jsf - Reload page from backBean -

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How can I reload the JSF page after the session is over? I have a filter, when the session is over, it executes this code: 

  res.sendRedirect ("/ index.xhtml");   
 But when I use a component when Ajax and session ends, nothing happens, so think of always reloading after this line. , But it does not know how to do  
 I think the session has to be reloaded when the session expires. Anyone know that it is possible to do this, or any other better idea?   
 
 
 See Balus's answers here: especially the following section:  Exxide Exceptions to See < / Strong>

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