diff --git a/js/tool.js b/js/tool.js
index 1d90eb8..e2ce093 100644
--- a/js/tool.js
+++ b/js/tool.js
@@ -21,7 +21,7 @@ function deleteAllCookies() {
         var cookie = cookies[i];
         var eqPos = cookie.indexOf("=");
         var name = eqPos > -1 ? cookie.substr(0, eqPos) : cookie;
-        document.cookie = name + "=;expires=Thu, 01 Jan 1970 00:00:00 GMT";
+        document.cookie = name + "=;expires=Thu, 01 Jan 1970 00:00:00 GMT; SameSite=Strict; Secure";
     }
 }