npx @astrojs/upgrade && npm update

Author: stasadev

astro.config.mjs

@@ -15,7 +15,7 @@ export default defineConfig({
   site: "https://ddev.com",
   vite: {
     server: {
-      allowedHosts: true, // leave this unchanged for DDEV!
+      allowedHosts: ["." + process.env.DDEV_TLD], // leave this unchanged for DDEV!
     },
     // Configure CORS for the dev server (security)
     cors: { origin: process.env.DDEV_PRIMARY_URL },