def test_del_domain_and_update(self):
        """
        Delete and update
        """
        self.init_app()
        realmdomain = self.rand_realmdomain()
>       self.prepare_dns_zone(realmdomain)
test_webui/test_realmdomains.py:471: 
...
E       selenium.common.exceptions.StaleElementReferenceException: Message: The element reference of <button class="close" type="button"> is stale; either the element is no longer attached to the DOM, it is not in the current frame context, or the document has been refreshed