how SameSite attribute added to my Asp.net_SessionID cookie automatically?

Question

Recently samesite=lax add automatically to my session cookie! this attribute just add to sessionID: \"Set-Cookie ASP.NET_SessionId=zana3mklplqwewhwvika2125; path=/; H

Answer 1

Works for me. Added into my web.config file :

Upgrade to .Net Framework 4.8 + installation patch : 2019-12 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 1909 for x64 (KB4533002)