I uploaded .htaccess file in htdocs directory but htaccess does not work
htaccess is:
# Canonical https/www (when using proxy)
<IfModule mod_rewrite.c>
RewriteCond %{HTTP:X-Forwarded-Proto} !https
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteRule (.*) https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
</IfModule>