check if response from guzzle is a array

Author: 0x46616c6b

src/EtherpadLite/Response.php

@@ -20,8 +20,10 @@ public function __construct(\Guzzle\Http\Message\Response $response)
         if ($response->isSuccessful()) {
             $this->response = $response->json();
 
-            foreach ($this->response as $key => $value) {
-                $this->response[$key] = $value;
+            if (is_array($this->response)) {
+                foreach ($this->response as $key => $value) {
+                    $this->response[$key] = $value;
+                }
             }
         } else {
             // TODO: Error handling
@@ -61,4 +63,4 @@ public function getResponse()
     {
         return $this->response;
     }
-}
+}