From 6c1bbf0ab5781951364464c5fa68ad22f74c9fee Mon Sep 17 00:00:00 2001
From: Stephen Blott
Date: Mon, 29 Dec 2014 07:15:44 +0000
Subject: Scroller; check document.body exists.

---
 content_scripts/scroller.coffee | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'content_scripts')

diff --git a/content_scripts/scroller.coffee b/content_scripts/scroller.coffee
index fdfb7ddc..889dc042 100644
--- a/content_scripts/scroller.coffee
+++ b/content_scripts/scroller.coffee
@@ -219,7 +219,7 @@ Scroller =
         window.scrollBy(0, amount)
       return
 
-    activatedElement ||= firstScrollableElement()
+    activatedElement ||= document.body and firstScrollableElement()
     return unless activatedElement
 
     # Avoid the expensive scroll calculation if it will not be used.  This reduces costs during smooth,
@@ -230,7 +230,7 @@ Scroller =
       CoreScroller.scroll element, direction, elementAmount
 
   scrollTo: (direction, pos) ->
-    activatedElement ||= firstScrollableElement()
+    activatedElement ||= document.body and firstScrollableElement()
     return unless activatedElement
 
     element = findScrollableElement activatedElement, direction, pos, 1
-- 
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