Whoops shouldn't have forgotten that (#1367)

Yea, should not have forgotten that :P

gulp/webpack.production.config.js

@@ -230,6 +230,9 @@ module.exports = ({
                                 { pattern: /globalConfig\.debug/g, replacement: () => "''" },
                             ],
                         }),
+                        {
+                            loader: path.resolve(__dirname, "mod.js"),
+                        },
                     ],
                 },
                 {