<div class="footer-extra">{% block footer_extra %}{% endblock %}</div>
         </footer>
 
-    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
+    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
     {% block extra_script %}{% endblock %}
     {% tracking_code %}
     </body>