在页面中添加如下Js代码即可

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;
         };
     }

? 原文：http://www.sencha.com/forum/showthread.php?125869-Menu-shadow-probolem-in-IE9&p=579336

?