when I add  open-type= "share"  to the button, then print the result in the successful callback in the  onShareAppMessage  method as follows: 
return {
  title: "",
  path: "page/show/pages/detail/detail",
  imageUrl: img,
  success: function(res) {
    console.log(res)
    console.log(111)
  },
  fail: function(res) {
    console.log(res)
  }
}button nor the forwarding callback in the upper right corner takes effect.
