In this page: (https://docs.digitalocean.com/products/spaces/how-to/use-aws-sdks/), it says: “Using presigned URLs does not allow transferred files to be cached when using the Spaces CDN. Attempting to do so may result in double the bandwidth charge without the CDN’s performance benefit.”

That reads like it’s saying that you can’t use presigned URLs with the CDN. But elsewhere, such as (https://docs.digitalocean.com/products/spaces/how-to/enable-cdn/), it explicitly says “You can also use presigned URLs with the Spaces CDN.” So can you clarify the note about caching and presigned URLs?