From ee499b46cf5f6cb74cc7959f449c4c47a55da9d5 Mon Sep 17 00:00:00 2001
From: Yury Delendik <ydelendik@mozilla.com>
Date: Mon, 15 Oct 2012 07:40:05 -0500
Subject: [PATCH] Removes 'visiblePages[0] is undefined' error

---
 web/viewer.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/web/viewer.js b/web/viewer.js
index 393c1a4b1..6610b64c6 100644
--- a/web/viewer.js
+++ b/web/viewer.js
@@ -2772,6 +2772,9 @@ function updateViewarea() {
     return;
   var visible = PDFView.getVisiblePages();
   var visiblePages = visible.views;
+  if (visiblePages.length === 0) {
+    return;
+  }
 
   PDFView.renderHighestPriority();