.htaccess redirect www to non-www with SSL/HTTPS

Question

I've got several domains operating under a single .htaccess file, each having an SSL certificate.

I need to force a https prefix on every domain while also ensuring www versions redirect to no-www ones.

Below is my code; it doesn't work:

RewriteCond %{HTTP_HOST} ^www.%{HTTP_HOST}
RewriteRule ^.*$ https://%{HTTP_HOST}%{REQUEST_URI}/$1 [R=301,L]

What I want to achieve is to: redirect something like https://www.example.com to https://example.com.

What am I doing wrong and how can I achieve it?

Answer 1

www to non www with https

RewriteEngine on

RewriteCond %{HTTP_HOST} ^www.(.*)$ [NC]
RewriteRule ^(.*)$ https://%1/$1 [R=301,L]

RewriteCond %{ENV:HTTPS} !on
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]