diff --git a/app.vue b/app.vue
index a6bf96c..7635796 100644
--- a/app.vue
+++ b/app.vue
@@ -701,7 +701,7 @@ export default {
         const determineIsLogin = () => {
             let count = 0;
             let timer = setInterval(() => {
-                if (Object.keys(window["userInfoWin"]).length !== 0) {
+                if (window["userInfoWin"] && Object.keys(window["userInfoWin"]).length !== 0) {
                     clearInterval(timer);
                     user.value = window["userInfoWin"];
                     if (window["userInfoWin"]["uid"] || window["userInfoWin"]["uin"]) isNeedLogin.value = false;