Event.response.status_code can't be changed on postprocessing script

Server-Side Scripting
1

Hi dudes!

On a postprocessing script somthing like:

               $event["response"]["content"]["resource"][0] = array(
                    "id"        =>   421,
                    "WARN1"      => "blah blah"
                );
                $event["response"]["content_changed"] = true;

But:

               $event["response"]["status_code"]=203;
                $event["response"]["content_changed"] = true;

doesn’t work

               $event["response"]["status_code"]=203;
                $event["response"]["status_code"]["content_changed"] = true;

no more.

Is it a API bug or somthing i do wrong?

Thanks