From 3239ed9819d669d6c5739996a56e4801e2145bf1 Mon Sep 17 00:00:00 2001
From: renhang <renhang@pindou.com>
Date: Thu, 25 May 2017 18:32:59 +0800
Subject: [PATCH] backTop

---
 src/components/back-top/back-top.vue | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/components/back-top/back-top.vue b/src/components/back-top/back-top.vue
index 4ea7cfbb..482397d7 100644
--- a/src/components/back-top/back-top.vue
+++ b/src/components/back-top/back-top.vue
@@ -67,7 +67,8 @@
                 this.backTop = window.pageYOffset >= this.height;
             },
             back () {
-                scrollTop(window, document.body.scrollTop, 0, this.duration);
+                let scrollTop = document.documentElement.scrollTop||document.body.scrollTop;
+                scrollTop(window, scrollTop, 0, this.duration);
                 this.$emit('on-click');
             }
         }