fixed image path construction

netbox_topology_views/templates/netbox_topology_views/images.html

@@ -42,5 +42,8 @@
 {% endblock content-wrapper %}
 
 {% block javascript %}
-  <script src="{% static 'netbox_topology_views/js/images.js' %}" defer></script>
+<script type="text/javascript">
+  const basePath = '{{ basepath }}';
+</script>
+<script src="{% static 'netbox_topology_views/js/images.js' %}" defer></script>
 {% endblock javascript %}

netbox_topology_views/templates/netbox_topology_views/index.html

@@ -77,6 +77,7 @@
   <script type="text/javascript">
     const brokenImage = '{{ broken_image }}';
     const topologyData = {{ topology_data | safe }};
+    const basePath = '{{ basepath }}';
   </script>
 	<script src="{% static 'netbox_topology_views/js/app.js' %}" defer></script>
 {% endblock javascript %}