clawbot
3f487ee0ce
check / check (push) Canceled after 0s
A cached image was served until eviction, so a change at the same URL was never picked up. After 24 hours a request checks the source with upstream, sending its stored ETag and Last-Modified. A 304 renews it with no download or conversion. New bytes replace it, and older variants are converted again. A failed check serves the cached image and puts the URL in the negative cache. Images not checked for 30 days are evicted. Variant rows keep the source's ETag and Last-Modified, so a variant whose source was evicted is checked the same way. A variant file's modification time is its source's check time when it was made or renewed, so a hit reads no database row. Model: opus-5-5