From 49471e845eac3ba1e19c182574b23239b83bdf1d Mon Sep 17 00:00:00 2001
From: neverland <chenjiahan@youzan.com>
Date: Sat, 12 Oct 2019 16:31:36 +0800
Subject: [PATCH] fix: router err maybe undefined (#4704)

---
 src/utils/router.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/utils/router.ts b/src/utils/router.ts
index 6bc9e771f..4c1e4d543 100644
--- a/src/utils/router.ts
+++ b/src/utils/router.ts
@@ -20,7 +20,7 @@ export function route(router: VueRouter, config: RouteConfig) {
     if (promise && promise.catch) {
       promise.catch(err => {
         /* istanbul ignore if */
-        if (err.name !== 'NavigationDuplicated') {
+        if (err && err.name !== 'NavigationDuplicated') {
           throw err;
         }
       });