I am experiences a weird problem in a CakePHP application. It only
seems to happen on specific version of IE8, and I have been unable to
reproduce the problem myself, but the user has been helpful and
reproduced it for me several times, so that I could collect some
debugging information. The user agent is:
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0;
GTB6.6; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR
3.0.4506.2152; .NET CLR 3.5.30729)
The problem arises on a specific method in a controller, which simply
reads a session variable twice and tests the read out value, here is a
simplification of the code:
function faulty_method($id = null)
{
if($this->Session->read('type') == 1)
{
// Do stuff1
}
else if($this->Session->read('type') == 2)
{
// Do stuff2
}
else
{
$this->flash('No access', '/site');
}
}
For this particular user, he always get a new session when entering
this method, thus the session variable is not available and the test
fails. In the debug information I can clearly see that the session ID
changes between the previous page and this faulty site. Here is a
snippet of the cookies available on the previous site and the cookies
on the faulty site:
Array
(
[__utma] => ...
[CAKEPHP] => cf6aaa77438e8025e0ea26a91f54b5a1
)
Array
(
[CAKEPHP] => 79f1b7fe5c795aa7c295dec6b584e955
[__utma] => ...
)
On any browser I have tested with (including IE8, both with and
without compatibility mode) I keep the same session ID during the
whole session. And I have tried to use the most restricted security
setup of IE. Session.checkAgent is set to false. Furthermore I have
updated to 1.3 and is using the new cake_session.php from
http://cakephp.lighthouseapp.com/projects/42648/tickets/332-session_write_close-in-sessionphp-problem-multiple-set-cookie
which lead to the user only occasionally loses his session.
Currently I see no other way, but to use URL sessions, but I hope
someone can point me in the right direction, and fix this problem so I
can use normal cookie sessions.
Thanks in advance.
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