diff --git a/application/controllers/infofix.php b/application/controllers/infofix.php
index 6bf4e364..fe6066f5 100644
--- a/application/controllers/infofix.php
+++ b/application/controllers/infofix.php
@@ -138,7 +138,14 @@ class infofix extends CI_Controller
     $is_id = $keyArr[3];
 
     // 容错2
-    if (empty($ic_id) || empty($is_id) || empty($newStr) || empty($oldStr)) {
+    if (
+      empty($ic_id) ||
+      empty($is_id) ||
+      empty($newStr) ||
+      empty($oldStr) ||
+      mb_stripos($newStr, '/') === false ||
+      mb_stripos($oldStr, '/') === false
+    ) {
       echo json_encode(array());
       return false;
     }