Codeigniter HTTPS (SSL) What is the "Best Practice"?

Hi ~ here is the .htaccess code I used :

RewriteEngine On
RewriteCond %{HTTPS} !=on
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

And the */application/config/config.php file includes :

$config['base_url'] = "";