Facebook adds 5 divs, 9 spans and 30 CSS classes to every post in the timeline

Re:Facebook adds 5 divs, 9 spans and 30 CSS classes to every... by CharlesColeman on Friday February 08, 2019 @12:29PM (#19116543)

So the technology to defeat this kind of obfuscation has already been developed and is reliable?

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Re:Facebook adds 5 divs, 9 spans and 30 CSS classes to every... by Someone1234 on Friday February 08, 2019 @12:35PM (#19116620)

Well a web browser has to render it correctly, so yes? A screen reader is just another type of browser at this point.

These techniques work because some blockers only support a limited subset of what a full browser can do (namely block resource locations and specific HTML elements).

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Re:Facebook adds 5 divs, 9 spans and 30 CSS classes to every... by barbecue_sauce on Friday February 08, 2019 @12:42PM (#19116712)

And rather insignificant to implement. All this protects against is low-effort document scraping. If they randomized it somehow, that would be a little harder to defeat.

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