Izmjenjena struktura, dodan backand

web/node_modules/webpack/buildin/system.js

@@ -0,0 +1,7 @@
+// Provide a "System" global.
+module.exports = {
+	// Make sure import is only used as "System.import"
+	import: function() {
+		throw new Error("System.import cannot be used indirectly");
+	}
+};