Rails - Apr 2006 - cookies not deleting?????

I was running into a problem where i was setting two different cookies for
"
www.myapp.com" and "myapp.com".  To fix this, when i set the
cookie i
specified the domain to be ".myapp.com".  However now when i try to
delete
the cookie cookies.delete :myapp_cookie, it wont delete.

Why is that?

Here is my code:

when logging in -
...
cookies[:myapp_cookie] = {:value => logged_in_user.get_remember_token,
                                        :expires => 1.year.from_now,
                                        :domain  =>
''.myapp.com''}
...


when logging out -
...
 cookies.delete :myapp_cookie

...

Any help would be greatly appreciated.
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