web-view的bindmessage失效，触发不了？

<view class=“pageH5”>

<web-view src=“{{getDuibaURL}}” style=“margin-top:100rpx;” bindmessage=“eventHandler”></web-view>

</view>

eventHandler(e){

console.log(e)

console.log(‘获取兑吧参数’)

this.setData({

title: e.detail.data[0].title,

imgUrl: e.detail.data[0].imgUrl,

duibaUrl: util.baseEncode(e.detail.data[0].link)

});

},