Origin Cache Control is a Cloudflare feature. When enabled on an Enterprise customer's website, it indicates that Cloudflare should strictly respect Cache-Control directives received from the origin server. Free, Pro and Business customers have this feature enabled by default.| Cloudflare Docs
Let’s take a closer look at how cache poisoning works and how I was able to exploit this vulnerability to get a DOS on the home page of a large company.| zhero_web_security