Disable comparisons feature in uglify compression in production (#2379)

* Disable a micro-option in uglify that appears to be buggy See facebook/create-react-app#2376 * wrong plugin * Add a comment
wmonk · Aug 7, 2017 · 9114aea · 9114aea
1 parent bfeb950
commit 9114aea
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/packages/react-scripts/config/webpack.config.prod.js b/packages/react-scripts/config/webpack.config.prod.js
@@ -266,6 +266,11 @@ module.exports = {
     new webpack.optimize.UglifyJsPlugin({
       compress: {
         warnings: false,
+        // Disabled because of an issue with Uglify breaking seemingly valid code:
+        // https://github.com/facebookincubator/create-react-app/issues/2376
+        // Pending further investigation:
+        // https://github.com/mishoo/UglifyJS2/issues/2011
+        comparisons: false,
       },
       output: {
         comments: false,