-no-baseurl Patch
@test/aliases-tsconfig Patch
@test/aliases Patch
@test/api-routes Patch
@test/asset-query-params-chunks Patch
@test/asset-url-base Patch
@test/astro-pages Patch
@test/astro-assets-prefix Patch
@test/astro-assets Patch
@test/astro-basic Patch
@test/astro-check-errors Patch
@test/astro-check-no-errors Patch
@test/astro-check-watch Patch
@test/astro-children Patch
@test/astro-client-only Patch
@test/astro-component-bundling Patch
@test/astro-component-code Patch
@test/astro-cookies Patch
@test/astro-css-bundling Patch
@test/astro-dev-headers Patch
@test/astro-dev-http2 Patch
@test/astro-directives Patch
@test/astro-doctype Patch
@test/astro-dynamic Patch
@test/astro-env-content-collections Patch
@test/astro-env-required-public Patch
@test/astro-env-server-fail Patch
@test/astro-env-server-secret Patch
@test/astro-env Patch
@test/astro-envs Patch
@test/astro-expr Patch
@test/astro-get-static-paths Patch
@test/astro-head Patch
@test/astro-jsx Patch
@test/astro-manifest-client-script Patch
@test/astro-manifest-invalid Patch
@test/astro-manifest Patch
@test/astro-markdown-frontmatter-injection Patch
@test/astro-markdown-plugins Patch
@test/astro-markdown-remarkRehype Patch
@test/astro-markdown-skiki-default-color Patch
@test/astro-markdown-skiki-langs Patch
@test/astro-markdown-skiki-themes-custom Patch
@test/astro-markdown-skiki-themes-integrated Patch
@test/astro-markdown-skiki-wrap-false Patch
@test/astro-markdown-skiki-wrap-null Patch
@test/astro-markdown-skiki-wrap-true Patch
@test/astro-markdown-url Patch
@test/astro-markdown Patch
@test/astro-mode Patch
@test/astro-not-response Patch
@test/astro-page-directory-url Patch
@test/astro-partial-html Patch
@test/astro-preview-allowed-hosts Patch
@test/astro-preview-headers Patch
@test/astro-public Patch
@test/astro-script-template-dedup Patch
@test/astro-scripts Patch
@test/astro-slots-nested Patch
@test/astro-slots Patch
@test/concurrency Patch
@test/build-readonly-file Patch
@test/cache-memory-query-include Patch
@test/cache-memory-query Patch
@test/cache-memory Patch
@test/cache-route Patch
@test/client-address-node Patch
@test/client-address Patch
@test/code-component Patch
@test/component-library Patch
@test/config-vite-css-target Patch
@test/config-vite Patch
@test/react-container Patch
@test/content-with-spaces-in-folder-name Patch
@test/content-collection-picture-render Patch
@example/content-collection-references Patch
@test/content-collection-tla-svg Patch
@test/content-collections-base Patch
@test/content-collections-empty-dir Patch
@test/content-collections-empty-md-file Patch
@test/content-collections-mutation Patch
@test/content-collections-number-id Patch
@test/content-collections-type-inference Patch
@test/content-collections-with-config-mjs Patch
@test/content-collections Patch
@test/content-frontmatter Patch
@test/content-intellisense Patch
@test/content-layer-loader-schema-function Patch
@test/content-layer-remark-plugins Patch
@test/content-layer Patch
@test/content-ssr-integration Patch
@test/content-static-paths-integration Patch
@test/content Patch
@test/core-image-data-url Patch
@test/core-image-deletion-ssr Patch
@test/core-image-deletion Patch
@test/core-image-errors Patch
@test/core-image-fs-config Patch
@test/core-image-remark-infersize Patch
@test/core-image-layout Patch
@test/core-image-picture-emit-file Patch
@test/core-image-remark-imgattr Patch
@test/core-image-ssg Patch
@test/core-image-ssr Patch
@test/core-image-svg-in-client Patch
@test/core-image-svg Patch
@test/core-image-unconventional-settings Patch
@test/core-image Patch
@test/csp-adapter Patch
@test/csp-fonts Patch
@test/csp Patch
@test/css-assets Patch
@test/css-dangling-references Patch
@test/css-deduplication Patch
@test/css-double-bundle Patch
@test/css-dynamic-import-dev Patch
@test/css-import-as-inline Patch
@test/css-inline-stylesheets Patch
@test/css-no-code-split Patch
@test/custom-404-injected-from-dep Patch
@test/custom-404-pkg Patch
@test/custom-500-failing Patch
@test/custom-500 Patch
custom-fetch-error-pages Patch
@test/custom-renderer Patch
@test/data-collections-schema Patch
@test/data-collections Patch
@test/debug-component Patch
@test/dev-container Patch
@test/dev-render Patch
@test/dev-request-url Patch
@test/dynamic-endpoint-collision Patch
@test/dynamic-route-build-file Patch
@test/endpoint-routing Patch
@test/error-bad-js Patch
@test/error-build-location Patch
@test/error-non-error Patch
@test/extension-matching Patch
@test/fetch Patch
@test/fonts Patch
@test/astro-fontsource-package Patch
@test/get-static-paths-pages Patch
@test/glob-pages-css Patch
@test/head-propagation-prerender-env Patch
@test/hmr-markdown Patch
@test/hmr-new-page Patch
@test/hmr-slots-render Patch
@test/hoisted-imports Patch
@test/html-component Patch
@test/html-escape Patch
@test/html-page Patch
@test/html-slots Patch
@test/hydration-race Patch
@test/i18n-css-leak-basic Patch
@test/import-ts-with-js Patch
@test/impostor-md-file Patch
@test/integration-add-page-extension Patch
@test/integration-server-setup Patch
@test/jsx-queue-rendering Patch
@test/large-array-solid Patch
@test/legacy-collections-backwards-compat Patch
@test/lightningcss-scoped-nesting Patch
@test/live-loaders Patch
@test/markdown Patch
@test/middleware-dev Patch
@test/middleware-full-ssr Patch
@test/middleware-no-user-middlewaqre Patch
@test/middleware-sequence-rewrite Patch
@test/middleware-tailwind Patch
@test/minification-html-jsx Patch
@test/minification-html Patch
@test/non-ascii-path Patch
@test/non-html-pages Patch
@test/page-format Patch
@test/page-level-styles Patch
@test/parallel-components Patch
@test/partials-css-boundary Patch
@test/partials Patch
@test/passthrough-image-service Patch
@test/postcss Patch
@test/preact-compat-component Patch
@test/preact-component Patch
@test/queue-rendering Patch
@test/remote-css Patch
@test/request-signal Patch
@test/reuse-injected-entrypoint Patch
@test/rewrite-runtime-error-custom500 Patch
@test/rewrite-runtime-error Patch
@test/reroute-server Patch
@test/rewrite-trailing-slash-never Patch
@test/rewrite-with-base Patch
@test/root-srcdir-css Patch
@test/scoped-style-strategy Patch
@test/server-entry-fake-adapter Patch
@test/server-entry Patch
@test/server-islands-hybrid Patch
@test/server-islands-ssr Patch
@test/sessions Patch
@test/slots-preact Patch
@test/slots-react Patch
@test/slots-solid Patch
@test/slots-svelte Patch
@test/slots-vue Patch
@test/solid-component Patch
@test/sourcemap Patch
@test/space-in-folder-name Patch
@test/special-chars-in-component-imports Patch
@test/ssr-api-route Patch
@test/ssr-assets Patch
@test/ssr-dynamic Patch
@test/ssr-partytown Patch
@test/ssr-prerender-get-static-paths Patch
@test/ssr-prerender Patch
@test/ssr-preview Patch
@test/ssr-renderers-static-vue Patch
@test/ssr-request Patch
@test/ssr-hoisted-script Patch
@test/ssr-scripts Patch
@test/static-build-code-component Patch
@test/static-build-dir Patch
@test/static-build-frameworks Patch
@test/static-build-page-url-format Patch
@test/static-build-ssr Patch
@test/static-build Patch
@test/static-redirect Patch
@test/streaming Patch
@test/svelte-component Patch
@test/svg-deduplication Patch
@test/tailwindcss Patch
@e2e/third-party-astro Patch
@test/url-import-suffix Patch
@test/view-transitions Patch
@test/virtual-astro-file Patch
@test/vitest Patch
@test/vue-component Patch
@test/vue-with-multi-renderer Patch
@test/db-aliases Patch
@test/db-db-in-src Patch
@test/error-handling Patch
@test/db-integration-only Patch
@test/db-integration Patch
@test/db-libsql-remote Patch
@test/db-local-prod Patch
@test/db-no-apptoken Patch
@test/db-no-seed Patch
@test/recipes Patch
@test/db-static-remote Patch
@test/alpinejs-basics Patch
@test/alpinejs-directive Patch
@test/alpinejs-plugin-script-import Patch
@test/astro-cloudflare-allowed-hosts Patch
@test/astro-cloudflare-astro-dev-platform Patch
@test/astro-cloudflare-astro-env Patch
@test/astro-cloudflare-binding-image-service Patch
@test/astro-cloudflare-cache-provider-wait-until Patch
@test/astro-cloudflare-client-address Patch
@test/astro-cloudflare-compile-image-service Patch
@test/astro-cloudflare-custom-entryfile Patch
@test/astro-cloudflare-dev-image-endpoint Patch
@test/astro-cloudflare-external-image-service Patch
@test/astro-cloudflare-external-redirects Patch
@test/astro-cloudflare-internal-redirects Patch
@test/astro-cloudflare-no-output Patch
@test/astro-cloudflare-prerender-node-env Patch
@test/astro-cloudflare-prerender-queue-consumers Patch
@test/astro-cloudflare-prerender-styles Patch
@test/astro-cloudflare-prerenderer-errors Patch
@test/routing-priority-cloudflare Patch
@test/cf-server-entry Patch
@test/astro-cloudflare-server-island-prerender-framework Patch
@test/astro-cloudflare-sql-import Patch
@test/cf-ssr-deps Patch
@test/astro-cloudflare-static Patch
@test/astro-cloudflare-svelte-rune-deps Patch
@test/astro-cloudflare-top-level-return Patch
@test/astro-cloudflare-vite-plugin Patch
@test/astro-cloudflare-with-base Patch
@test/astro-cloudflare-with-react Patch
@test/astro-cloudflare-with-solid-js Patch
@test/astro-cloudflare-with-svelte Patch
@test/astro-cloudflare-with-vue Patch
@test/astro-cloudflare-wrangler-preview-platform Patch
@test/markdoc-content-collections Patch
@test/content-layer-markdoc Patch
@test/headings-custom Patch
@test/headings Patch
@test/image-assets-custom Patch
@test/image-assets Patch
@test/markdoc-propagated-assets Patch
@test/markdoc-render-with-space Patch
@test/markdoc-render-html Patch
@test/markdoc-render-null Patch
@test/markdoc-render-partials Patch
@test/markdoc-render-simple Patch
@test/markdoc-render-table-attrs Patch
@test/markdoc-render-typographer Patch
@test/markdoc-render-with-components Patch
@test/markdoc-render-with-config Patch
@test/markdoc-render-with-extends-components Patch
@test/markdoc-render-with-indented-components Patch
@test/markdoc-render-with-transform Patch
@test/markdoc-variables Patch
@test/content-layer-rendering Patch
@test/mdx-css-head-mdx Patch
@test/image-remark-imgattr Patch
@test/mdx-astro-container-escape Patch
@test/mdx-frontmatter-injection Patch
@test/netlify-skew-protection Patch
@test/netlify-hosted-astro-project Patch
@test/nodejs-api-route Patch
@test/nodejs-badurls Patch
@test/nodejs-encoded Patch
@test/nodejs-errors Patch
@test/nodejs-headers Patch
@test/nodejs-image Patch
@test/locals Patch
@test/node-middleware Patch
@test/nodejs-prerender-404-500 Patch
@test/nodejs-prerender Patch
@test/nodejs-prerendered-error-page-fetch Patch
@test/nodejs-preview-headers Patch
@test/redirects Patch
@test/node-sessions Patch
@test/ssr-assets-middleware Patch
@test/node-static-headers Patch
@test/node-trailingslash Patch
@test/url Patch
@test/well-known-locations Patch
@test/react-component Patch
@test/sitemap-chunks Patch
@test/sitemap-dynamic Patch
@test/sitemap-i18n-fallback Patch
@test/sitemap-ssr Patch
@test/sitemap-static Patch
@test/sitemap-trailing-slash Patch
async-rendering Patch
conditional-rendering Patch
@test/empty-class Patch
svelte-prop-types Patch
@test/astro-vercel-basic Patch
@test/astro-vercel-image Patch
@test/astro-vercel-integration-assets Patch
@test/vercel-isr Patch
@test/vercel-max-duration Patch
@test/vercel-edge-middleware-with-edge-file Patch
@test/vercel-edge-middleware-without-edge-file Patch
@test/astro-vercel-no-output Patch
@test/astro-vercel-prerendered-error-pages Patch
@test/astro-vercel-redirects-serverless Patch
@test/astro-vercel-redirects Patch
@test/vercel-server-islands Patch
@test/astro-vercel-serverless-prerender Patch
@test/astro-vercel-serverless-with-dynamic-routes Patch
@test/astro-vercel-static-assets Patch
@test/vercel-static-headers Patch
@test/astro-vercel-static Patch
@test/vercel-streaming Patch
@test/astro-vercel-with-web-analytics-enabled-output-as-static Patch
vercel-hosted-astro-project Patch
@test/vue-app-entrypoint-async Patch
@test/vue-app-entrypoint-css Patch
@test/vue-app-entrypoint-no-export-default Patch
@test/vue-app-entrypoint-relative Patch
@test/vue-app-entrypoint-src-absolute Patch
@test/vue-app-entrypoint Patch
@test/vue-basics Patch
vue-prop-types Patch
astro-benchmark Patch
@benchmark/adapter Patch
@benchmark/timer Patch
benchmark-build-hybrid Patch
benchmark-build-server Patch
benchmark-build-static Patch

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@github-actions github-actions Bot added the pkg: astro Related to the core `astro` package (scope) label May 19, 2026
@codspeed-hq

codspeed-hq Bot commented May 19, 2026

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Merging this PR will not alter performance

✅ 18 untouched benchmarks


Comparing flue/fix-16268 (5dc6958) with main (068d924)1

Open in CodSpeed

Footnotes

  1. No successful run was found on main (1e318da) during the generation of this report, so 068d924 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report.

@ematipico ematipico added the pr preview Apply this label to a PR to generate a preview release label May 20, 2026
@github-actions github-actions Bot removed the pr preview Apply this label to a PR to generate a preview release label May 20, 2026
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npm i https://pkg.pr.new/astro@16785

commit: 5dc6958

@matthewp matthewp merged commit de96360 into main May 20, 2026
30 checks passed
@matthewp matthewp deleted the flue/fix-16268 branch May 20, 2026 20:29
@astrobot-houston astrobot-houston mentioned this pull request May 20, 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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Ignore "sourcemap", "minify", "compact"

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