Allow $rcmail_config['skin_logo'] to have path outside roundcube's root.

[klonos]

We have our site's webmail (previously squirrelmail, now roundcube) as a sub-folder of our webserver's root (/var/www/webmail/) in order for the URL to be in the form of ​http://www.our-site.net/webmail/. It is easier and tidier for us to maintain files such as custom logo under the same path we have the rest of the site's images (/var/www/images/). That way, we only need to backup & copy only db.inc.php & main.inc.php after each upgrade.

So we've tried setting 'skin_logo' in the main.inc.php to:

$rcmail_configskin_logo? = '../images/webmail_logo.png';

Unfortunately, it doesn't work.

[thomasb]

Works for me. Of course the URL has to be accessible for the browser.
Alternatively try setting an absolute URL like http://www.our-site.net/images/webmail_logo.png.