Primefaces 4，Omnifaces 1.7 JSF处理会话超时失败

Question

faces-config.xml

<factory>
    <exception-handler-factory>org.omnifaces.exceptionhandler.FullAjaxExceptionHandlerFactory</exception-handler-factory>
</factory>


web.xml

<error-page>
    <exception-type>javax.faces.application.ViewExpiredException</exception-type>
    <location>/Login/login.xhtml</location>
</error-page>
<session-config>
    <session-timeout>1</session-timeout>
</session-config>

<filter>
    <filter-name>facesExceptionFilter</filter-name>
    <filter-class>org.omnifaces.filter.FacesExceptionFilter</filter-class>
</filter>
<filter-mapping>
    <filter-name>facesExceptionFilter</filter-name>
    <servlet-name>Faces Servlet</servlet-name>
</filter-mapping>

会话超时后，我想重定向到登录页面。我使用基于表单的身份验证当我登录等待一分钟然后点击按钮时，我经常会看到以下页面：

error page:
<partial-response id="j_id1">
 <redirect url="/CuViS/Manager/show.xhtml"/>
  <changes>
   <update id="j_id1:javax.faces.ViewState:0">-2290296337409893276:-7107311277476366039</update>     
  </changes>
  </partial-response>

其中网址是我点击按钮的当前页面。

当我删除omnifaces配置时，会出现相同的行为。我做错了什么？