As I’m sure you know, I like W3 Total Cache – it’s a fairly painless way to implement a variety of methods to speed up a site and reduce server resource usage. I especially like being able to offload media library and other files to a content delivery network like Amazon S3. Earlier today I noticed that for a particular page only some of the images were pointing at their S3-mirrored versions. Apparently I’m not the only one having this problem. In my case at least, the fix was easy: clear out the unsuccessful file transfers queue and refresh the cache.
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