add

app/Http/Api/NotifyUrlController.php

@@ -27,7 +27,6 @@ class NotifyUrlController extends HttpBaseController
 
         //2. 发起API调用
         $parameters = Request::all();
-        unset($parameters['s']);
         try {
             if (Alipay::payment()->common()->verifyNotify($parameters)) {
                 //更新订单