Single sign on across multiple subdomains error with IE

Hi everybody,

I use single sign on across multiple subdomains in the main configuration file:


[i]'components' => array(

    'user' => array(

        // enable cookie-based authentication

        'allowAutoLogin' => true,

    ),

    // session configuration

    'session' => array(

        'savePath' => '/some/writeable/path',

        'cookieMode' => 'allow',

        'cookieParams' => array(

            'path' => '/',

            'domain' => '.yourdomain.com',

            'httpOnly' => true,

        ),

    ),[/i]

It ok with firefox and chrome, but with IE, I lose session and cookie.

Any help appreciated.

Thanks