Nov 14, 2018 11:55 AM|PatriceSc|LINK
So it is about sharing an authentication cookie accross applications in a domain ? In your CookieAuthenticationOptions you would have CookieDomain=".mydomain.com" to scope the cookie to the whole domain and you'll need to use the same machinekey in all apps
so that it can be decrypted.
Edit: try maybe https://www.hanselman.com/blog/SharingAuthorizationCookiesBetweenASPNET4xAndASPNETCore10.aspx