Update webpack.prod.conf.js

build/webpack.prod.conf.js

@@ -38,8 +38,8 @@ const webpackConfig = merge(baseWebpackConfig, {
     new webpack.optimize.UglifyJsPlugin({
       compress: {
         warnings: false,
-        drop_debugger: true,
-        drop_console: true
+        drop_debugger: env.debug,
+        drop_console: env.debug
       },
       sourceMap: config.build.productionSourceMap,
       parallel: true