容错修正

@@ -43,8 +43,10 @@ export default {
         };
 
         const setInterface = () => {
+            if (window.frames['iframe']) {
                 window.frames['iframe'].yohoInterface = window.yohoInterface;
                 window.frames['iframe'].appBaseLogs = window.appBaseLogs;
+            }
         };
 
         this.$bus.$on('after-view-enter', () => {