public function handleRequest(SS_HTTPRequest $request, DataModel $model = null) {
            $response = parent::handleRequest($request, $model);
            if ($body = $response->getBody()) {
		$body = self::replaceCDN($body);
                $response->setBody($body);
            }
            return $response;
        }


        static function replaceCDN($body) {
            if (!$body) {
                return;
            }
            $cdn = "//" . S3_BUCKET . ".s3.amazonaws.com/assets"; // or a working cname record
            $myDomain = Director::absoluteBaseURL();
            $body = str_replace('src="assets/', 'src="'.$cdn.'/', $body);
            $body = str_replace('href="assets/', 'href="'.$cdn.'/', $body);
            $body = str_replace($myDomain . 'assets/', $cdn.'/', $body); //absolute links

            return $body;
        }