dialog弹窗问题

为啥会闪退啊，点击空白区域后

<div class="mdui-dialog" style="height: 400px;" id="guanggao"><div class="mdui-dialog-title">广告</div><div class="mdui-dialog-content mdui-valign"><div class="mdui-typo"><a href="https://idc.lemiaoyun.cn"><img src="assets/images/guanggao.png"/></a><p>感谢乐喵云提供CDN支持！<a href="https://idc.lemiaoyun.cn">点击前往</a></p></div></div></div>

var inst = new mdui.Dialog('#guanggao');

inst.open();

https://www.sgtap.tk/