Ext在IE9上报错：对象不支持“createContextualFragment”属性或方法

在页面中增加下面脚本

<script type="text/javascript">

if ((typeof Range !== "undefined") && !Range.prototype.createContextualFragment)

{

Range.prototype.createContextualFragment = function(html)

{

var frag = document.createDocumentFragment(),

div = document.createElement("div");

frag.appendChild(div);

div.outerHTML = html;

return frag;

};

}

</script>

源自
http://forums.ext.net/showthread.php?12837-FIXED-createContextualFragment-error-in-IE9