set-property API doesn't work for security.json authentication

[Shamik Bandopadhyay]

Hi,

  I'm trying to update the set-property option in security.json
authentication section. As per the documentation,

"Set  arbitrary properties for authentication plugin. The only supported
property is 'blockUnknown'"

https://cwiki.apache.org/confluence/display/solr/Basic+Authentication+Plugin

Calling the service throws the following exception:
"errorMessages": [
    {
      "set-property": {
        "blockUnknown": true
      },
      "errorMessages": [
        "Unknown operation 'set-property' "
      ]
    }
  ]

Is this a bug or the API is not supported?