Fix Astro 7 on StackBlitz by requiring rolldown 1.2.10

.changeset/stackblitz-rolldown-wasm-binding.md

@@ -0,0 +1,5 @@
+---
+'astro': patch
+---
+
+Fixes Astro on StackBlitz and other WebContainer environments

knip.js

@@ -87,6 +87,9 @@ export default {
 				// Optional peer dep: dynamically imported in config validation for the legacy
 				// remark/rehype pipeline. Knip flags it because it's referenced from source.
 				'@astrojs/markdown-remark',
+				// Not imported directly: pins a minimum version of Vite's rolldown dependency
+				// (>=1.2.10 fixes WebContainers). Remove once Vite requires it.
+				'rolldown',
 			],
 		},
 		'packages/astro-prism': {

packages/astro/package.json

@@ -162,6 +162,7 @@
     "package-manager-detector": "^1.6.0",
     "piccolore": "^0.1.3",
     "picomatch": "^4.0.4",
+    "rolldown": "^1.2.10",
     "shiki": "^4.0.2",
     "smol-toml": "^1.8.0",
     "svgo": "^4.1.0",

pnpm-workspace.yaml

@@ -44,6 +44,9 @@ minimumReleaseAgeExclude:
   - '@flue/*'
   - '@astrojs/*'
   - '@cloudflare/*'
+  - rolldown
+  - '@rolldown/*'
+  - '@oxc-project/types'
   # Docs smoke test (smoke/docs) installs @lunariajs/core from withastro/docs
   - '@lunariajs/*'
   - workerd