From dc5d88d93d4529169429c91a631b80cff7ca605a Mon Sep 17 00:00:00 2001
From: John Firebaugh <john.firebaugh@gmail.com>
Date: Thu, 8 Aug 2013 11:51:13 -0700
Subject: [PATCH] Add a hash if one isn't already present

---
 app/views/site/id.html.erb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/views/site/id.html.erb b/app/views/site/id.html.erb
index 53e177a3f..1b4cdf1bb 100644
--- a/app/views/site/id.html.erb
+++ b/app/views/site/id.html.erb
@@ -51,7 +51,7 @@
       // http://bl.ocks.org/jfirebaugh/5439412
       var hash = parent.OSM.formatHash({ lon: center[0], lat: center[1], zoom: zoom });
       if (hash !== parent.location.hash) {
-        parent.location.replace(parent.location.href.replace(/#.*/, hash));
+        parent.location.replace(parent.location.href.replace(/(#.*|$)/, hash));
       }
     }));
 
-- 
2.43.2