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ryan
7e6b9e7c2f
EnsureCompressedImageCache passed the arriving caller's request context into the singleflight body, which runs once for every concurrent requester of that cache key. If the first client disconnected, gin canceled the context, the shared generation aborted, and every follower received that failure and fell back to the uncompressed original. Detach cancellation with context.WithoutCancel so trace values still propagate but the shared work outlives any single requester.