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by shawabawa3 4152 days ago
In the article it mentions it only lets you see the article if you have the tracking cookie from the ad
1 comments
thaumaturgy 4152 days ago
That part made me scratch my head a bit, because they shouldn't have access to Yahoo cookies.

I think the article meant the http referrer needed to be yahoo?

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coldpie 4152 days ago
Possibly. Can you set cookies over JavaScript? Ad networks allow ad providers to inject arbitrary JavaScript into their clients' websites.
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thaumaturgy 4152 days ago
You can set and read cookies using Javascript, but due to same-origin policies that are present in all modern browsers, it shouldn't be possible for a non-Yahoo domains to read cookies set by Yahoo.

There might be some exception that I'm not aware of, but that would seem like a pretty serious browser security issue.

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