document.setTitle = function(t) {
document.title = t;
var i = document.createElement(‘iframe‘);
i.src = ‘//m.baidu.com/favicon.ico‘;
i.style.display = ‘none‘;
i.onload = function() {
setTimeout(function() {
i.remove();
}, 9)
}
document.body.appendChild(i);
}
微信动态设置title
原文：http://www.cnblogs.com/SunSong/p/7136566.html
