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Archive of DNT deliverables
https://www.w3.org/TR/tracking-dnt/
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Purposes Extension: Replace reference to browser specific implementations of cookies with desired outcome/behavior. #90

Open jasonanovak opened 6 years ago

jasonanovak commented 6 years ago

In the July 23, 2018 Editor's Draft of Tracking Preference Expression (DNT)- Purposes Extension Addendum, the Introduction says:

These would deliver data similar to that delivered by [ITP]'s "partitioned cookies" now implemented in Webkit browsers, but only writeable by top-level sites, and only when Site-Specific consent had been given for the named third-party domain.

ITP and partitioned cookies is a Safari specific implementation. The implementation and partitioning evolved between ITP 1.0 (https://webkit.org/blog/7675/intelligent-tracking-prevention/) and ITP 1.1 (https://webkit.org/blog/8142/intelligent-tracking-prevention-1-1/) and may evolve in the future. There's also a difference in terminology that highlights the risk of incorporating browser-specific behavior in this note — Safari refers to partitioned cookies while other browsers refer to double-keyed cookies and there may be implementation or behavioral differences across them.

Rather than cite an evolving browser specific feature, discussing the desired outcome / data to be passed would make this document more robust in the long term.

michael-oneill commented 6 years ago

Agreed. I have removed the reference to partitioned cookies and ITP, and put more emphasis on the advantages to first-parties and third-parties over using standard cookies