bugfix: #1355

Author: hucq

src/platforms/mp/runtime/events.js

@@ -81,12 +81,14 @@ function getWebEventByMP (e) {
   return event
 }
 
+
+const KEY_SEP = '_'
 export function handleProxyWithVue (e) {
   const rootVueVM = this.$root
   const { type, target = {}, currentTarget } = e
   const { dataset = {} } = currentTarget || target
   const { comkey = '', eventid } = dataset
-  const vm = getVM(rootVueVM, comkey.split(','))
+  const vm = getVM(rootVueVM, comkey.split(KEY_SEP))
 
   if (!vm) {
     return