How to create a proper internal redirect?

Question

Apache HTTP Server

The essence of this is to do an internal redirect at the site.ru/name_folder/ request to load the content from site.ru/myfolder/name_folder/. There is a ready htaccess
RewriteCond %{REQUEST_URI} !^/index.html$
RewriteRule ^(.+)$ /myfolder/$1 [L]
It works, but when we request a page without a slash at the end of site.ru/name_folder, it redirects to the page site.ru/myfolder/name_folder/, but you need to stay on the page site.ru/name_folder/

Answer 1

Solved by enabling
RewriteOptions AllowNoSlash