The HEAD request to check the existence of an ACL has these elements:
•If you’re accessing the namespace as an authenticated user, an Authorization header
•The URL of the object
•A type=acl URL query parameter
Normally, an ACL applies to all versions of an object. One exception exists: if, while versioning is enabled, an object is deleted and then restored, the current version does not inherit the ACL from the previous version. To check whether a specific version of an object has an ACL, specify this optional URL query parameter:
version=version-id
If you omit the version parameter, HCP checks the current version of the object.
For more information on restoring a deleted object, see Deleting objects with versioning enabled.
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