IE10与IE11出现的__doPostBack未定义解决方法

1、项目根目录下，建App_Browsers文件夹
2、在文件夹中新建文件ie.browser文件，文件内容粘贴如下内容：

<browsers>
 <browser id="IE11" parentID="Mozilla">
 <identification>
 <userAgent match="Trident\/7.0; rv:(?'version'(?'major'\d+)(\.(?'minor'\d+)?)(?'letters'\w*))(?'extra'[^)]*)" />
 <userAgent nonMatch="IEMobile" />
 </identification>
 <capture>
 <userAgent match="Trident/(?'layoutVersion'\d+)" />
 </capture>
 <capabilities>
 <capability name="browser" value="IE" />
 <capability name="layoutEngine" value="Trident" />
 <capability name="layoutEngineVersion" value="${layoutVersion}" />
 <capability name="extra" value="${extra}" />
 <capability name="isColor" value="true" />
 <capability name="letters" value="${letters}" />
 <capability name="majorversion" value="${major}" />
 <capability name="minorversion" value="${minor}" />
 <capability name="screenBitDepth" value="8" />
 <capability name="type" value="IE${major}" />
 <capability name="version" value="${version}" />
 </capabilities>
 </browser>
 <!-- Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11,0) like Gecko -->
 <browser id="IE110" parentID="IE11">
 <identification>
 <capability name="majorversion" match="11" />
 </identification>

 <capabilities>
 <capability name="ecmascriptversion" value="3.0" />
 <capability name="jscriptversion" value="5.6" />
 <capability name="javascript" value="true" />
 <capability name="javascriptversion" value="1.5" />
 <capability name="msdomversion" value="${majorversion}.${minorversion}" />
 <capability name="w3cdomversion" value="1.0" />
 <capability name="ExchangeOmaSupported" value="true" />
 <capability name="activexcontrols" value="true" />
 <capability name="backgroundsounds" value="true" />
 <capability name="cookies" value="true" />
 <capability name="frames" value="true" />
 <capability name="javaapplets" value="true" />
 <capability name="supportsCallback" value="true" />
 <capability name="supportsFileUpload" value="true" />
 <capability name="supportsMultilineTextBoxDisplay" value="true" />
 <capability name="supportsMaintainScrollPositionOnPostback" value="true" />
 <capability name="supportsVCard" value="true" />
 <capability name="supportsXmlHttp" value="true" />
 <capability name="tables" value="true" />
 <capability name="supportsAccessKeyAttribute" value="true" />
 <capability name="tagwriter" value="System.Web.UI.HtmlTextWriter" />
 <capability name="vbscript" value="true" />
 </capabilities>
 </browser>
</browsers>

3、重启IIS尝试是否修正错误，如未修正，把上述代码粘贴到%WinDir%\Microsoft.NET\Framework64\v4.0.30319\CONFIG\Browsers文件夹
再次尝试。
4、如果还不行，请安装NET插件：http://www.microsoft.com/zh-cn/download/details.aspx?id=28936

mayb