Merge pull request #2 from magento-research/bug/stream-responses

Fix Stream Responses

Author: bbatsche

app/code/Magento/UpwardConnector/Controller/Upward.php

@@ -12,6 +12,7 @@
 use Magento\Framework\App\ResponseInterface;
 use Magento\Framework\HTTP\PhpEnvironment\Response;
 use Magento\Upward\Controller as UpwardController;
+use Zend\Http\Response\Stream;
 
 class Upward implements FrontControllerInterface
 {
@@ -47,9 +48,10 @@ public function dispatch(RequestInterface $request)
     {
         /** @var \Zend\Http\Response $upwardResponse */
         $upwardResponse = ($this->upwardController)();
+        $content = $upwardResponse instanceof Stream ? $upwardResponse->getBody() : $upwardResponse->getContent();
         $this->response->setHeaders($upwardResponse->getHeaders());
         $this->response->setStatusCode($upwardResponse->getStatusCode());
-        $this->response->setContent($upwardResponse->getContent());
+        $this->response->setContent($content);
         return $this->response;
     }
 }