From 80e2496045e0aff445777801e6f57d6f3d378ea4 Mon Sep 17 00:00:00 2001
From: danzel <danzel@localhost.geek.nz>
Date: Tue, 25 Jun 2013 09:03:53 +1200
Subject: [PATCH] Don't try extend bounds by an invalid bounds, doesn't work on
 leaflet versions earlier than
 Leaflet/Leafet@ef17f99708537e1fd8dfd525ea741e80202187d5, to be removed when
 0.6 is released.

---
 src/MarkerClusterGroup.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/MarkerClusterGroup.js b/src/MarkerClusterGroup.js
index 17b24ad16..80b06528b 100644
--- a/src/MarkerClusterGroup.js
+++ b/src/MarkerClusterGroup.js
@@ -278,7 +278,11 @@ L.MarkerClusterGroup = L.FeatureGroup.extend({
 			}
 		}
 
-		bounds.extend(this._nonPointGroup.getBounds());
+		//TODO: Can remove this isValid test when leaflet 0.6 is released
+		var nonPointBounds = this._nonPointGroup.getBounds();
+		if (nonPointBounds.isValid()) {
+			bounds.extend(nonPointBounds);
+		}
 
 		return bounds;
 	},