INFRA Signal 568
We shipped Vary support in Cache Rules on every plan
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Vary support is now available in Cache Rules on every plan. You can normalize known negotiation headers, pass exact values through to the origin when those small differences matter, or bypass cache when the variation is too unpredictable.
Engineers can now control how Cloudflare treats Vary headers, preventing incorrect cache hits and reducing unnecessary cache churn. This gives precise handling of request header variations that affect responses.
Written by elseif from the cluster below · every claim links back to a sourceThe three things worth knowing
Vary support is now available in Cache Rules on every plan.
You can normalize known negotiation headers or pass exact values through to the origin when those small differences matter.
You can bypass cache when the variation is too unpredictable.
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What the cluster adds up to.
The event ships Vary support in Cache Rules on every plan, giving engineers control over how Cloudflare handles request header variations that affect responses.
Vary is described as an ugly, kludgy HTTP mechanism with poor interoperability, but it remains necessary for correct caching of content that varies by request headers.
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The analysis must state what changed, what adopting it costs, and where it stops working.
The analysis must not retell the linked article in order, and must highlight differences across feeds as valuable.
Written by elseif from the cluster below · checked for specifics the sources never containedTHE CLUSTER