docs: deployment recipe for middleware.ClientIPFromXFFTrustedProxies()#1111
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…Proxies Replace the counting prose and ASCII diagram with a recipe table mapping common deployments to numTrustedProxies values, plus a "verify with a known IP" step. Steer users toward ClientIPFromXFF with explicit CIDRs (added pointers to CDN-published IP lists from Cloudflare, AWS, Fastly, GCP) since CIDR-based trust cannot off-by-one. Add one fail-closed test case. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Replace the counting prose and ASCII diagram with a recipe table mapping
common deployments to numTrustedProxies values, plus a "verify with a
known IP" step. Steer users toward ClientIPFromXFF with explicit CIDRs
(added pointers to CDN-published IP lists from Cloudflare, AWS, Fastly,
GCP) since CIDR-based trust cannot off-by-one. Add one fail-closed test
case.
Co-Authored-By: Claude Opus 4.7 (1M context) noreply@anthropic.com