From 6e5905370dd0aedd9c7f3e79527e182863865b5b Mon Sep 17 00:00:00 2001
From: Brett Zamir <brettz9@gmail.com>
Date: Mon, 10 Feb 2014 13:45:48 +0000
Subject: [PATCH] Add e.returnValue in addEventListener('beforeunload') for
 sake of Firefox

git-svn-id: http://svg-edit.googlecode.com/svn/trunk@2680 eee81c28-f429-11dd-99c0-75d572ba1ddd
---
 editor/svg-editor.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/editor/svg-editor.js b/editor/svg-editor.js
index b03458b2..6610230f 100644
--- a/editor/svg-editor.js
+++ b/editor/svg-editor.js
@@ -4578,6 +4578,7 @@
 				// showSaveWarning is set to 'false' when the page is saved.
 				if (!curConfig.no_save_warning && Editor.showSaveWarning) {
 					// Browser already asks question about closing the page
+					e.returnValue = uiStrings.notification.unsavedChanges; // Firefox needs this when beforeunload set by addEventListener (even though message is not used)
 					return uiStrings.notification.unsavedChanges;
 				}
 			}, false);