From f4bd7ea5708268c3ae059013db5e98695eeac855 Mon Sep 17 00:00:00 2001
From: Marty Alcala <marty@bitpay.com>
Date: Tue, 15 Nov 2016 10:51:00 -0500
Subject: [PATCH] check to make sure scrollPosition is defined

---
 src/js/controllers/walletDetails.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/js/controllers/walletDetails.js b/src/js/controllers/walletDetails.js
index c2737c64b..34e78b751 100644
--- a/src/js/controllers/walletDetails.js
+++ b/src/js/controllers/walletDetails.js
@@ -237,7 +237,14 @@ angular.module('copayApp.controllers').controller('walletDetailsController', fun
   var prevPos;
 
   function getScrollPosition() {
-    var pos = $ionicScrollDelegate.getScrollPosition().top;
+    var scrollPosition = $ionicScrollDelegate.getScrollPosition();
+    if (!scrollPosition) {
+      $window.requestAnimationFrame(function() {
+        getScrollPosition();
+      });
+      return;
+    }
+    var pos = scrollPosition.top;
     if (pos === prevPos) {
       $window.requestAnimationFrame(function() {
         getScrollPosition();