GoKawiilCloudflare adds Vary header support to Cache Rules across all plans
Cloudflare has launched support for the HTTP Vary response header within its Cache Rules feature, available to customers on every service tier. The update lets origin servers specify which request headers may affect a response, while giving Cloudflare customers control over how those variations are handled in caching—whether by normalizing header values, preserving exact values, or bypassing the cache entirely.