How to make suffix .html instead of .htm by default?

Question

OctoberCMS

It is very necessary that in a new project on OctoberCMS all URLs end in .html and not .htm
When you try to create a page with such an extension in the admin panel, Oktober swears.
Is it possible to solve this so that all new urls are created with such a suffix It's a
long time to explain why this is needed, but it's true. Thanks in advance

Answer 1

Add the following rules to .htaccess if Apache web server (mod_rewrite module must be installed and enabled):

RewriteEngine on
RewriteBase /
RewriteRule ^(.*)\.htm$ $1.html [R=permanent]

This will rewrite all URLs to the format you need without changing anything in the October CMS itself.