Netcookies.zip

: Cookies are sent on top-level cross-site navigations and first-party requests.

This report summarizes the technical specifications and implementation details for handling cookies within .NET environments, specifically focusing on the 2019 draft standard for attributes and persistent cookie management. 1. SameSite Attribute Implementation

: On Windows systems, persistent cookies are typically stored in the user's shell:cookies folder, though they may also appear in temporary internet files. 3. Key Technical Considerations Work with SameSite cookies in ASP.NET - Microsoft Learn netcookies.zip

The 2019 IETF draft standard for cookies is natively supported in .NET to mitigate Cross-Site Request Forgery (CSRF). Developers can control this through the HttpCookie.SameSite property.

: In modern updates, Session State and Forms Authentication cookies default to SameSite=Lax . Property Values : Strict : Cookies are only sent in a first-party context. : Cookies are sent on top-level cross-site navigations

: No SameSite attribute is sent, leaving the behavior to browser defaults. 2. Cookie Lifecycle and Persistence

: Created by setting the Expires property. Without an expiration date, cookies reside only in the browser's memory and are lost when the browser closes. Developers can control this through the HttpCookie

: To delete a cookie, its expiration date must be set to a past date (e.g., DateTime.Now.AddDays(-1) ) and then added back to the Response.Cookies collection.