已经开通点金计划，配置了商家小票链接，也打开了开关，现在是能显示商家小票了，但是点击商家小票中的按钮，调用jumpOut事件时，没法打开自定义的跳转页面。商家小票页面关键代码如下：

<div class="order_btn">
    <div style="padding:15px;">
        <button class="weui-btn weui-btn_primary"
                          onclick="redirect()">返回</button>
    </div>
    <div class="clear"></div>
</div>


<script type="text/javascript">
    let mchData ={action:'onIframeReady',displayStyle:'SHOW_CUSTOM_PAGE'};
    let postData = JSON. stringify(mchData);
    parent.postMessage(postData,'https://payapp.weixin.qq.com');
    function redirect() {
        alert("212");
        var redirect_url="<{$row.redirect_url}>";
        alert(redirect_url);
        let mchData ={action:'jumpOut', jumpOutUrl:redirect_url};
        let postData = JSON. stringify(mchData);
        parent.postMessage(postData,'https://payapp.weixin.qq.com')
    }
</script>