diff --git a/mobile/blank.php b/mobile/blank.php
index be4746d..82fa77b 100644
--- a/mobile/blank.php
+++ b/mobile/blank.php
@@ -3,7 +3,7 @@
 // 获取上一个页面的 URL
 session_start();
 $referer = $_SESSION['prev_url'];
-unset($_SESSION['prev_url']);
+// unset($_SESSION['prev_url']);
 
 $appid = 'wx79343915f99167e6';
 $appsecret = 'f2f72c5e0ac29c2373bfaf22cf059c02';