diff --git a/app/middleware/CrossDomain.php b/app/middleware/CrossDomain.php
index f13101e..e4cff47 100644
--- a/app/middleware/CrossDomain.php
+++ b/app/middleware/CrossDomain.php
@@ -37,6 +37,7 @@ class CrossDomain implements MiddlewareInterface
             'Access-Control-Allow-Origin' => $request->header('origin', '*'),
             'Access-Control-Allow-Methods' => $request->header('access-control-request-method', '*'),
             'Access-Control-Allow-Headers' => $request->header('access-control-request-headers', '*'),
+            'Vary'                             => 'Origin' // 避免缓存干扰
         ]);
 
         return $response;