Internet Explorer中的备用btoa编码
问题描述：
我正在尝试将 http://jsbin.com/ufufez/1/edit 中的相同代码实施到我的环境，它不在IE中工作。有人可以为此提供替代解决方案，使其在IE> 8中工作。
I am trying to implement the same code from http://jsbin.com/ufufez/1/edit into my environment and it's not working in IE. Can someone give an alternate solutions for this to make it work in IE > 8.
答
不支持window.btoa（） on< = IE9。
window.btoa() is not supported on <= IE9.
还有更多选择，但我想你可以使用 jQuery.base64.js 如下所示
There are few more alternatives but I guess you can use jQuery.base64.js as below
if (window.btoa) {
msg.dataEncoded = window.btoa(msg.data);
} else { //for <= IE9
msg.dataEncoded = jQuery.base64.encode(msg.data);
}