avoid mutating userDefinedWebpackConfig.plugins inside webpack conf…

…iguration routine
skpm · Oct 12, 2017 · 636514a · 636514a
1 parent 791429d
commit 636514a
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/lib/utils/webpackConfig.js b/lib/utils/webpackConfig.js
@@ -163,7 +163,10 @@ module.exports = function getWebpackConfig(
   ) {
     const basename = path.basename(file)
 
-    let plugins = userDefinedWebpackConfig.plugins || []
+    let plugins = []
+    if (userDefinedWebpackConfig.plugins) {
+      plugins = [...plugins, ...userDefinedWebpackConfig.plugins]
+    }
 
     if (commandIdentifiers) {
       plugins.push(