diff --git a/lib/cartodb/controllers/map.js b/lib/cartodb/controllers/map.js
index a84fcf75..9aa3b34f 100644
--- a/lib/cartodb/controllers/map.js
+++ b/lib/cartodb/controllers/map.js
@@ -473,7 +473,7 @@ MapController.prototype.getUrls = function(username, resource) {
 
 MapController.prototype.getUrlsFromTemplate = function(username, resource) {
     var urls = {};
-    var cdnUrl = global.environment.serverMetadata && global.environment.serverMetadata.cdn_url;
+    var cdnUrl = global.environment.serverMetadata && global.environment.serverMetadata.cdn_url || {};
 
     if (this.resourcesUrlTemplates.http) {
         urls.http = this.resourcesUrlTemplates.http({