SameSiteLaxStrict

SameSiteLaxStrict is a cookie attribute introduced in the SameSite attribute specification in order to prevent cross-site request forgery (CSRF) attacks.

The SameSite attribute is used to specify whether or not a cookie should be sent with cross-site requests. There are three values for the SameSite attribute: None, Lax, and Strict. The SameSiteLaxStrict value is a specific combination of the Lax and Strict values.

When set to SameSiteLaxStrict, a cookie will be sent with a GET request from a different site, as well as with a POST request from the same site. This allows for a balance between security and functionality. However, the cookie will not be sent with a POST request from a different site, thereby providing a level of protection against CSRF attacks.

SameSiteLaxStrict is considered a more secure option than the Lax value, as it provides additional protection against certain types of CSRF attacks. However, it may break certain websites that rely on cross-site requests for their functionality.

In terms of implementation, the SameSiteLaxStrict value is typically set using the HTTP Set-Cookie header when the cookie is first set. The attribute may also be set using the Cookie header in a request.

Overall, the SameSiteLaxStrict attribute provides a balance between security and functionality, and should be considered when working with cookies and CSRF protection.