The spec here still shows 204 return code for HEAD calls -
https://github.com/openstack-attic/identity-api/blob/master/v3/src/markdown/identity-api-v3.md
The spec here still shows 204 return code for HEAD calls -
https:/ /github. com/openstack- attic/identity- api/blob/ master/ v3/src/ markdown/ identity- api-v3. md