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Yes, but isn't only the small preview image meta stored for future use?

Anyway, already implementing other solutions.

It looks like it caches all pictures. In fact I encountered an issue one time when I updated a picture on my server using the same URL and the image wouldn't change in the Steemit post after reloads and clearing the browser cache. Eventually I renamed the picture, changed the URL and it was able to update.

Great you're using other solutions. It's probably not worth going through the trouble of updating all your links in previous posts.

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