Can't understand how to do server response with vibed

[Suliman via Digitalmars-d-learn]

Could anybody help me to understand how to complete HTTP response 
with vibed.

I am sending POST request from AngularJS:

$.post("http://127.0.0.1:8080/my", total_result);
where total_result is JSON string: [{"QID":3,"AID":3}, 
{"SubAID":[4]}, {"MinArea":"10","MaxArea":"90"}]

Handler is look like:

void action(HTTPServerRequest req, HTTPServerResponse res)
{
    // res.statusCode = 201;
}

I know that I can set statusCode like code above, but problem 
that in Chrome console I am getting:
POST http://127.0.0.1:8080/my 404 (Not Found)
How can I pass to it (from vibed to browser) status code?