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Display alerts for SameSite cookie changes in the developer console

Category
Network / Connectivity
Type
New or changed feature
Status
In developer trial (Behind a flag) (Chrome 76)
Intent stage
Evaluate readiness to ship

Summary

Show alerts in the developer console for “Cookies with SameSite by default” and “Reject insecure SameSite=None cookies” to warn developers of upcoming changes that may require their action.

Motivation

“Cookies with SameSite by default” and “Reject insecure SameSite=None cookies” will affect many sites using cookies that must be available in a third-party context. In order for developers to prepare for these changes and minimize breakage, we would like to show console messages to make developers aware of these changes and direct them to resources that will help them understand the changes and make the necessary changes to their sites.

Standards & signals

Docs: https://web.dev/samesite-cookies-explained/

Explainers: https://www.chromestatus.com/feature/5088147346030592 https://www.chromestatus.com/feature/5633521622188032

View on chromestatus.com