小程序：<web-view srchttps://crm.bm.cn/wechat/3/getopen?me=1"bindmessage"getMessage"></web-view

getMessage: function (e){

wx.setStorageSync('openid', e.detail.data[0].msg)

},

H5里面只有：<script type="text/javascript" src="https://res.wx.qq.com/open/js/jweixin-1.3.2.js"></script>

<script>

    wx.miniProgram.postMessage({ data: {msg: "{{$open_id}}"}})

    wx.miniProgram.navigateBack({});

</script>

请问这个是怎么回事