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  1. There are no additional versions of the image links on the page.
  2. Users do not force clear cache
Charlie
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  • Ummm... what exactly is your question? – CharonX Sep 19 '18 at 10:26
  • @CharonX thanks for the reply In short, browser cache expiration rules. I found some answers, but still not very clear. [https://stackoverflow.com/questions/2869800/how-long-are-files-usually-kept-in-a-browsers-cache](https://stackoverflow.com/questions/2869800/how-long-are-files-usually-kept-in-a-browsers-cache) – Charlie Sep 20 '18 at 06:29

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