From 4abbb4eb9cb6c46a1dc3ce632698dc5de6366b74 Mon Sep 17 00:00:00 2001
From: Wu Haotian <whtsky@gmail.com>
Date: Mon, 7 Aug 2017 14:21:03 +0800
Subject: [PATCH] cache resolved layouts in resolvedLayouts

---
 lib/app/App.vue | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/lib/app/App.vue b/lib/app/App.vue
index d2e9f8a163..9febdf0078 100644
--- a/lib/app/App.vue
+++ b/lib/app/App.vue
@@ -19,6 +19,8 @@ layoutsKeys.forEach(function (key, i) { %>
 <% }) %>
 }
 
+let resolvedLayouts = {}
+
 export default {
   head: <%= JSON.stringify(head) %>,
   data: () => ({
@@ -42,13 +44,14 @@ export default {
     loadLayout (layout) {
       if (!layout || !layouts['_' + layout]) layout = 'default'
       let _layout = '_' + layout
-      if (typeof layouts[_layout] !== 'function') {
-        return Promise.resolve(layouts[_layout])
+      if (resolvedLayouts[_layout]) {
+        return Promise.resolve(resolvedLayouts[_layout])
       }
       return layouts[_layout]()
       .then((Component) => {
-        layouts[_layout] = Component
-        return layouts[_layout]
+        resolvedLayouts[_layout] = Component
+        delete layouts[_layout]
+        return resolvedLayouts[_layout]
       })
       .catch((e) => {
         if (this.$nuxt) {