There are quite a few results for add trailing slash .htaccess on Google, but all examples I found require the use of your domain name, as in this example:
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_URI} !example.php
RewriteCond %{REQUEST_URI} !(.*)/$
RewriteRule ^(.*)$ http://domain.com/$1/ [L,R=301]
My problem is that a hard-coded domain name will not work on my local development machine. Is there a way to add trailing slashes without explicitly telling mod_rewrite the domain name?