  # Change 'subfolder' to be the folder you want to redirect request to. RewriteCond %{REQUEST_URI} !^/domain-b/  # Don't change this line. RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d  # Change 'subfolder' to be the folder you want to use for your primary domain. RewriteRule ^(.*)$ /domain-b/$0 [L]  # Change domain.com to be your primary domain again. # Change 'subfolder' to be the folder you will use for your primary domain # followed by / then the main file for your site, index.php, index.html, etc. RewriteCond %{HTTP_HOST} ^(www