Contact emails [email protected], [email protected]
Spec https://github.com/WICG/CHIPS Summary Given that Chrome plans on obsoleting unpartitioned third-party cookies, we want to give developers the ability to use cookies in cross-site contexts that are partitioned by top-level site (or First-Party Set, where the site uses that feature) to meet use cases that are not cross-site tracking related (e.g. SaaS embeds, headless CMS, sandbox domains, etc.). In order to do so, we introduce a mechanism to opt-in to having their third-party cookies partitioned by top-level site using a new cookie attribute, Partitioned. Link to “Intent to Prototype” blink-dev discussion https://groups.google.com/a/chromium.org/g/blink-dev/c/hvMJ33kqHRo Goals for experimentation CHIPS is a new, opt-in technology meant to preserve a set of use cases (e.g. third-party embeds) that may break once third-party cookies are phased out while preventing cross-site tracking. We need to validate whether the proposed syntax and semantics solve these use cases prior to third-party cookie obsoletion by giving developers a way to test it in a scaled manner and provide early feedback. We hope to validate ergonomics, deployability, and backward compatibility. Experimental timeline The experiment will start in M100 and run from March 31st, 2022 until June 30, 2022. Any risks when the experiment finishes? Since Chrome will not send and may delete partitioned cookies when it is started with the feature disabled, sites that set cookies with the Partitioned attribute during the experiment will no longer have those cookies available on clients' machines. Reason this experiment is being extended N/A Ongoing technical constraints None. Debuggability We have coordinated with the DevTools team to surface cookie partition keys to developers in DevTools. We have added a new cookie inclusion reason with a debug string when sites set Partitioned cookies incorrectly. We may also support surfacing partitioned cookies that are not included in requests because their partition key did not match the top-level site in DevTools. Will this feature be supported on all five Blink platforms supported by Origin Trials (Windows, Mac, Linux, Chrome OS, and Android)? Yes. Link to entry on the feature dashboard <https://www.chromestatus.com/> https://www.chromestatus.com/feature/5179189105786880 -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAMCNMFRxpqxLUXAEfFqcACt-S7A8Y_6Q9is%3DCZJskiYuby0qJA%40mail.gmail.com.
