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To isolate the cookies and JavaScript of a domain from other domains. For example, Facebook is notorious for reading third-party site cookies and vice-versa. A
by thomastjeffery 4y ago
To isolate the cookies and JavaScript of a domain from other domains.
For example, Facebook is notorious for reading third-party site cookies and vice-versa. A collection of associations (X Facebook user visited Y sites) is then sold as a portfolio for targeted advertising.
I agree this isn't the feature that provides the most utility; it's simply the one that was originally at the front of the devs' minds.