formation/templates/formation/url_display.jinja
<div class="data_display {% if field.is_subfield %}sub{% endif %}datum {{ field.get_html_class_name() }}">
<div class="data_display-label">{{ field.get_display_label() }}</div>
{%- if not field.is_empty() %}
<div class="data_display-value">
<a href="{{ field.get_current_value() }}" class="data_display-link" target="_blank">
{{- field.get_display_value() -}}
</a>
</div>
{%- else %}
<div class="data_display-value empty"></div>
{%- endif %}
</div>