RewriteEngine
- Do not duplicate
RewriteEngine
- Make sure the lines beginning
RewriteCond and RewriteRule immediately follow the already-existing RewriteEngine On.
Redirect to HTTPS
RewriteEngine On
RewriteCond %{ENV:HTTPS} !=on
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
Redirect to www/HTTPs
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^(.*)$ https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
Remove trailing slashes
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/$ /$1 [L,R=301]
References