diff -r 24dc4fe0c9a4 -r 24e4aba394bf src_js/iconolab-bundle/webpack.config.js
--- a/src_js/iconolab-bundle/webpack.config.js	Tue Sep 20 15:57:42 2016 +0200
+++ b/src_js/iconolab-bundle/webpack.config.js	Wed Sep 21 11:58:24 2016 +0200
@@ -49,7 +49,7 @@
     historyApiFallback: true,
     noInfo: true
   },
-  devtool: '#eval-source-map'
+  devtool: '#source-map'
 }
 
 if (process.env.NODE_ENV === 'production') {