From 4f93c8fb5d141825f359e310581c1d5262acc790 Mon Sep 17 00:00:00 2001
From: qiang <guoshengqiang@live.com>
Date: Thu, 4 Jul 2019 17:17:56 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20IntersectionObserver=20=E5=AF=B9?=
 =?UTF-8?q?=E8=B1=A1=E6=96=B9=E6=B3=95=20relativeTo=20relativeToViewport?=
 =?UTF-8?q?=20=E6=94=AF=E6=8C=81=E9=93=BE=E5=BC=8F=E8=B0=83=E7=94=A8?=
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---
 src/core/service/api/create-intersection-observer.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/core/service/api/create-intersection-observer.js b/src/core/service/api/create-intersection-observer.js
index 9d20cd0c3..c184e113b 100644
--- a/src/core/service/api/create-intersection-observer.js
+++ b/src/core/service/api/create-intersection-observer.js
@@ -20,10 +20,12 @@ class MPIntersectionObserver {
   relativeTo (selector, margins) {
     this.options.relativeToSelector = selector
     this._makeRootMargin(margins)
+    return this
   }
   relativeToViewport (margins) {
     this.options.relativeToSelector = null
     this._makeRootMargin(margins)
+    return this
   }
   observe (selector, callback) {
     if (typeof callback !== 'function') {
-- 
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