resources/views/error.twig
{% extends 'global.twig' %}
{% block wholepage %}
<main>
<h1 class="wholepage">{{ errormessage }}</h1>
</main>
{% if errormessage == "offline" %}
<script>
window.addEventListener('online', function() {
location.reload();
}, false);
</script>
{% endif %}
{% endblock %}