Re:Please stop using CDNs for external JavaScript libraries
by evilduck on Sunday October 11, 2020 @12:45PM
(#24747074)
Wouldn't the act of timing a download mean that I download and pollute my cache with new assets from the site trying find where else I've been? Does this only work for the first site that tries to fingerprint a browser in this way?
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Re:Please stop using CDNs for external JavaScript libraries
by curryst on Sunday October 11, 2020 @02:19PM
(#24747843)
Is there a noCache option? Or can JS remove entries from the cache to reset it?
Someone below mentioned doing requests for a large image that requires authentication. Short response time means the user isn't logged in (they got a 403), long response time means they downloaded the image and are logged in.