[domain@localhost:9999 /] /profile=full-ha-7.1.x/subsystem=security/security-domain=jboss-web-policy/authorization=classic/policy-module=Delegating:write-attribute(name=module-options,value={a=>b})
{
    "outcome" => "failed",
    "failure-description" => {"host-failure-descriptions" => {"slave" => "JBAS010849: Operation write-attribute for address [
    (\"profile\" => \"full-ha-7.1.x\"),
    (\"subsystem\" => \"security\"),
    (\"security-domain\" => \"jboss-web-policy\"),
    (\"authorization\" => \"classic\")
] can only be handled by the master Domain Controller; this host is not the master Domain Controller"}},
    "rolled-back" => true
}