Fixes #8947: Retain filter parameters when handling an export template exception

docs/release-notes/version-3.1.md

@@ -18,6 +18,7 @@
 * [#8924](https://github.com/netbox-community/netbox/issues/8924) - Improve load time of custom script list
 * [#8932](https://github.com/netbox-community/netbox/issues/8932) - Fix error when setting null value for interface `rf_role` via REST API
 * [#8935](https://github.com/netbox-community/netbox/issues/8935) - Correct ordering of next/previous racks to use naturalized names
+* [#8947](https://github.com/netbox-community/netbox/issues/8947) - Retain filter parameters when handling an export template exception
 * [#8951](https://github.com/netbox-community/netbox/issues/8951) - Allow changing device type & platform to different manufacturer simultaneously
 
 ---

netbox/netbox/views/generic.py

@@ -212,7 +212,10 @@ class ObjectListView(ObjectPermissionRequiredMixin, View):
             return template.render_to_response(self.queryset)
         except Exception as e:
             messages.error(request, f"There was an error rendering the selected export template ({template.name}): {e}")
-            return redirect(request.path)
+            # Strip the `export` param and redirect user to the filtered objects list
+            query_params = request.GET.copy()
+            query_params.pop('export')
+            return redirect(f'{request.path}?{query_params.urlencode()}')
 
     def get(self, request):
         model = self.queryset.model