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Safari does more than other browsers to prevent cross domain tracking. 3rd party cookies disabled by default, cookies in iframes considered 3rd party (so, block
by potench 7y ago
Safari does more than other browsers to prevent cross domain tracking. 3rd party cookies disabled by default, cookies in iframes considered 3rd party (so, blocked), and TIL it maintains a separate local cache for each domain to prevent fingerprinting a user across domains. I have a hunch you could probably drop 3rd party cookies using a <video> element (maybe for DRM stuff? Just a hunch I have because video-ad CPMs are consistent or better on iOS over android/desktop indicating perhaps advertisers know the user somehow). Awesome article, great reference links, super interesting!