From a94aa5bd771c01a8cb8ec6df5796fec139c6cc6c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=99=88=E5=98=89=E6=B6=B5?= <chenjiahan@meituan.com>
Date: Mon, 21 Aug 2017 21:59:06 +0800
Subject: [PATCH] fix: Popup remove watcher

---
 packages/mixins/popup/index.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/packages/mixins/popup/index.js b/packages/mixins/popup/index.js
index 3cea8db79..44700d419 100644
--- a/packages/mixins/popup/index.js
+++ b/packages/mixins/popup/index.js
@@ -169,8 +169,11 @@ export default {
     doAfterClose() {
       this.closing = false;
       PopupManager.closeModal(this._popupId);
-      document.removeEventListener('touchstart', this.recordPosition, false);
-      document.removeEventListener('touchmove', this.watchTouchMove, false);
+
+      if (this.preventScroll) {
+        document.removeEventListener('touchstart', this.recordPosition, false);
+        document.removeEventListener('touchmove', this.watchTouchMove, false);
+      }
     }
   },