Cloudflare adds Vary handling to Cache Rules

Sources: primary, discussion
Summary: Cloudflare shipped Vary handling in Cache Rules on every plan. Each header can be set to normalize, passthrough, or bypass, which bounds how far content negotiation fragments a cache into entries that are never reused.
Why it matters: Origins that set Vary can now be cached on every plan, with per-header normalize, passthrough, or bypass actions to stop negotiation headers fragmenting a cache into entries that are never reused.