diff --git a/src/aphront/configuration/AphrontDefaultApplicationConfiguration.php b/src/aphront/configuration/AphrontDefaultApplicationConfiguration.php
index 753fffef3a..de64e1efbf 100644
--- a/src/aphront/configuration/AphrontDefaultApplicationConfiguration.php
+++ b/src/aphront/configuration/AphrontDefaultApplicationConfiguration.php
@@ -137,6 +137,7 @@ class AphrontDefaultApplicationConfiguration
       $response->setErrorInfo($ex->getMessage());
 
       return id(new AphrontJSONResponse())
+        ->setAddJSONShield(false)
         ->setContent($response->toDictionary());
     }