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Operation system of my server is Windows Server 2008 R2 SP1, and i updated latest security patch - KB4533012 on it, after the update, my ASP.NET system has a feature that post a request to a Flex grid, then display the swf grid in my aspx page, then i found the session was lost( using Fiddler), system was logout then whatever i did any actions.

what i found is a new property - SameSite has been supported in the new patch, the issue would be fixed if i uninstall the patch.

is there a bug between ASP.NET and Flex grid by using SameSite in http cookie?

appreciate for the help!

yuc
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1 Answers1

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the issue has been fixed by editing Web.config file following the steps:

  1. add sameSite = "None" to httpCookies
  2. add cookieSameSite = "None" to FormsAuthticaiton and SessionState
yuc
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