From d3de7b2e9fae44c0c4c9327bca862115f0293817 Mon Sep 17 00:00:00 2001
From: Roman Hotsiy <gotsijroman@gmail.com>
Date: Sun, 17 Jan 2016 20:00:18 +0200
Subject: [PATCH] Fix sticky sidebar

---
 lib/common/components/StickySidebar/sticky-sidebar.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/common/components/StickySidebar/sticky-sidebar.js b/lib/common/components/StickySidebar/sticky-sidebar.js
index ed5904dc..26866834 100644
--- a/lib/common/components/StickySidebar/sticky-sidebar.js
+++ b/lib/common/components/StickySidebar/sticky-sidebar.js
@@ -55,7 +55,7 @@ export default class StickySidebar {
   }
 
   get scrollY() {
-    return this.scrollParent.pageYOffset || this.scrollParent.scrollTop || 0;
+    return (this.scrollParent.pageYOffset === null) ? this.scrollParent.scrollTop : this.scrollParent.pageYOffset;
   }
 
   ngOnInit() {