fix

index.html

@@ -13,7 +13,8 @@
         var switchMapping = $.getJSON('/switchMapping').responseJSON;
         var sortedKeys = Object.keys(switchMapping).sort(function(a,b){return switchMapping[a]['index'] - switchMapping[b]['index']});
         var firstListItem = $("li:first", "#switchlist");
-        for (var key in sortedKeys) {
+        for (var i = 0; i < sortedKeys.length; i++) { 
+            var key = sortedKeys[i];
             var newListItem = firstListItem.clone()
             var href = newListItem.children('a')
             href.attr('id', key);