Expose route asset URLs on middleware context (v5 backport)

[matthewp]

Changes

Backport of #16793 to v5.

• Adds context.styles, context.scripts, and context.links to APIContext:
  • styles — inline CSS strings
  • links — external stylesheet URLs (resolved with base/assetsPrefix)
  • scripts — external script URLs (resolved with base/assetsPrefix)

Testing

• 14 unit tests for the getRouteAssets() pure function.

Docs

• Same as Expose route asset URLs on middleware context #16793 — docs update needed for the three new APIContext properties.

[changeset-bot]

🦋 Changeset detected

Latest commit: 7f3eca3

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

This PR includes changesets to release 448 packages

Name	Type
astro	Minor
@e2e/astro-linked-lib	Patch
@e2e/actions-blog	Patch
@e2e/actions-react-19	Patch
@e2e/astro-component	Patch
@e2e/astro-envs	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/aliases-tsconfig-baseurl-only	Patch
@test/ts-paths-no-baseurl	Patch
@test/aliases-tsconfig	Patch
@test/aliases	Patch
@test/api-routes	Patch
@test/asset-url-base	Patch
@test/astro-pages	Patch
@test/astro-assets-dir	Patch
@test/astro-assets-prefix	Patch
@test/astro-assets	Patch
@test/astro-attrs	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-class-list	Patch
@test/astro-client-only	Patch
@test/astro-component-bundling	Patch
@test/astro-component-code	Patch
@test/astro-components	Patch
@test/astro-cookies	Patch
@test/astro-css-bundling-nested-layouts	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-external-files	Patch
@test/astro-fallback	Patch
@test/astro-generator	Patch
@test/astro-get-static-paths	Patch
@test/astro-global	Patch
@test/astro-head	Patch
@test/astro-info-versions	Patch
@test/astro-jsx	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-normal	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-object-style	Patch
@test/astro-page-directory-url	Patch
@test/astro-pagination-root	Patch
@test/astro-pagination	Patch
@test/astro-partial-html	Patch
@test/astro-preview-headers	Patch
@test/astro-public	Patch
@test/astro-response	Patch
@test/astro-scripts	Patch
@test/astro-sitemap-rss	Patch
@test/astro-slots-nested	Patch
@test/astro-slots	Patch
@test/concurrency	Patch
@test/build-readonly-file	Patch
@test/client-address-node	Patch
@test/client-address	Patch
@test/code-component	Patch
@test/component-library	Patch
@test/config-host	Patch
@test/config-path	Patch
@test/config-vite-css-target	Patch
@test/config-vite	Patch
@test/react-container	Patch
@test/content-with-spaces-in-folder-name	Patch
@example/content-collection-references	Patch
@test/content-collections-base	Patch
@test/content-collections-cache-invalidation	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-same-contents	Patch
@test/content-collections-with-config-mjs	Patch
@test/content-collections-with-config-mts	Patch
@test/content-collections	Patch
@test/content-intellisense	Patch
@test/content-layer-markdoc	Patch
@test/content-layer-remark-plugins	Patch
@test/content-layer-rendering	Patch
@test/content-layer	Patch
@test/content-ssr-integration	Patch
@test/content-static-paths-integration	Patch
@test/content	Patch
@test/core-image-base	Patch
@test/core-image-data-url	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-remark-imgattr	Patch
@test/core-image-ssg	Patch
@test/core-image-ssr	Patch
@test/core-image-svg-in-client	Patch
@test/core-image-svg-optimized	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/csrf	Patch
@test/css-assets	Patch
@test/css-dangling-references	Patch
@test/css-deduplication	Patch
@test/css-double-bundle	Patch
@test/css-import-as-inline	Patch
@test/css-inline-stylesheets-2	Patch
@test/css-inline-stylesheets-3	Patch
@test/css-inline-stylesheets	Patch
@test/css-no-code-split	Patch
@test/custom-404-html	Patch
@test/custom-404-injected-from-dep	Patch
@test/custom-404-injected	Patch
@test/custom-404-locals	Patch
@test/custom-404-loop-case-1	Patch
@test/custom-404-loop-case-2	Patch
@test/custom-404-loop-case-3	Patch
@test/custom-404-loop-case-4	Patch
@test/custom-404-loop-case-5	Patch
@test/custom-404-md	Patch
@test/custom-404-pkg	Patch
@test/custom-404	Patch
@test/custom-500-failing	Patch
@test/custom-500-middleware	Patch
@test/custom-500	Patch
@test/custom-assets-name	Patch
custom-fetch-error-pages	Patch
@test/custom-renderer	Patch
@test/data-collections-schema	Patch
@test/data-collections	Patch
@test/debug-component	Patch
@test/dynamic-endpoint-collision	Patch
@test/dynamic-route-build-file	Patch
@test/dynamic-route-collision	Patch
@test/entry-file-names	Patch
@test/error-bad-js	Patch
@test/error-build-location	Patch
@test/error-non-error	Patch
@test/extension-matching	Patch
@test/feature-support-message-suppresion	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-injection	Patch
@test/hmr-css	Patch
@test/hoisted-imports	Patch
@test/html-component	Patch
@test/html-escape-bug	Patch
@test/html-escape	Patch
@test/html-page	Patch
@test/html-slots	Patch
@test/hydration-race	Patch
@test/i18n-double-prefix	Patch
@test/i18n-locale-index-format-file	Patch
@test/i18n-routing-base	Patch
@test/i18n-routing-dynamic	Patch
@test/i18n-routing-fallback-index	Patch
@test/i18n-routing-fallback-rewrite-filename	Patch
@test/i18n-routing-fallback-rewrite-hybrid	Patch
@test/i18n-routing-fallback-rewrite	Patch
@test/i18n-routing-fallback	Patch
@test/i18n-manual-with-default-middleware	Patch
@test/i18n-routing-manual	Patch
@test/i18n-routing-prefix-always	Patch
@test/i18n-routing-prefix-other-locales	Patch
@test/i18n-routing-preferred-language	Patch
@test/i18n-routing-subdomain	Patch
@test/i18n-routing	Patch
@test/i18n-server-island	Patch
@test/import-ts-with-js	Patch
@test/impostor-md-file	Patch
@test/integration-add-page-extension	Patch
@test/integration-server-setup	Patch
@test/large-array-solid	Patch
@test/legacy-content-collections	Patch
@test/legacy-data-collections	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-request-clone	Patch
@test/middleware-sequence-rewrite	Patch
@test/middleware-ssg	Patch
@test/middleware-tailwind	Patch
@test/middleware-virtual	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	Patch
@test/passthrough-image-service	Patch
@test/postcss	Patch
@test/preact-compat-component	Patch
@test/preact-component	Patch
@test/public-base-404	Patch
@test/redirects-i18n	Patch
@test/ssr-redirect	Patch
@test/remote-css	Patch
@test/request-signal	Patch
@test/reroute	Patch
@test/reuse-injected-entrypoint	Patch
@test/rewrite-custom-404	Patch
@test/rewrite-dynamic-routing	Patch
@test/rewrite-i18n-manual-routing	Patch
@test/rewrite-issue13633	Patch
@test/rewrite-route-pattern	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/route-manifest	Patch
@test/routing-priority	Patch
@test/scoped-style-strategy	Patch
@test/server-islands-hybrid	Patch
@test/server-islands-ssr	Patch
@test/sessions	Patch
@test/set-html	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-env	Patch
@test/ssr-api-route-custom-404	Patch
@test/ssr	Patch
@test/ssr-locals	Patch
@test/ssr-manifest	Patch
@test/ssr-markdown	Patch
@test/ssr-params	Patch
@test/ssr-partytown	Patch
@test/ssr-prerender-chunks	Patch
@test/ssr-prerender-get-static-paths	Patch
@test/ssr-prerender	Patch
@test/ssr-preview	Patch
@test/ssr-request	Patch
@test/ssr-response	Patch
@test/ssr-hoisted-script	Patch
@test/ssr-scripts	Patch
@test/ssr-split-manifest	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/type-imports	Patch
@test/unused-slot	Patch
@test/url-import-suffix	Patch
@test/user-route-priority	Patch
@test/view-transitions	Patch
@test/virtual-astro-file	Patch
@test/vitest	Patch
@test/vue-component	Patch
@test/vue-jsx	Patch
@test/vue-with-multi-renderer	Patch
@test/with-endpoint-routes	Patch
@test/with-subpath-no-trailing-slash	Patch
@test/without-site-config	Patch
@test/db-aliases	Patch
@test/db-db-in-src	Patch
@test/error-handling	Patch
@test/db-integration-only	Patch
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@test/db-no-apptoken	Patch
@test/db-no-seed	Patch
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eventbrite-from-scratch	Patch
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@test/alpinejs-plugin-script-import	Patch
@test/astro-cloudflare-astro-dev-platform	Patch
@test/astro-cloudflare-astro-env	Patch
@test/astro-cloudflare-compile-image-service	Patch
@test/astro-cloudflare-custom-entryfile	Patch
@test/astro-cloudflare-external-image-service	Patch
@test/astro-cloudflare-wasm	Patch
@test/astro-cloudflare-no-output	Patch
@test/astro-cloudflare-routes-json	Patch
@test/astro-cloudflare-with-base	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/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-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-variables	Patch
@test/mdx-css-head-mdx	Patch
@test/image-remark-imgattr	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-error-page	Patch
@test/nodejs-prerender	Patch
@test/nodejs-preview-headers	Patch
@test/redirects	Patch
@test/node-sessions	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-ssr	Patch
@test/sitemap-static	Patch
@test/sitemap-trailing-slash	Patch
conditional-rendering	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	Major
@benchmark/timer	Major
benchmark-build-hybrid	Patch
benchmark-build-server	Patch
benchmark-build-static	Patch

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[github-actions]

This PR is blocked because it contains a minor changeset. A reviewer will merge this at the next release if approved.

[pkg-pr-new]

npm i https://pkg.pr.new/astro@16794

commit: 7f3eca3

[matthewp]

Closing in favor of #16813