Bugfix for links with reverse proxy and shelfs

cps/templates/shelf.html

@@ -6,6 +6,7 @@
   <a href="{{ url_for('delete_shelf', shelf_id=shelf.id) }}" class="btn btn-danger">{{ _('Delete this Shelf') }} </a>
   <a href="{{ url_for('edit_shelf', shelf_id=shelf.id) }}" class="btn btn-primary">{{ _('Edit Shelf name') }} </a>
   <a href="{{ url_for('order_shelf', shelf_id=shelf.id) }}" class="btn btn-primary">{{ _('change order') }} </a>
+  
   {% endif %}
   <div class="row">