微信动态设置title

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);

}