setTimeout定时调用window.open打开网页打不开？
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>window.open</title>
<script type="text/javascript">
function Wopen(){
window.open('http://www.imooc.com','_blank','width=300,height=200,menubar=no,toolbar=no, status=no,scrollbars=yes');
}
setTimeout("Wopen()",1000);
</script>
</head>
<body>
</body>
</html>
请问这段代码中为什么不会打开imooc的网页
