symfony
diff --git a/‎src/Symfony/Component/HttpFoundation/StreamedResponse.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpFoundation/StreamedResponse.php
+4-4Lines changed: 4 additions & 4 deletions b/‎src/Symfony/Component/HttpFoundation/StreamedResponse.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpFoundation/StreamedResponse.php
+4-4Lines changed: 4 additions & 4 deletions
@@ -45,6 +45,10 @@ public function __construct($callback, $status = 200, $headers = array())
         parent::__construct(null, $status, $headers);
 
         $this->callback = $callback;
+        if (!is_callable($this->callback)) {
+            throw new \LogicException('The Response callback must be a valid PHP callable.');
+        }
+
         $this->streamed = false;
     }
 
@@ -76,10 +80,6 @@ public function sendContent()
 
         $this->streamed = true;
 
-        if (!is_callable($this->callback)) {
-            throw new \LogicException('The Response callback is not a valid PHP callable.');
-        }
-
         call_user_func($this->callback);
     }