This hits the exceptions in https://github.com/openstack/oslo.middleware/blob/master/oslo_middleware/cors.py#L382
Have you tried config option 'allow_headers' in https://github.com/openstack/oslo.middleware/blob/master/oslo_middleware/cors.py#L50 ?
This hits the exceptions in https:/ /github. com/openstack/ oslo.middleware /blob/master/ oslo_middleware /cors.py# L382
Have you tried config option 'allow_headers' in https:/ /github. com/openstack/ oslo.middleware /blob/master/ oslo_middleware /cors.py# L50 ?