HTTPS support for multisite

Hi.

I have observed a strange behavior in my wordpress installation since i upgraded to a multisite. I am using a HTTPS server only and with my single-site install everything was fine.

But since the upgrade to multisite I cannot configure wordpress to use HTTPS only. This is my current configuation of wp-config.php

define('WPLANG', 'de_DE');
define('WP_DEBUG', false);

#define('RELOCATE',true);
define('WP_ALLOW_MULTISITE', true);
define('MULTISITE', true);
define('SUBDOMAIN_INSTALL', false);
define('DOMAIN_CURRENT_SITE', 'www.[mysite].com');
define('PATH_CURRENT_SITE', '/blog/');
define('SITE_ID_CURRENT_SITE', 1);
define('BLOG_ID_CURRENT_SITE', 1);

When I try to add ‘https://’ to the DOMAIN_CURRENT_SITE the site is not working at all. I traced my nginx log and php seems to generate 302 (redirects) once I activeated the change. Without HTTPS the blog wants to access the server at http (without s) at certain conditions (e.g. when creating a new site).

I don’t have any ideas what’s wrong. Perhaps one of you guys can help me?

Thanks a lot!