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The cookie protocol already works this way, and has for as long as cookies have existed. The issue is that a website can load content from a third-party domain,
by gbhn 15y ago
The cookie protocol already works this way, and has for as long as cookies have existed. The issue is that a website can load content from a third-party domain, and the historical cookie protocol implementation has historically treated those requests as cookie-able. (Hence "tracking pixels," third-party ad services and stats collection, etc.)
The demo mentions the privacy concerns of third-party cookies, but does not mention that there are significant positive uses for such cookies. In the demo, reference.com sets cookies for thesaurus.com and dictionary.com, which are different domains run by the same operator. Such cookies allow the operator to provide customized services across the domains. Third-party cookies allow for richer embedded-content experiences. Video is a great example of that.
The revenue sites can get from third-party cookied ad networks is significantly higher than from unpersonalized third-party ads. Large sites like HuffPo and NYT are able to sell a lot of their premium inventory directly, so a big reduction there is likely to disproportionately affect smaller sites.
- Sander_Marechal 15y agoI believe rohit89 means something else. Imagine you visit IMDB, which contains resources from doubleclick.net that set a doubleclick.net cookie. Next, surf to the WSJ which also has doubelclick.net content. Your browser could simply not send the doubleclick cookie because it knows that it came through IMDB and not through the WSJ. In order to do this, a browser (or extension) would need to track through which sites a 3rd party cookie was set, and only send the 3rd party if you're on that same site again. Else it should just pretend there is no 3rd party cookie. I'd definitely install an extension that would implement this process.
- rohit89 15y agoYup, that's what I meant. Sandboxing on a per tab basis. To put it another way, each new tab you open is like a new incognito session.