Merge pull request #4107 from webpack/bugfix/issue-4086

fixes #4086
webpack · Apr 4, 2017 · 114c2e0 · 114c2e0
2 parents 83ad4b0 + 546fe6d
commit 114c2e0
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/lib/SourceMapDevToolPlugin.js b/lib/SourceMapDevToolPlugin.js
@@ -42,7 +42,7 @@ SourceMapDevToolPlugin.prototype.apply = function(compiler) {
 			chunks.forEach(function(chunk) {
 				chunk.files.filter(ModuleFilenameHelpers.matchObject.bind(undefined, options)).map(function(file) {
 					var asset = this.assets[file];
-					if(asset.__SourceMapDevToolData) {
+					if(asset.__SourceMapDevToolFile === file && asset.__SourceMapDevToolData) {
 						var data = asset.__SourceMapDevToolData;
 						for(var cachedFile in data) {
 							this.assets[cachedFile] = data[cachedFile];
@@ -123,6 +123,7 @@ SourceMapDevToolPlugin.prototype.apply = function(compiler) {
 				}
 				sourceMap.sourceRoot = options.sourceRoot || "";
 				sourceMap.file = file;
+				asset.__SourceMapDevToolFile = file;
 				asset.__SourceMapDevToolData = {};
 				var currentSourceMappingURLComment = sourceMappingURLComment;
 				if(currentSourceMappingURLComment !== false && /\.css($|\?)/i.test(file)) {