logout not working in IPAD

Really weird think happening with my site!

I have a "welcome {{user.email}}" in the top of my base.html page! So far was working fine, but when I tested the site in a IPAD2 and Iphone4, I saw that, the login part wasnt working right!What I mean by that is, if I am logged in the welcome message has been showing, but if I logout, some pages are still showing the welcome message in the top, but if I reload the page then it works fine afterwards! It seems that JUST ipad is holdin开发者_StackOverflowg some kind of cache! is it that even possible?

Just for record I am not using cache in my django app! my settings.py file has:

CACHES = {
    'default': {
        'BACKEND': 'django.core.cache.backends.dummy.DummyCache',
    }
}

So, I know that django is not messing things up! it is something with ipad!(client side)

does someone have a clue about it?!

EDIT

I tried already adding;

<META HTTP-EQUIV="Pragma" CONTENT="no-cache">
<META HTTP-EQUIV="Expires" CONTENT="-1">

and

<meta http-equiv="Cache-control" content="no-cache">

no success so far though.

EDIT2: This is happening in Safari also! but just in Safari and MAC os!! using Safari in windows works fine!

you're probably holding it wrong...

if you really think it's client side maybe you can try to add some meta tags for cache control and see if that helps.