fix: empty less file error

vitejs#7411
tyouzu1 · Mar 23, 2022 · 70341bc · 70341bc
1 parent 0cc743b
commit 70341bc
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/packages/vite/src/node/plugins/css.ts b/packages/vite/src/node/plugins/css.ts
@@ -1316,8 +1316,10 @@ const less: StylePreprocessor = async (source, root, options, resolvers) => {
     return { code: '', errors: [normalizedError], deps: [] }
   }
 
-  const map: ExistingRawSourceMap = JSON.parse(result.map)
-  delete map.sourcesContent
+  const map: ExistingRawSourceMap = result.map ? JSON.parse(result.map) : undefined
+  if(map && map.sourcesContent){
+      delete map.sourcesContent;
+  }
 
   return {
     code: result.css.toString(),