Can't async jquery

templates/base.html

@@ -21,7 +21,7 @@
     {% block css %}
     {% endblock %}
 
-    <script src="{% static 'js/jpop.js' %}" async></script>
+    <script src="{% static 'js/jpop.js' %}"></script>
     {% block preload_js %}
     {% endblock %}