favicon ico上传 更新数据

界面引入

<link rel="shortcut icon" href="static/favicon.ico" type="image/vnd.microsoft.icon">
<link rel="shortcut icon" href="static/favicon.ico" type="image/x-icon" >

上传成功后调用新的地址

function changeFavicon(src) {
        var link = document.createElement('link'),
            oldLink = document.getElementById('dynamic-favicon');
        link.id = 'dynamic-favicon';
        link.type = 'image/x-icon';
        link.rel = 'shortcut icon';
        link.href = src;
        if (oldLink) {
         document.head.removeChild(oldLink);
        }
        document.head.appendChild(link);
    }