docs(web): note browser_ttl: respect_origin in Cache Rule#13
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After PR #12 deployed, live Cache-Control returned max-age=14400 from Cloudflare's zone-level Browser Cache TTL default, overriding origin max-age=300. Patched the existing rule (id b85abcfdb1fa4d07a160e88f7cc4fafd) via API to add browser_ttl.mode: respect_origin. Live now serves origin max-age on HTML/metadata paths while keeping the 4-hour zone default for static assets and content-addressed raw files where it's actually desired. This commit keeps the README accurate; the Cloudflare rule itself was updated out-of-band via API.
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Documentation-only follow-up to PR #12.
After #12 deployed, live `Cache-Control` on HTML pages was `max-age=14400, stale-while-revalidate=3600` instead of the documented `max-age=300, ...`. Root cause: Cloudflare's zone-level Browser Cache TTL default (4hr) overrode origin's lower `max-age=300`. Edge caching worked correctly (origin Cache-Control was honored for edge TTL); only the browser TTL was being inflated.
Fix was a one-line addition to the existing Cache Rule (rule `b85abcfdb1fa4d07a160e88f7cc4fafd`, ruleset `bec0ea98e0444bcaaf518d626b4c47e2`): `browser_ttl.mode: respect_origin`. Verified live before this commit:
This PR is just the README catching up — the rule fix is already live.