* Response represents an HTTP response in JSON format.
* Note that this class does not force the returned JSON content to be an
* object. It is however recommended that you do return an object as it
* @see https://www.owasp.org/index.php/OWASP_AJAX_Security_Guidelines#Always_return_JSON_with_an_Object_on_the_outside
* @author Igor Wiedler <firstname.lastname@example.org>
protected $encodingOptions = JSON_HEX_TAG;