移动端的使用alert、confirm都会显示来源的url，既不美观又影响体验，解决办法是重写alert和confirm。<script type="text/javascript">
var wAlert = window.alert;
window.alert = function (message) {
try {
var iframe = document.createElement("IFRAME");
iframe.style.display = "none";
iframe.setAttribute("src", 'data:text/plain,');
document.documentElement.appendChild(iframe);
var alertFrame = window.frames[0];
var iwindow = alertFrame.window;
if (iwindow == undefined) {
iwindow = alertFrame.contentWindow;
}
iwindow.alert(message);
iframe.parentNode.removeChild(iframe);
}
catch (exc) {
return wAlert(message);
}
}
var wConfirm = window.confirm;
window.confirm = function (message) {
try {
var iframe = document.createElement("IFRAME");
iframe.style.display = "none";
iframe.setAttribute("src", 'data:text/plain,');
document.documentElement.appendChild(iframe);
var alertFrame = window.frames[0];
var iwindow = alertFrame.window;
if (iwindow == undefined) {
iwindow = alertFrame.contentWindow;
}
var result=iwindow.confirm(message);
iframe.parentNode.removeChild(iframe);
return result;
}
catch (exc) {
return wConfirm(message);
}
}
</script>
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http://www.codetc.com/article-345-1.html
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