wp_set_auth_cookie and FileSystem relation

[rezamarandi]

guys i have a new fresh installed on digital ocean server
my theme do wordpress reseting and then create new auth cookie with bottom code :

<?php
wp_clear_auth_cookie();
wp_set_current_user($user_id, $user->user_login);
if ($session_tokens)
{
        delete_user_meta($user->ID, 'session_tokens');
        update_user_meta($user->ID, 'session_tokens', $session_tokens);
}

wp_set_auth_cookie($user_id, true);
do_action('wp_login', $user->user_login);

its interesting because this piece of code will not work when the ownership of wordpress directory is not apache user for example :
someuser:www-data
but it will works when we change ownership of server to : www-data:www-data

[dd32]

Hi @rezamarandi and welcome to Trac.

Indeed the script should operate the same in both of those configurations, there's no restriction in WordPress which would prevent it from doing so.
This feels like it could potentially be caused by a strange server mis-configuration.

Can you supply the full headers output when you request the script in both modes?

[johnbillion]

Please re-open if you can provide further details.