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A comment on Why is Stack Overflow trying to start audio?. Parent comment

Re:Why is Stack Overflow trying to start audio? by londons_explore on Thursday June 27, 2019 @08:23AM (#20293759)
Ads are iframed, and don't have permissions to do anything to the host page.

Doesn't stop them fingerprinting the browser though

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Re:Why is Stack Overflow trying to start audio? by tinus_hn on Thursday June 27, 2019 @11:02AM (#20295020)
Typically ads are not in iframes, they are loaded by Javascript from the ad network and can do whatever they want.
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Re:Why is Stack Overflow trying to start audio? by smilliken on Thursday June 27, 2019 @11:13AM (#20295123)
There's multiple nested iframes and scripts loaded at every level. All variations are possible.
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Re:Why is Stack Overflow trying to start audio? by tinus_hn on Thursday June 27, 2019 @12:52PM (#20296196)
Sure, but obviously it’s more valuable if you give the ad access to your DOM so it can ‘optimize the ad placement’.
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