The source project of this merge request has been removed.
Instruct users to create a Forwarding URL rule in Cloudflare.
@marcia I run across your comment and I think it has become partially outdated - looks like nowadays Cloudflare doesn't automatically create a Forwarding Rule that redirects *www.domain.com to https://domain.com. I created a new site with Cloudflare today and there were no Page Rules for it.
Therefore, I'm suggesting to update the relevant documentation part and instruct users to create such a redirect rule themselves.