this.getOpenerEventChannel在小程序平台使用原生方法

src/core/runtime/wrapper/create-app.js

@@ -12,11 +12,16 @@ import {
 
 export default function createApp (vm) {
   Vue.prototype.getOpenerEventChannel = function () {
+    switch (__PLATFORM__) {
+      case 'mp-weixin':
+        return this.$scope.getOpenerEventChannel()
+      default :
         if (!this.__eventChannel__) {
           this.__eventChannel__ = new EventChannel()
         }
         return this.__eventChannel__
     }
+  }
   const callHook = Vue.prototype.__call_hook
   Vue.prototype.__call_hook = function (hook, args) {
     if (hook === 'onLoad' && args && args.__id__) {