private function push($allow, $excepted)
    {
        if ($excepted === null) {
            $excepted = '*';
        }

        $this->response->addHeader($allow, $excepted);

        return $this;
    }
private function push($allow, $excepted)
    {
        if ($excepted === null) {
            $excepted = '*';
        }

        $this->response->addHeader($allow, $excepted);

        return $this;
    }
private function push ( $ allow , $ excepted ) { if ( $ excepted === null ) { $ excepted = '*' ; } $ this -> response -> addHeader ( $ allow , $ excepted ) ; return $ this ; }
The access control

@param string $allow
@param string $excepted
@return $this
The access control