use csrfcookieretry only on event index page

src/pretix/presale/templates/pretixpresale/event/base.html

@@ -26,7 +26,6 @@
     {% if event.settings.google_site_verification %}
         <meta name="google-site-verification" content="{{ event.settings.google_site_verification }}" />
     {% endif %}
-    <script type="text/javascript" src="{% static "pretixpresale/js/csrfcookieretry.js" %}"></script>
     {{ block.super }}
 {% endblock %}
 {% block above %}

src/pretix/presale/templates/pretixpresale/event/index.html

@@ -39,6 +39,7 @@
     {% else %}
         <meta property="og:url" content="{% abseventurl request.event "presale:event.index" %}" />
     {% endif %}
+    <script type="text/javascript" src="{% static "pretixpresale/js/csrfcookieretry.js" %}"></script>
 {% endblock %}
 {% block content %}