From db9dde85e9c7e86f16467dbfa2f8c514987b4be2 Mon Sep 17 00:00:00 2001
From: Kyle Shockey <shockey@users.noreply.github.com>
Date: Tue, 10 Jul 2018 17:16:49 -0500
Subject: [PATCH] preserve `GeneratorFunction` instead of all function names

---
 make-webpack-config.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/make-webpack-config.js b/make-webpack-config.js
index c9be0b23..9e98e72a 100644
--- a/make-webpack-config.js
+++ b/make-webpack-config.js
@@ -71,10 +71,13 @@ module.exports = function(rules, options) {
     plugins.push(
       new UglifyJsPlugin({
         uglifyOptions: {
-          mangle: specialOptions.mangle,
+          mangle: specialOptions.mangle ? {
+            reserved: ["GeneratorFunction"]
+          } : false,
+          compress: specialOptions.mangle,
           beautify: !specialOptions.mangle,
-          keep_fnames: true
         },
+        
         sourceMap: true,
       }),
       new webpack.LoaderOptionsPlugin({