The router base url is without / on the end

core/js/router.js

@@ -1,11 +1,11 @@
-OC.router_base_url = OC.webroot + '/index.php/',
+OC.router_base_url = OC.webroot + '/index.php',
 OC.Router = {
 	// register your ajax requests to load after the loading of the routes
 	// has finished. otherwise you face problems with race conditions
 	registerLoadedCallback: function(callback){
 		this.routes_request.done(callback);
 	},
-	routes_request: $.ajax(OC.router_base_url + 'core/routes.json', {
+	routes_request: $.ajax(OC.router_base_url + '/core/routes.json', {
 		dataType: 'json',
 		success: function(jsondata) {
 			if (jsondata.status === 'success') {