Thursday, January 16, 2020
This is a cross-post from the Chromium developer blog and is specific to how changes to Chrome may affect how your website works for your users in the future.
In May, Chrome announced a secure-by-default model for cookies, enabled by a new cookie classification system (spec). This initiative is part of our ongoing effort to improve privacy and security across the web.
Chrome plans to implement the new model with Chrome 80 in February 2020. Mozilla and Microsoft have also indicated intent to implement the new model in Firefox and Edge, on their own timelines. While the Chrome changes are still a few months away, It's important that developers who manage cookies assess their readiness today. This blog post outlines high level concepts; please see SameSite Cookies Explained on web.dev for developer guidance.