fix: async install config, fixed #425

src/core/config.js

@@ -1,6 +1,7 @@
 import {merge, hyphenate, isPrimitive, hasOwn} from './util/core'
 
-const config = merge(
+export default function () {
+  const config = merge(
     {
       el: '#app',
       repo: '',
@@ -27,15 +28,15 @@ const config = merge(
       noCompileLinks: []
     },
     window.$docsify
-)
+  )
 
-const script =
+  const script =
     document.currentScript ||
     [].slice
       .call(document.getElementsByTagName('script'))
       .filter(n => /docsify\./.test(n.src))[0]
 
-if (script) {
+  if (script) {
     for (const prop in config) {
       if (hasOwn.call(config, prop)) {
         const val = script.getAttribute('data-' + hyphenate(prop))
@@ -61,8 +62,9 @@ if (script) {
     if (config.name === true) {
       config.name = ''
     }
+  }
+
+  window.$docsify = config
+
+  return config
 }
-
-window.$docsify = config
-
-export default config

src/core/init/index.js

@@ -9,7 +9,7 @@ import {isFn} from '../util/core'
 export function initMixin(proto) {
   proto._init = function () {
     const vm = this
-    vm.config = config || {}
+    vm.config = config()
 
     initLifecycle(vm) // Init hooks
     initPlugin(vm) // Install plugins