diff --git a/wchat/common/HttpClient.php b/wchat/common/HttpClient.php
index 6fd10fe..341022a 100644
--- a/wchat/common/HttpClient.php
+++ b/wchat/common/HttpClient.php
@@ -578,6 +578,9 @@ class HttpClient
 		$this->setHeaders([]);
 
 		if ($this->callback !== NULL) {
+
+			var_dump($_data);exit;
+
 			$result = call_user_func($this->callback, $body, $_data, $header);
 			$this->setCallback(null);