diff --git a/packages/astro/src/vite-plugin-astro-server/route.ts b/packages/astro/src/vite-plugin-astro-server/route.ts
index a54ece17836f..89173a1ecf8d 100644
--- a/packages/astro/src/vite-plugin-astro-server/route.ts
+++ b/packages/astro/src/vite-plugin-astro-server/route.ts
@@ -187,6 +187,7 @@ export async function handleRoute({
 				.some((segment) => {
 					return locales.includes(segment);
 				});
+			// Even when we have `config.base`, the pathname is still `/` because it gets stripped before
 			if (!pathNameHasLocale && pathname !== '/') {
 				return handle404Response(origin, incomingRequest, incomingResponse);
 			}