{% block no_container_content %}{% endblock %}
{% comment %}
this exists so that if there is an error in oTree's channel consumers,
such as data export or rooms, the user gets some notification rather than it silently
failing.
don't put it in global base template even though it could be useful there too,
because we don't want to pollute "view source"
in user-defined pages
{% endcomment %}
{% endblock body_main %}