Is this preview generated on the fly every time someone clicks on the attachment, or is the preview also stored in the database and only regenerated when there has been a change?
Using Confluence 5.7.
As far as I know, the preview is performed when you open the page, and every time you open that page. I'm not 100% sure since I couldn't find the article stating specifically that, so I'll leave this question open as such someone might have detailed information on this procedure.
Two vulnerabilities have been published for Confluence Server and Data Center recently: March 20, 2019 CVE-2019-3395 / CVE-2019-3396 April 17, 2019 CVE-2019-3398 The goal of this article is...
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