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Sep 27, 2019
Feb 28, 2020
CMS Core
Closed, Fixed and tested
From CMS 11.9, there are 2 cookies EPi:StateMarker and EPi:ViewedPages.
With bot requests (i.e load impact or from an HttpWebRequest from code, not from a browsers), when these cookies are set, .Net framework adds the "no-cache="Set-Cookie"" to the Cache-Control header automatically makes the cache server not caching the whole response.
This can have a negative performance impact on the cache.
Expect: Cookies not set when doing bot requests.