<script>

//微信浏览器中，aler弹框不显示域名

window.alert = function(name){

var iframe = document.createElement("IFRAME");

iframe.style.display="none";

iframe.setAttribute("src", \'data:text/plain,\');

document.documentElement.appendChild(iframe);

window.frames[0].window.alert(name);

iframe.parentNode.removeChild(iframe);

}

</script>