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fix: ISR 404 pages should be cached ephemerally #2233

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Merged
merged 4 commits into from
Jul 27, 2023
Merged

fix: ISR 404 pages should be cached ephemerally #2233

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75b4dc9
fix: ensure isr 404 pages are only cached for 60s
orinokai Jul 26, 2023
ec99776
chore: refactor isr 404 code under main SWR logic
orinokai Jul 26, 2023
2b71788
chore: remove unnecessary 404 code from list of ephemeral codes
orinokai Jul 27, 2023
c57e831
Merge branch 'main' into rs/isr-404-fix
kodiakhq[bot] Jul 27, 2023
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15 changes: 11 additions & 4 deletions packages/runtime/src/templates/getHandler.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -171,17 +171,24 @@ const makeHandler = ({ conf, app, pageRoot, NextServer, staticManifest = [], mod
// ODBs currently have a minimum TTL of 60 seconds
result.ttl = Math.max(ttl, 60)
}
const ephemeralCodes = [301, 302, 307, 308, 404]
const ephemeralCodes = [301, 302, 307, 308]
if (ttl === ONE_YEAR_IN_SECONDS && ephemeralCodes.includes(result.statusCode)) {
// Only cache for 60s if default TTL provided
result.ttl = 60
}
if (result.ttl > 0) {
requestMode = `odb ttl=${result.ttl}`
}
}
multiValueHeaders['cache-control'] = ['public, max-age=0, must-revalidate']
}

// ISR 404s are not served with SWR headers so we need to set the TTL here
if (requestMode === 'odb' && result.statusCode === 404) {
result.ttl = 60
}

if (result.ttl > 0) {
requestMode = `odb ttl=${result.ttl}`
}

multiValueHeaders['x-nf-render-mode'] = [requestMode]

console.log(`[${event.httpMethod}] ${event.path} (${requestMode?.toUpperCase()})`)
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