Nitro's cached handler renders from a header-less copy of the request, so
under swr route rules useJournalApi, /rss.xml and the sitemap source
forwarded only the Nuxt peer and every cache miss shared one Journal API
rate-limit bucket (deferred in Phase 16). A Nitro plugin records
x-forwarded-for plus the peer in event.context.journalForwardedFor on the
request hook; the three callers forward it. Same key as the host app's
workaround, which keeps working. The acme SSR smoke's x-forwarded-for check
on the now route-cached playground is the test.
- privateRevalidate sets max-age=0 on cache-control values with s-maxage
- server/plugins/journal-revalidate.ts wraps res.setHeader per request, so
Nitro's 200 and h3's 304 answers both carry it
- purge-check: max-age=0 on 200 and 304, purged _payload.json, a second
purge after re-caching, X-Real-IP refused, 404 on a server without a token
- README: cachePurgeToken row and a Site cache purge section
