Per-client sender-constraint requirement. See Wave 2 Token-binding
Cluster spec §4.8.
When required: true and no binding is presented, the request is
rejected invalid_client. When required: true and a binding is
presented whose kind is not in methods, the request is rejected
unauthorized_client. When required: false, methods is advisory
(no rejection occurs based on it).
Per-client sender-constraint requirement. See Wave 2 Token-binding Cluster spec §4.8.
When
required: trueand no binding is presented, the request is rejectedinvalid_client. Whenrequired: trueand a binding is presented whosekindis not inmethods, the request is rejectedunauthorized_client. Whenrequired: false,methodsis advisory (no rejection occurs based on it).