fix(css): rewrite absolute URLs with base path in dev mode #14622

aprici7y · 2025-10-26T16:16:40Z

Changes

Fixes CSS url() references to public assets returning 404 in dev mode when base path is configured
Adds rewriteCssUrls() function in packages/astro/src/core/compile/style.ts that applies URL rewriting after preprocessCSS()
Uses Vite's production-tested cssUrlRE regex pattern from vite/packages/vite/src/node/plugins/css.ts
Rewrites absolute URLs like /fonts/font.woff to /my-base/fonts/font.woff in dev mode
Preserves relative paths (./), external URLs (https://), data URIs, and protocol-relative URLs (//)

Root cause: Vite's preprocessCSS() API explicitly does not resolve URLs (docs). During build, Vite's CSS plugin handles URL rewriting, but
in dev mode Astro calls preprocessCSS() directly, bypassing the URL rewriting step.

Closes #14585

Testing

25 unit tests added in packages/astro/test/units/compile/css-base-path.test.js covering:

Absolute URL rewriting (7 tests)
URLs that should NOT be rewritten (6 tests)
Edge cases (4 tests)
Complex CSS scenarios (7 tests)
Sass/SCSS preprocessing (1 test)

Manual testing:

cd examples/minimal
echo "export default { base: '/my-base/' }" > astro.config.mjs
cat > src/pages/test.astro << 'EOF'
<!DOCTYPE html>
<html>
<head>
  <style>
    body { background: url('/test.png'); }
  </style>
</head>
<body><h1>Test</h1></body>
</html>
EOF

# Dev mode test
pnpm dev
# Open http://localhost:4321/my-base/test
# Verify: <style> tag shows url(/my-base/test.png)

# Build mode test
pnpm build
cat dist/test/index.html
# Verify: CSS contains url(/my-base/test.png)

##Docs

No documentation changes needed. This fix makes existing behavior work correctly - users already expect CSS URLs to respect the base configuration, this just fixes the dev mode bug where it wasn't working.

Fixes CSS url() references to public assets returning 404 in dev mode when base path is configured. Applies URL rewriting after preprocessCSS() using Vite's cssUrlRE regex pattern. Closes withastro#14585

changeset-bot · 2025-10-26T16:16:45Z

🦋 Changeset detected

Latest commit: 39722ac

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

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codspeed-hq · 2025-10-26T16:30:49Z

CodSpeed Performance Report

Merging this PR will not alter performance

_{Comparing aprici7y:fix/css-base-path-dev (39722ac) with main (2fa19c4)¹}

Summary

✅ 9 untouched benchmarks

No successful run was found on main (778f83c) during the generation of this report, so 2fa19c4 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

matthewp · 2025-10-27T13:43:49Z

looks good overall

aprici7y · 2025-10-27T15:29:30Z

fixed the linting error

packages/astro/test/units/compile/css-base-path.test.js

ematipico · 2025-11-27T05:47:29Z

Apologies @aprici7y , I'm an idiot lol

I'll fix the pr soon

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)) | [`5.16.9` → `5.16.10`](https://renovatebot.com/diffs/npm/astro/5.16.9/5.16.10) | ![age](https://developer.mend.io/api/mc/badges/age/npm/astro/5.16.10?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/astro/5.16.9/5.16.10?slim=true) | --- ### Release Notes <details> <summary>withastro/astro (astro)</summary> ### [`v5.16.10`](https://github.com/withastro/astro/blob/HEAD/packages/astro/CHANGELOG.md#51610) [Compare Source](https://github.com/withastro/astro/compare/[email protected]@5.16.10) ##### Patch Changes - [`2fa19c4`](withastro/astro@2fa19c4) - Improved error handling in the rendering phase Added defensive validation in `App.render()` and `#renderError()` to provide a descriptive error message when a route module doesn't have a valid page function. - [#15199](withastro/astro#15199) [`d8e64ef`](withastro/astro@d8e64ef) Thanks [@ArmandPhilippot](https://github.com/ArmandPhilippot)! - Fixes the links to Astro Docs so that they match the current docs structure. - [#15169](withastro/astro#15169) [`b803d8b`](withastro/astro@b803d8b) Thanks [@rururux](https://github.com/rururux)! - fix: fix image 500 error when moving dist directory in standalone Node - [#14622](withastro/astro#14622) [`9b35c62`](withastro/astro@9b35c62) Thanks [@aprici7y](https://github.com/aprici7y)! - Fixes CSS url() references to public assets returning 404 in dev mode when base path is configured - [#15219](withastro/astro#15219) [`43df4ce`](withastro/astro@43df4ce) Thanks [@matthewp](https://github.com/matthewp)! - Upgrades the `diff` package to v8 </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] If you want to rebase/retry this PR, check this box --- This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).  Co-authored-by: Renovate Bot <[email protected]> Co-committed-by: Renovate Bot <[email protected]>

* fix(ci): Reinstall deps after having published VS Code (#14996) * fix(svelte): allow client directives (#15004) * fix(assets): Fixes missing format option for svgs in the passthrough service (#14987) * fix(assets): Fixes missing format option for svgs in the passthrough service * fix: wtf is going on * chore: changeset * [ci] format * chore: auto format next (#15009) * chore(deps): update github-actions (#15019) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> * fix(deps): update all non-major dependencies (#15020) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> * Support extending the image API props type (#15014) * [ci] release (#14997) Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> * fix(content-layer): Try a smarter solution to normalize bare image paths in JSON (#15028) * fix(content-layer): Try a smarter solution to normalize bare image paths in JSON * chore: changeset * [ci] format * chore: document core/infra architecture (#14815) Co-authored-by: Emanuele Stoppa <[email protected]> Co-authored-by: Matt Kane <[email protected]> Co-authored-by: Matthew Phillips <[email protected]> Co-authored-by: Matthew Phillips <[email protected]> * [ci] format * fix(astro): assets vite build log (#15034) * chore(sitemap): migrate to astro:routes:resolved (#15033) * fix: Remote images: Prevent internal caching from interfering with Astro's cache (#14954) Co-authored-by: Florian Lefebvre <[email protected]> * [ci] format * Update font utility dependencies to use lighter versions (#15055) * Update font utility dependencies to use lighter versions * Add changeset * skip flaky view transitions redirect test (#15060) * chore(deps): update actions-cool/issues-helper action to v3.7.5 (#15071) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> * ClientRouter: Preserve hash fragment during redirects (#15088) * try resurrecting a flaky test (#15089) * fix(deps): update astro adapters (#15084) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> * fix(deps): update all non-major dependencies (#15072) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> * fix(deps): update astro client runtimes (#15085) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> * fix: move ts-plugin node_modules to dist (#15083) * fix: move ts-plugin node_modules to dist * add: changeset * [ci] format * Update image-size (#15105) * fix: components imports paths (#15107) * Tailwind example, README.md: update link (#15099) * fix(assets): Use Vite's isFileLoadingAllowed to check if a file can be loaded (#15052) * fix(assets): Use Vite's isFileLoadingAllowed to check if a file can be loaded * test: add * fix: windwos perhaos? * chore: changeset * [ci] format * Update prettier extension to new one (#15108) * fix(vscode): Correctly handle TypeScript blocks ending with types (#15109) * fix(vscode): Correctly handle TypeScript blocks ending with types * chore: changeset * [ci] format * fix(svelte): improve Svelte children prop type checking (#15070) * chore: Replace fast-glob with tinyglobby in language server (#15057) * chore: Replace fast-glob with tinyglobby in language server * Use `expandDirectories` option for compatibility with fast-glob * Update packages/language-tools/language-server/src/check.ts --------- Co-authored-by: Erika <[email protected]> * view transitions: fix Firefox e2e tests for playwright 1.57 (#15113) * fix(deps): update astro dependencies (#15103) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> Co-authored-by: Florian Lefebvre <[email protected]> * fix: lint vt test (#15114) * [ci] format * fix(deps): update language tools (#15104) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> Co-authored-by: Florian Lefebvre <[email protected]> * Feature/allow node 24 vercel adapter (#15116) * feat(fonts): new font resolver abstraction (#15111) * [ci] format * feat(fonts)!: upgrade unifont and support formats (#15117) Co-authored-by: Sarah Rainsberger <[email protected]> * fix(vue): add HTML attributes to generated TypeScript types (#15016) * fix(vue): add HTML attributes to generated TypeScript types Fixes #14686 * fix: add package exports and update tests for HTML attributes support * test(vue): add astro check test for HTML attributes Add test fixture and test case to verify that Vue components correctly accept HTML attributes (class, style, id, data-*) and client directives via astro check. Follows the same pattern as the Svelte integration tests. * chore: update lockfile for vue prop-types fixture * feat: deduplicate context types (#15122) Co-authored-by: Armand Philippot <[email protected]> * perf(astro): group chunks on emit (#15123) Co-authored-by: Florian Lefebvre <[email protected]> Co-authored-by: matthewp <[email protected]> Co-authored-by: florian-lefebvre <[email protected]> Co-authored-by: ematipico <[email protected]> * feat(fonts): clean types (#15118) * [ci] release (#15031) Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> * fix(vscode): Don't update @types/vscode automatically (#15131) * fix(vscode): Don't update @types/vscode automatically * chore: changeset * fix: adjust page warning to only show up in more relevant times (#15127) * fix: adjust page warning to only show up in more relevant times * chore: changeset * [ci] format * Update security contacts list (#15143) * fix(dev): preserve query params when base path is stripped (#15124) Co-authored-by: Florian Lefebvre <[email protected]> * fix(assets): hoist ?? inside JSON.stringify in virtual module codegen (#15140) * fix(assets): hoist nullish coalescing inside JSON.stringify Moves ?? fallbacks before serialization to eliminate dead code in generated virtual module. Fixes esbuild suspicious-nullish-coalescing warning. * chore: add changeset * Attempt to reduce falkiness in view transition e2e tests (#15142) * Attempt to reduce falkiness in view transition e2e tests * try wait for idle state * next try * Update view-transitions.test.js * [ci] format * fix(toolbar): skip image audit for framework components (#15149) * fix(toolbar): skip image audit for framework components Images inside astro-island elements (React, Vue, Svelte, etc. with client:* directives) now skip the 'Use the Image component' audit warning, since these components can't directly use Astro's Image component. Fixes #15048 * test: remove unused image * test: use smaller test image (22KB instead of 253KB) * fix: Accept setCookie from both context and headers (#15152) Co-authored-by: Florian Lefebvre <[email protected]> * [ci] release (#15132) Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> * fix(ci): Move ts-plugin-bundle to node_modules after recreating node_modules (#15156) * fix(ci): Move ts-plugin-bundle to node_modules after recreating node_modules * fix: make itw ork in dev * chore: changeset * [ci] release (#15158) Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> * fix: scripts not rendering with unused Fragment slots (#13847) (#15147) * Fix hydration for framework components in MDX slots (#15150) * Fix hydration for framework components in MDX slots using Astro.slots.render() * Update packages/astro/src/runtime/server/render/slot.ts Co-authored-by: Luiz Ferraz <[email protected]> --------- Co-authored-by: Luiz Ferraz <[email protected]> * [ci] format * feat: add benchmarks for build times (#15144) * feat: add benchmarks for build times * fix: put back old benchmarks * fix: remove old files * fix: reduce iteration count * fix: move setup in a different step * fix: ignore lints in benchmark projects * chore: lockfile * fix: just straight up nonsense * fix: im stuck in linting hell * [ci] format * feat(fonts)!: update font provider API (#15130) Co-authored-by: Sarah Rainsberger <[email protected]> * [ci] format * fix(deps): update astro adapters (#15173) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> * chore(deps): update dependency ovsx to ^0.10.8 (#15172) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> * chore(deps): update dependency preact to v10.28.2 [security] (#15160) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> * feat(fonts): export googleicons provider (#15174) Co-authored-by: HiDeoo <[email protected]> * [ci] release (#15159) Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> * fix: fix image 500 error when moving dist directory in standalone Node (#15169) * fix: fix image 500 error when moving dist directory in standalone Node * clean up old output directory * [ci] format * simplify gif image detection in sharp service (#15161) * Revert fix: Allow node: prefix for Node builtins for Vercel middleware (#14863) * Revert "fix: Allow node: prefix for Node builtins for Vercel middleware (#14839)" This reverts commit 9a284cd. * fix: adjust for feedback * chore: changeset --------- Co-authored-by: Princesseuh <[email protected]> * [ci] format * fix(node): hash URL stripping (#15196) * [ci] format * fix(core): add defensive validation for mod.page in App.render (#15148) * chore(deps): update dependency undici to v6.23.0 [security] (#15209) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> * fix(css): rewrite absolute URLs with base path in dev mode (#14622) * fix(css): rewrite absolute URLs with base path in dev mode Fixes CSS url() references to public assets returning 404 in dev mode when base path is configured. Applies URL rewriting after preprocessCSS() using Vite's cssUrlRE regex pattern. Closes #14585 * fix linting error * add changeset * fix spelling in changeset * Update packages/astro/test/units/compile/css-base-path.test.js * fix: experimental --------- Co-authored-by: Florian Lefebvre <[email protected]> Co-authored-by: Emanuele Stoppa <[email protected]> Co-authored-by: Erika <[email protected]> * [ci] format * Feature(sitemap): named files chunking strategy (#14471) * feat(sitemap): add chunking strategy for sitemaps Adds the ability to split sitemap generation into chunks based on customizable logic. This allows for better management of large sitemaps and improved performance. The new `chunks` option in the sitemap configuration allows users to define functions that categorize sitemap items into different chunks. Each chunk is then written to a separate sitemap file. This change introduces a new `writeSitemapChunk` function to handle the writing of individual sitemap chunks. * feat(sitemap): add chunks option to sitemap config Adds a `chunks` option to the sitemap configuration schema. This allows users to define custom chunking strategies for generating sitemaps, providing flexibility in how the sitemap is split into multiple files. * feat(sitemap): add sitemap chunk writing functionality * fix(sitemap): fix empty callback in writeSitemap The empty callback function in the `writeSitemap` function was causing unnecessary function calls. This commit fixes this by removing the empty callback. * feat(sitemap): add test fixture for sitemap chunking This commit adds a test fixture to verify the sitemap chunking functionality. It includes a configuration file, dependencies, and several pages to simulate a real-world scenario. * test(sitemap): add test for sitemap chunking with files * feat(sitemap): add changeset for sitemap chunking Adds changeset to document the new sitemap chunking feature. This feature allows splitting sitemap generation into chunks based on customizable logic, improving management of large sitemaps and performance. * build: update dependencies and add astro * chore: remove unused astro dependency * chore: remove unused entries from lockfile * refactor(sitemap): improve import ordering and formatting * refactor(sitemap): improve import ordering The import order of `AstroConfig` has been moved to align with other imports, improving code readability and consistency. This change ensures that type imports are grouped together, making the codebase easier to maintain. * refactor(sitemap): improve import ordering * refactor(sitemap): improve import ordering * refactor(sitemap): improve import ordering * refactor(sitemap): improve chunk file test readability Simplify the chunk file test by using `path.resolve` and `includes` for better readability and maintainability. This change improves the test's clarity without altering its functionality. * test(sitemap): fix flaky chunk file tests The tests were failing intermittently because the `readXML` function was not properly resolving the file path. This commit updates the `readXML` function to use `fixture.readFile` to ensure that the file path is resolved correctly. Additionally, the `flatMapUrls` function is now async to ensure that the `readXML` function is awaited. * refactor(sitemap): improve import ordering * Update .changeset/floppy-times-grab.md Co-authored-by: Matt Kane <[email protected]> * chore(sitemap): update changeset to minor The previous changeset incorrectly marked the sitemap chunking feature as a major change. This commit corrects the changeset to reflect that it is a minor feature addition. * feat(sitemap): add chunking support for sitemap generation * fix: attempt to fix lockfile * fix: conflict * fix: lockfile --------- Co-authored-by: Matt Kane <[email protected]> Co-authored-by: Princesseuh <[email protected]> * [ci] format * fix(docs): replace outdated Astro docs links (#15199) * fix: update outdated links to Astro Docs * some were correctly redirected, but might as well use the new links * some used the right page, but the section has been renamed or removed * some were no longer targeting the correct page * docs: add changeset * fix(lint): Move ESLint comment (#15216) * chore: move all pnpm settings to `pnpm-workspace.yaml` (#15139) * Upgrade diff package to v8 (#15219) * Upgrade diff package to v8 * Update packages/astro/package.json Co-authored-by: Chris Swithinbank <[email protected]> --------- Co-authored-by: Chris Swithinbank <[email protected]> * [ci] release (#15188) Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> * fix: update devalue to the latest (#15222) * fix(css): prevent CSS double-bundling (#14991) (#15017) * fix(css): prevent double-bundling when CSS imported from multiple locations Fixes #14991 When CSS was imported in both a page's frontmatter and a component's script tag, it was bundled twice in production builds. This happened because the CSS plugins run for both SSR and client builds, adding CSS to the same pageData.styles array. The fix adds content-based deduplication that checks existing styles before adding new ones - comparing by content for inline CSS and by src for external CSS. * chore: update pnpm-lock.yaml for new test fixture --------- Co-authored-by: Erika <[email protected]> * chore: add devalue changeset (#15225) * [ci] release (#15224) Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> * ci(benchmark): Run benchmarks on next as well (#15226) * fix: assets referenced via js chunks are not flagged as orphaned (#14607) * test: add failing case for url imports * fix: files added to chunks are not orphaned * docs: add comment explaining updated orphaned logic * docs: add changeset * fix: only check importedAssets * test: add case for ?url&no-inline import * Revert "Revert "fix(build): Prevent duplicate CSS for hydrated client components" (#14612)" This reverts commit 18552c7. * docs: update changeset * docs: update changeset * fix: lockfile --------- Co-authored-by: Erika <[email protected]> * [ci] format * Include styles for conditionally rendered Svelte 5 components (#15227) * fix(css): include styles for conditionally rendered Svelte 5 components When Svelte 5 components are conditionally rendered (e.g., inside {#if} blocks with an initially false condition), their styles were not being included in production builds. This happened because: 1. Svelte 5.26+ added css.hasGlobal flag to compiler output 2. vite-plugin-svelte 5.1.0+ uses this to add cssScopeTo metadata 3. Vite 6.2+ cssScopeTo allows CSS treeshaking if the export isn't "used" During SSR, conditionally rendered components aren't included in the server build (tree-shaken), but they are in the client build. Astro's CSS-to-page mapping primarily happens during the server build, so the CSS gets orphaned. The fix adds logic in the client build's generateBundle to: - Track which component exports are actually rendered (renderedComponentExports) - For CSS modules with cssScopeTo metadata where the export IS rendered, walk up the module graph to find pages and ensure the CSS is included Fixes #14252 * Track components from server pages * Revert "Update prettier extension to new one (#15108)" (#15235) This reverts commit a012a86. * fix(deps): update astro client runtimes (#15240) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> * chore(deps): update e18e/action-dependency-diff action to v1.4.3 (#15239) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> * fix(deps): update astro adapters (#15243) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> * fix(deps): update astro dependencies (#15241) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> * fix(deps): update dependency prettier to ^3.8.0 (#15244) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> * fix(deps): update all non-major dependencies (#15242) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> Co-authored-by: Florian Lefebvre <[email protected]> * fix: build * fix: lint * chore: upgrade pnpm (#15246) * chore: enable lockfile maintenance (#15245) * [ci] format * refactor(fonts): do not mutate provider name (#15190) * refactor(fonts): use runtime as entrypoint (#15181) * revert: renovate config rename (#15250) * Fix greedy regex in error message markdown rendering (#15230) Fixes #15068 * bug: Support remote url for css in content collection (#15254) fixes: #15252 * fix: prevent font copying when stopping dev server with q+enter (#15178) Co-authored-by: Florian Lefebvre <[email protected]> * fix: renovate config typo (#15256) * React / MDX nested regression (#15253) * test: add e2e test for React component nested in div in MDX Adds a regression test for issue #15251 where React components with client:load nested inside HTML elements in MDX files fail to hydrate. * fix: revert renderComponentToString changes that broke nested React hydration in MDX Reverts the changes to renderComponentToString from PR #15150 that caused React components nested inside HTML elements in MDX files to fail to hydrate. The original fix for MDX slot hydration still works without these changes. Fixes #15251 * chore: add changeset * chore(deps): lock file maintenance (#15257) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> * Fix tests that needed updating * Fix test that's statically false by mistake * Add virtual modules from astro integrations to external list --------- Co-authored-by: Erika <[email protected]> Co-authored-by: Antony Faris <[email protected]> Co-authored-by: Erika <[email protected]> Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> Co-authored-by: Chris Swithinbank <[email protected]> Co-authored-by: Houston (Bot) <[email protected]> Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> Co-authored-by: Emanuele Stoppa <[email protected]> Co-authored-by: Matt Kane <[email protected]> Co-authored-by: Matthew Phillips <[email protected]> Co-authored-by: Florian Lefebvre <[email protected]> Co-authored-by: Volpeon <[email protected]> Co-authored-by: Martin Trapp <[email protected]> Co-authored-by: fkatsuhiro <[email protected]> Co-authored-by: Oliver Speir <[email protected]> Co-authored-by: Andreas Deininger <[email protected]> Co-authored-by: Roman <[email protected]> Co-authored-by: fabon <[email protected]> Co-authored-by: Raanelom <[email protected]> Co-authored-by: Sarah Rainsberger <[email protected]> Co-authored-by: Rahul Dogra <[email protected]> Co-authored-by: Armand Philippot <[email protected]> Co-authored-by: James Garbutt <[email protected]> Co-authored-by: matthewp <[email protected]> Co-authored-by: ematipico <[email protected]> Co-authored-by: Pegasus <[email protected]> Co-authored-by: Cameron Smith <[email protected]> Co-authored-by: Martin Trapp <[email protected]> Co-authored-by: Rafael ヤスヒデ須藤 <[email protected]> Co-authored-by: Luiz Ferraz <[email protected]> Co-authored-by: Matthew Phillips <[email protected]> Co-authored-by: HiDeoo <[email protected]> Co-authored-by: Julien Cayzac <[email protected]> Co-authored-by: Drew Powers <[email protected]> Co-authored-by: Emanuele Stoppa <[email protected]> Co-authored-by: MkDev11 <[email protected]> Co-authored-by: andy <[email protected]> Co-authored-by: Luky Setiawan <[email protected]> Co-authored-by: btea <[email protected]> Co-authored-by: cid <[email protected]> Co-authored-by: Simen Sagholen Førrisdal <[email protected]> Co-authored-by: Alex Launi <[email protected]> Co-authored-by: Kedar Vartak <[email protected]> Co-authored-by: Matthew Phillips <[email protected]>

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> Co-authored-by: Emanuele Stoppa <[email protected]> Co-authored-by: Matt Kane <[email protected]> Co-authored-by: Matthew Phillips <[email protected]> Co-authored-by: Matthew Phillips <[email protected]> Co-authored-by: Florian Lefebvre <[email protected]> Co-authored-by: Erika <[email protected]> Co-authored-by: Sarah Rainsberger <[email protected]> Co-authored-by: Armand Philippot <[email protected]> Co-authored-by: matthewp <[email protected]> Co-authored-by: florian-lefebvre <[email protected]> Co-authored-by: ematipico <[email protected]> Co-authored-by: Luiz Ferraz <[email protected]> Co-authored-by: HiDeoo <[email protected]> Co-authored-by: Princesseuh <[email protected]> Co-authored-by: Chris Swithinbank <[email protected]> Co-authored-by: Antony Faris <[email protected]> Co-authored-by: Erika <[email protected]> Co-authored-by: Houston (Bot) <[email protected]> Co-authored-by: Florian Lefebvre <[email protected]> Co-authored-by: Volpeon <[email protected]> Co-authored-by: Martin Trapp <[email protected]> Co-authored-by: fkatsuhiro <[email protected]> Co-authored-by: Oliver Speir <[email protected]> Co-authored-by: Andreas Deininger <[email protected]> Co-authored-by: Roman <[email protected]> Co-authored-by: fabon <[email protected]> Co-authored-by: Raanelom <[email protected]> Co-authored-by: Rahul Dogra <[email protected]> Co-authored-by: James Garbutt <[email protected]> Co-authored-by: Pegasus <[email protected]> Co-authored-by: Cameron Smith <[email protected]> Co-authored-by: Martin Trapp <[email protected]> Co-authored-by: Rafael ヤスヒデ須藤 <[email protected]> Co-authored-by: Matthew Phillips <[email protected]> Co-authored-by: Julien Cayzac <[email protected]> Co-authored-by: Drew Powers <[email protected]> Co-authored-by: Emanuele Stoppa <[email protected]> Co-authored-by: MkDev11 <[email protected]> Co-authored-by: andy <[email protected]> Co-authored-by: Luky Setiawan <[email protected]> Co-authored-by: btea <[email protected]> Co-authored-by: cid <[email protected]> Co-authored-by: Simen Sagholen Førrisdal <[email protected]> Co-authored-by: Alex Launi <[email protected]> Co-authored-by: Kedar Vartak <[email protected]> Co-authored-by: yy <[email protected]> Co-authored-by: Matheus Baroni <[email protected]> Co-authored-by: Kevin Brown <[email protected]> fix(ci): Reinstall deps after having published VS Code (#14996) fix(svelte): allow client directives (#15004) fix(assets): Fixes missing format option for svgs in the passthrough service (#14987) fix(deps): update all non-major dependencies (#15020) fix(content-layer): Try a smarter solution to normalize bare image paths in JSON (#15028) fix(astro): assets vite build log (#15034) resolved (#15033) fix: Remote images: Prevent internal caching from interfering with Astro's cache (#14954) fix(deps): update astro adapters (#15084) fix(deps): update all non-major dependencies (#15072) fix(deps): update astro client runtimes (#15085) fix: move ts-plugin node_modules to dist (#15083) fix: components imports paths (#15107) fix(assets): Use Vite's isFileLoadingAllowed to check if a file can be loaded (#15052) fix(vscode): Correctly handle TypeScript blocks ending with types (#15109) fix(svelte): improve Svelte children prop type checking (#15070) fix Firefox e2e tests for playwright 1.57 (#15113) fix(deps): update astro dependencies (#15103) fix: lint vt test (#15114) fix(deps): update language tools (#15104) resolver abstraction (#15111) fix(vue): add HTML attributes to generated TypeScript types (#15016) Fixes #14686 fix(vscode): Don't update @types/vscode automatically (#15131) fix: adjust page warning to only show up in more relevant times (#15127) fix(dev): preserve query params when base path is stripped (#15124) fix(assets): hoist ?? inside JSON.stringify in virtual module codegen (#15140) fix(toolbar): skip image audit for framework components (#15149) Fixes #15048 fix: Accept setCookie from both context and headers (#15152) fix(ci): Move ts-plugin-bundle to node_modules after recreating node_modules (#15156) fix: scripts not rendering with unused Fragment slots (#13847) (#15147) Fix hydration for framework components in MDX slots (#15150) fix(deps): update astro adapters (#15173) fix: fix image 500 error when moving dist directory in standalone Node (#15169) fix: Allow node: prefix for Node builtins for Vercel middleware (#14863) fix: Allow node: prefix for Node builtins for Vercel middleware (#14839)" fix(node): hash URL stripping (#15196) fix(core): add defensive validation for mod.page in App.render (#15148) fix(css): rewrite absolute URLs with base path in dev mode (#14622) Closes #14585 fix(docs): replace outdated Astro docs links (#15199) fix(lint): Move ESLint comment (#15216) fix: update devalue to the latest (#15222) fix(css): prevent CSS double-bundling (#14991) (#15017) Fixes #14991 fix: assets referenced via js chunks are not flagged as orphaned (#14607) fix(build): Prevent duplicate CSS for hydrated client components" (#14612)" Fixes #14252 fix(deps): update astro client runtimes (#15240) fix(deps): update astro adapters (#15243) fix(deps): update astro dependencies (#15241) fix(deps): update dependency prettier to ^3.8.0 (#15244) fix(deps): update all non-major dependencies (#15242) Fix greedy regex in error message markdown rendering (#15230) Fixes #15068 fixes: #15252 fix: prevent font copying when stopping dev server with q+enter (#15178) fix: renovate config typo (#15256) Fixes #15251 fix: typo in comment (#15232) fix(deps): update dependency svelte to v5.46.4 [security] (#15220) fix: add favicon.ico fallbacks to all examples (#15262)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> Co-authored-by: Emanuele Stoppa <[email protected]> Co-authored-by: Matt Kane <[email protected]> Co-authored-by: Matthew Phillips <[email protected]> Co-authored-by: Matthew Phillips <[email protected]> Co-authored-by: Florian Lefebvre <[email protected]> Co-authored-by: Erika <[email protected]> Co-authored-by: Sarah Rainsberger <[email protected]> Co-authored-by: Armand Philippot <[email protected]> Co-authored-by: matthewp <[email protected]> Co-authored-by: florian-lefebvre <[email protected]> Co-authored-by: ematipico <[email protected]> Co-authored-by: Luiz Ferraz <[email protected]> Co-authored-by: HiDeoo <[email protected]> Co-authored-by: Princesseuh <[email protected]> Co-authored-by: Chris Swithinbank <[email protected]> Co-authored-by: Claude Opus 4.5 <[email protected]> Co-authored-by: Antony Faris <[email protected]> Co-authored-by: Erika <[email protected]> Co-authored-by: Houston (Bot) <[email protected]> Co-authored-by: Florian Lefebvre <[email protected]> Co-authored-by: Volpeon <[email protected]> Co-authored-by: Martin Trapp <[email protected]> Co-authored-by: fkatsuhiro <[email protected]> Co-authored-by: Oliver Speir <[email protected]> Co-authored-by: Andreas Deininger <[email protected]> Co-authored-by: Roman <[email protected]> Co-authored-by: fabon <[email protected]> Co-authored-by: Raanelom <[email protected]> Co-authored-by: Rahul Dogra <[email protected]> Co-authored-by: James Garbutt <[email protected]> Co-authored-by: Pegasus <[email protected]> Co-authored-by: Cameron Smith <[email protected]> Co-authored-by: Martin Trapp <[email protected]> Co-authored-by: Rafael ヤスヒデ須藤 <[email protected]> Co-authored-by: Matthew Phillips <[email protected]> Co-authored-by: Julien Cayzac <[email protected]> Co-authored-by: Drew Powers <[email protected]> Co-authored-by: Emanuele Stoppa <[email protected]> Co-authored-by: MkDev11 <[email protected]> Co-authored-by: andy <[email protected]> Co-authored-by: Luky Setiawan <[email protected]> Co-authored-by: btea <[email protected]> Co-authored-by: cid <[email protected]> Co-authored-by: Simen Sagholen Førrisdal <[email protected]> Co-authored-by: Alex Launi <[email protected]> Co-authored-by: Kedar Vartak <[email protected]> Co-authored-by: yy <[email protected]> Co-authored-by: Matheus Baroni <[email protected]> Co-authored-by: Kevin Brown <[email protected]> Co-authored-by: Eric Grill <[email protected]> Co-authored-by: Cameron Pak <[email protected]> Co-authored-by: Tony Narlock <[email protected]> Co-authored-by: John Mortlock <[email protected]> Co-authored-by: Patrick Arlt <[email protected]> Co-authored-by: Mark Ignacio <[email protected]> fix(ci): Reinstall deps after having published VS Code (#14996) fix(svelte): allow client directives (#15004) fix(assets): Fixes missing format option for svgs in the passthrough service (#14987) fix(deps): update all non-major dependencies (#15020) fix(content-layer): Try a smarter solution to normalize bare image paths in JSON (#15028) fix(astro): assets vite build log (#15034) resolved (#15033) fix: Remote images: Prevent internal caching from interfering with Astro's cache (#14954) fix(deps): update astro adapters (#15084) fix(deps): update all non-major dependencies (#15072) fix(deps): update astro client runtimes (#15085) fix: move ts-plugin node_modules to dist (#15083) fix: components imports paths (#15107) fix(assets): Use Vite's isFileLoadingAllowed to check if a file can be loaded (#15052) fix(vscode): Correctly handle TypeScript blocks ending with types (#15109) fix(svelte): improve Svelte children prop type checking (#15070) fix Firefox e2e tests for playwright 1.57 (#15113) fix(deps): update astro dependencies (#15103) fix: lint vt test (#15114) fix(deps): update language tools (#15104) resolver abstraction (#15111) fix(vue): add HTML attributes to generated TypeScript types (#15016) Fixes #14686 fix(vscode): Don't update @types/vscode automatically (#15131) fix: adjust page warning to only show up in more relevant times (#15127) fix(dev): preserve query params when base path is stripped (#15124) fix(assets): hoist ?? inside JSON.stringify in virtual module codegen (#15140) fix(toolbar): skip image audit for framework components (#15149) Fixes #15048 fix: Accept setCookie from both context and headers (#15152) fix(ci): Move ts-plugin-bundle to node_modules after recreating node_modules (#15156) fix: scripts not rendering with unused Fragment slots (#13847) (#15147) Fix hydration for framework components in MDX slots (#15150) fix(deps): update astro adapters (#15173) fix: fix image 500 error when moving dist directory in standalone Node (#15169) fix: Allow node: prefix for Node builtins for Vercel middleware (#14863) fix: Allow node: prefix for Node builtins for Vercel middleware (#14839)" fix(node): hash URL stripping (#15196) fix(core): add defensive validation for mod.page in App.render (#15148) fix(css): rewrite absolute URLs with base path in dev mode (#14622) Closes #14585 fix(docs): replace outdated Astro docs links (#15199) fix(lint): Move ESLint comment (#15216) fix: update devalue to the latest (#15222) fix(css): prevent CSS double-bundling (#14991) (#15017) Fixes #14991 fix: assets referenced via js chunks are not flagged as orphaned (#14607) fix(build): Prevent duplicate CSS for hydrated client components" (#14612)" Fixes #14252 fix(deps): update astro client runtimes (#15240) fix(deps): update astro adapters (#15243) fix(deps): update astro dependencies (#15241) fix(deps): update dependency prettier to ^3.8.0 (#15244) fix(deps): update all non-major dependencies (#15242) Fix greedy regex in error message markdown rendering (#15230) Fixes #15068 fixes: #15252 fix: prevent font copying when stopping dev server with q+enter (#15178) fix: renovate config typo (#15256) Fixes #15251 fix: typo in comment (#15232) fix(deps): update dependency svelte to v5.46.4 [security] (#15220) fix: add favicon.ico fallbacks to all examples (#15262) fix(cli): add .vercel to .gitignore when using astro add vercel (#15185) Closes #15058 fix(fonts): font providers as class instances (#15286) Fix: Remove await from getActionResult JSDoc example (#15304) fix(errors): Only style valid URLs in the error overlay (#15324) fix(fonts): remove getFontBuffer() (#15334)

fix(css): rewrite absolute URLs with base path in dev mode

a4357b2

Fixes CSS url() references to public assets returning 404 in dev mode when base path is configured. Applies URL rewriting after preprocessCSS() using Vite's cssUrlRE regex pattern. Closes withastro#14585

github-actions bot added the pkg: astro Related to the core `astro` package (scope) label Oct 26, 2025

fix linting error

b762ceb

aprici7y added 2 commits October 30, 2025 13:47

add changeset

f33f2c9

fix spelling in changeset

bbc1c54

everdimension reviewed Oct 30, 2025

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florian-lefebvre requested a review from matthewp November 24, 2025 10:33

Merge branch 'main' into fix/css-base-path-dev

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ematipico approved these changes Nov 27, 2025

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Update packages/astro/test/units/compile/css-base-path.test.js

6a1fdb2

Princesseuh added 2 commits January 15, 2026 15:55

Merge branch 'main' into fix/css-base-path-dev

caf38e1

fix: experimental

39722ac

Princesseuh merged commit 9b35c62 into withastro:main Jan 15, 2026
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astrobot-houston mentioned this pull request Jan 15, 2026

[ci] release #15188

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Princesseuh mentioned this pull request Jan 15, 2026

Unreasonable error messages about base configuration #14258

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fix(css): rewrite absolute URLs with base path in dev mode #14622

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fix(css): rewrite absolute URLs with base path in dev mode #14622

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