fix for in loop.

src/layouts/BasicLayout.js

@@ -134,7 +134,7 @@ export default class BasicLayout extends React.PureComponent {
     let title = 'Ant Design Pro';
     let currRouterData = null;
     // match params path
-    for (const key in Object.keys(routerData)) {
+    for (const key in routerData) {
       if (pathToRegexp(key).test(pathname)) {
         currRouterData = routerData[key];
         break;