Fix dev-mode styles missing from content collection entries#16702
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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)) | [`6.3.7` → `6.3.8`](https://renovatebot.com/diffs/npm/astro/6.3.7/6.3.8) |  |  | --- ### Release Notes <details> <summary>withastro/astro (astro)</summary> ### [`v6.3.8`](https://github.com/withastro/astro/blob/HEAD/packages/astro/CHANGELOG.md#638) [Compare Source](https://github.com/withastro/astro/compare/astro@6.3.7...astro@6.3.8) ##### Patch Changes - [#​16830](withastro/astro#16830) [`f2bf3cb`](withastro/astro@f2bf3cb) Thanks [@​matthewp](https://github.com/matthewp)! - Fixes 404s for dynamically imported JS chunks when using an adapter with `assetQueryParams` (e.g. Vercel skew protection) - [#​16831](withastro/astro#16831) [`ace96ba`](withastro/astro@ace96ba) Thanks [@​astrobot-houston](https://github.com/astrobot-houston)! - Fixes a misleading `GetStaticPathsRequired` error when a redirect is configured from a dynamic route to a static (or less-dynamic) destination. For example, `'/project/[slug]': '/'` previously produced a confusing error pointing at `index.astro`. Astro now detects the parameter mismatch at config validation time and throws a clear `InvalidRedirectDestination` error naming the missing parameters. - [#​16702](withastro/astro#16702) [`b7d1758`](withastro/astro@b7d1758) Thanks [@​matthewp](https://github.com/matthewp)! - Fixes scoped styles from `.astro` components being dropped when rendered inside MDX content (`<Content />` from `render(entry)`) passed through a named slot using `<Fragment slot="X">`. The Fragment component now eagerly evaluates its slot contents to ensure propagating components register their styles before head content is flushed. - [#​16823](withastro/astro#16823) [`3df6a45`](withastro/astro@3df6a45) Thanks [@​astrobot-houston](https://github.com/astrobot-houston)! - Fixes missing CSS for conditionally rendered Svelte components in production builds - [#​16836](withastro/astro#16836) [`3d7adfa`](withastro/astro@3d7adfa) Thanks [@​LongYC](https://github.com/LongYC)! - Document compressHTML: "jsx" config is only available since Astro v6.2.0 - [#​16864](withastro/astro#16864) [`334ce13`](withastro/astro@334ce13) Thanks [@​cheets](https://github.com/cheets)! - Fixes a false-positive `Internal Warning: route cache overwritten` logged on every SSR request for dynamic routes </details> --- ### Configuration 📅 **Schedule**: (UTC) - 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. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4xOTUuNiIsInVwZGF0ZWRJblZlciI6IjQzLjE5NS42IiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6W119-->
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Changes
?astroPropagatedAssets) are now collected at render time instead of being baked into the module at transform time. The old approach captured a snapshot of the Vite module graph during the transform hook — if the graph was incomplete at that moment, styles were permanently missing. A newdev-style-collector.tsregistry (shared viaglobalThisSymbol.forto bridge the Vite plugin and SSR runner module caches) lets theContentcomponent inruntime.tscallgetStylesForURLfresh on each render.templateDepthguards tohead/maybe-headinstructions incommon.tsso thatmaybeRenderHead()never fires inside an inert<template>element in layouts (e.g. theme-provider icon sprites).Closes #16181
Testing
test/content-collections-dev-css.test.ts— dev server integration test verifying scoped styles from.astrocomponents in MDX content entries are present across multiple collections and with component indirection.test/units/render/inert-head-guard.test.ts— verifiestemplateDepthguard suppresses head rendering inside templates.test/units/render/head-in-template.test.ts— simulates Layout → ThemeProvider →<template>→ Icon pipeline, verifying styles land in<head>.Docs