diff --git a/webpack.config.js b/webpack.config.js
index ee141462..2c353699 100755
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -60,12 +60,14 @@ var config = {
   },
   plugins: [
     new HtmlWebpackPlugin({
+      scriptLoading: 'blocking',
       filename: 'OZ_main.html',
       // This template contains the script tags refering to the js files generated by
       // the webpack compile command
       template: OZTreeModule_src('OZ_script_template.html')
     }),
     new HtmlWebpackPlugin({
+      scriptLoading: 'blocking',
       filename: 'OZui.html',
       chunks: ['OZui'],
       // This template contains the script tags refering to the js files generated by