ExtensionManager should get 'on_load_failture_callback' argument with function which will raise some custom "CannotLoadExtensionError" or something.
[0] https://github.com/openstack/fuel-web/blob/master/nailgun/nailgun/extensions/manager.py#L38-L39
ExtensionManager should get 'on_load_ failture_ callback' argument with function which will raise some custom "CannotLoadExte nsionError" or something.
[0] https:/ /github. com/openstack/ fuel-web/ blob/master/ nailgun/ nailgun/ extensions/ manager. py#L38- L39