add default metrics path in project_detail_exporters.html
<tr>
<td>{{ exporter.job }}</td>
<td>{{ exporter.port }}</td>
- <td>{{ exporter.path }}</td>
+ <td>{{ exporter.path | default:"/metrics" }}</td>
<td style="white-space: nowrap">
<form method="post" action="{% url 'exporter-toggle' exporter.id %}" style="display: inline">
{% csrf_token %}
