DNS 预读配置

@@ -99,6 +99,7 @@ try {
     const errorHanlder = require('./doraemon/middleware/error-handler');
     const setPageInfo = require('./doraemon/middleware/set-pageinfo');
     const devtools = require('./doraemon/middleware/devtools');
+    const layoutTools = require('./doraemon/middleware/layout-tools');
     const seo = require('./doraemon/middleware/seo');
     const pageCache = require('./doraemon/middleware/page-cache');
 
@@ -114,6 +115,8 @@ try {
         app.use(devtools());
     }
 
+    app.use(layoutTools());
+
     app.use(pageCache());
     require('./dispatch')(app);
     app.all('*', errorHanlder.notFound()); // 404

 'use strict';
 
 const fs = require('fs');
-const dnsPrefetch = require('../../config/dns-prefetch');
-
 let devHost = '127.0.0.1';
 
 fs.readFile('.devhost', (err, buf)=> {
@@ -14,8 +12,7 @@ fs.readFile('.devhost', (err, buf)=> {
 module.exports = () => {
     return (req, res, next) => {
         Object.assign(res.locals, {
-            devHost: devHost,
-            dnsPrefetch: dnsPrefetch
+            devHost: devHost
         });
 
         next();

+'use strict';
+
+const dnsPrefetch = require('../../config/dns-prefetch');
+
+module.exports = () => {
+    return (req, res, next) => {
+        Object.assign(res.locals, {
+            dnsPrefetch: dnsPrefetch
+        });
+
+        next();
+    };
+};