请求授权注册总是unauthorized

**array** _(size=2)_ 0 => string 'Content-Type: application/json' _(length=30)_ 1 => string 'Authorization: Bearer YWMt39RfMMOqEeKYE_GW7tu81AAAAT71lGijyjG4VUIC2AwZGzUjVbPp_4qRD5k' _(length=87)_string '{"error":"unauthorized","timestamp":1429437861295,"duration":1,"exception":"org.apache.usergrid.rest.exceptions.SecurityException","error_description":"registration is not open, please contact the app admin"}'