statics preload

@@ -10,6 +10,17 @@ module.exports = (app) => {
     function getStatic(path, def) {
         return _.get(manifest, path, `${config.assetUrl}${def}`);
     }
+
+    function getPreloads(list, type) {
+        let _list = [];
+
+        _.forEach(list, url => {
+            _list.push({url, type});
+        });
+
+        return _list;
+    }
+
     return (req, res, next) => {
         res.on('beforeRender', (params) => {
             if (params) {
@@ -35,7 +46,10 @@ module.exports = (app) => {
                     } else {
                         statics.styles.push(getStatic('common.index.css', 'css/index.css'));
                     }
+
                     res.locals.statics = statics;
+                    res.locals.preloads = _.concat(getPreloads(statics.styles, 'style'),
+                        getPreloads(statics.javascripts, 'script'));
                 }
             }
         });

@@ -24,6 +24,10 @@
             <link rel="dns-prefetch" href="{{this}}">
         {{/dnsPrefetch.hosts}}
 
+        {{#preloads}}
+            <link rel="preload" href="{{url}}" as="{{type}}">
+        {{/preloads}}
+
         <script>
             {{#ifand isProduction wap.open.bughd}}
             window._timeStart = new Date().getTime();