As described in this article, Google will begin a trial of its new feature which many feel endangeres the privacy of Chrome users. There is currently no way for the users to opt out.
However, website owners do have the option to opt-out by sending a specific header.
This is described in more detail on floc’s github page,
I would like to add this header but since I’m behind Cloudflare I can’t add custom headers (this would require an enterprise subscription).
Could Cloudflare add this feature on its own as a security measure? We already have tools to block XSS etc, this would mean adding one more thing to block.