From 162c8e0a2abb092675c21e27904747c32911d3c8 Mon Sep 17 00:00:00 2001
From: Jimb Esser <wasteland@gmail.com>
Date: Mon, 18 Feb 2013 16:46:59 -0800
Subject: [PATCH] Fix crash in FireFox when pop-up is initially blocked.

---
 FileSaver.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/FileSaver.js b/FileSaver.js
index e4a4e56..c514e6e 100644
--- a/FileSaver.js
+++ b/FileSaver.js
@@ -92,7 +92,9 @@ var saveAs = saveAs
 					if (blob_changed || !object_url) {
 						object_url = get_object_url(blob);
 					}
-					target_view.location.href = object_url;
+					if (target_view) {
+						target_view.location.href = object_url;
+					}
 					filesaver.readyState = filesaver.DONE;
 					dispatch_all();
 				}