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AI-generatedCan FailSafe keep serving stale entries beyond StaleWhileRevalidateDuration when the factory consistently throws?
FusionCache v2.x implements a stale‑while‑revalidate strategy that returns immediately stale data while an asynchronous refresh runs. The StaleWhileRevalidateDuration controls how long the stale entry remains valid after expiration. When the factory delegate throws during a background refresh, the library logs the error and preserves the stale entry until th
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