diff --git a/wchat/common/HttpClient.php b/wchat/common/HttpClient.php
index c88fbd3..723bbd7 100644
--- a/wchat/common/HttpClient.php
+++ b/wchat/common/HttpClient.php
@@ -460,6 +460,7 @@ class HttpClient
 	 */
 	private function coroutine($url, $data = [])
 	{
+		var_dump($this->host, $url);
 		$client = $this->generate_client($this->host, $url, $data);
 		if ($client->statusCode < 0) {
 			throw new \Exception($client->errMsg);