cloudflare http跳转到https下的htaccess文件写法

RewriteEngine on
RewriteCond %{THE_REQUEST} ^.*/index.html HTTP/
RewriteRule ^(.*)index.html$ /$1
RewriteCond %{HTTP_HOST} !^www.
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/$1

RewriteCond %{HTTP:CF-Visitor} '"scheme":"http"'
RewriteRule ^(.*)$ https://%{HTTP_HOST}/$1