diff --git a/packages/vite/src/node/plugins/css.ts b/packages/vite/src/node/plugins/css.ts
index e5e0e96bd50134..09cc44803d8c90 100644
--- a/packages/vite/src/node/plugins/css.ts
+++ b/packages/vite/src/node/plugins/css.ts
@@ -1538,7 +1538,7 @@ function cleanScssBugUrl(url: string) {
   if (
     // check bug via `window` and `location` global
     typeof window !== 'undefined' &&
-    typeof location !== 'undefined'
+    typeof location?.href === 'string'
   ) {
     const prefix = location.href.replace(/\/$/, '')
     return url.replace(prefix, '')