origin constant
origin [Expects: http://www.w3.org/ns/auth/acl#Origin]
A web application, identified by its Origin, such as scripts.example.com, being given the right. When a user of the web application at a certain origin accesses the server, then the browser sets the Origin: header to warn that a possibly untrusted webapp is being used. Then, BOTH the user AND the origin must have the required access.
Can be used on: http://www.w3.org/ns/auth/acl#Authorization
Implementation
static const origin = IriTerm.prevalidated(
'http://www.w3.org/ns/auth/acl#origin',
);