remove by mistake

crawler.js

@@ -56,6 +56,7 @@ crawler.on("complete", function() {
   console.log("crawled " + url_list.length + " urls");
   var xml_dict = {
     "urlset": {
+      "@xmlns": "http://www.sitemaps.org/schemas/sitemap/0.9",
       "url": url_list
     }
   };