diff --git a/kolla/node_custom_config/horizon/custom_local_settings b/kolla/node_custom_config/horizon/custom_local_settings
index 62f22296..a3061865 100644
--- a/kolla/node_custom_config/horizon/custom_local_settings
+++ b/kolla/node_custom_config/horizon/custom_local_settings
@@ -177,3 +177,7 @@ OPENSTACK_MANILA_FEATURES = {
     'enable_public_shares': True,
     'enabled_share_protocols': ['NFS'],
 }
+
+# necessary to embed serial console in iframe
+# Django3.0 changed the default from 'SAMEORIGIN' to 'DENY'
+X_FRAME_OPTIONS = 'SAMEORIGIN'
\ No newline at end of file