Shibboleth & Wordpress Logout

[Chris Bland]

Hello all,

I have implemented Wordpress v3.4.1 & Shibboleth SP v2.5.0 using the Shibboleth module.  I have observed that SP and Wordpress session cookies are removed if a user logs out locally on the wordpress host but the Wordpress session cookies remain when I logout of Shibboleth from another SP.  I am trying to figure out what options I have to deal with this security issue.  Are there any settings I have overlooked?  Is there an additional module I don't know about?  Any suggestions on dealing with this vulnerability would be appreciated.

Thank you in advance,

-Chris