RewriteEngine On 

RewriteCond %{HTTP_HOST} ^app.oliviahealth\.com [NC] 
RewriteCond %{SERVER_PORT} 80 
RewriteRule ^(.*)$ https://app.oliviahealth.com/$1 [R,L]

RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule . index.php [L]
