app/bundles/InstallBundle/Resources/views/Install/content.html.twig

{#
    @copyright   2014 Mautic Contributors. All rights reserved
    @author      Mautic
    @link        http://mautic.org
    @license     GNU/GPLv3 http://www.gnu.org/licenses/gpl-3.0.html
#}

{% if not app.getRequest().isXmlHttpRequest() and (false == slot('contentOnly', false)) %}
    {% extends '@MauticInstall/Install/base.html.twig' %}
{% endif %}

{% block content %}

{{ parent() }}

{% endblock %}