ObjectStorage is not yet constrained to a particular version of the API. It attempts to use whatever version is passed in to the URL. This is different than IdentityServices and CDN, which use a fixed version.
For some reason, ACL information does not seem to be returned in the JSON data. Need to determine how to get that. As a stop-gap, when a container object returned from here has its ACL requested, it makes an additional round-trip to the server to fetch that data.