404错误页指定问题

配置了错误页以后，在正常的url后加单引号 ’，无法跳转到错误页

 <customErrors mode="ON" >

      <error statusCode="404"  redirect="ErrorPage.aspx"/>

 </customErrors>

404  错误页 --------------------编程问答-------------------- error statusCode="404.0" --------------------编程问答-------------------- <customErrors defaultRedirect="sorry.htm" mode="On">  
     <error statusCode="404" redirect="ErrorPage.aspx"/>
</customErrors>

http://stackoverflow.com/questions/615829/iis-404-custom-error-not-working-as-expected --------------------编程问答-------------------- http://stackoverflow.com/questions/781861/customerrors-does-not-work-when-setting-redirectmode-responserewrite

补充：.NET技术 ,  ASP.NET