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

(twitter.com)
550 points polskibus | 1 comments | 08 Feb 19 16:04 UTC | HN request time: 0.001s | source
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minimaxir ◴[08 Feb 19 17:20 UTC] No.19116441[source]▶
This example is likely not specifically targeting ad blockers, but ad scrapers for transparency: https://www.propublica.org/article/facebook-blocks-ad-transp...

> Our tool recognized ads by searching for that word. Last year, Facebook added invisible letters to the HTML code of the site. So, to a computer, the word registered as “SpSonSsoSredS.”

That article also links to this tweet in that paragraph.

replies(2): >>19116776 #>>19119051 #
yjftsjthsd-h ◴[08 Feb 19 21:54 UTC] No.19119051[source]▶
That has to destroy accessibility. I mean, a human using a screen reader is nearly equivalent to a scraper, so the whole thing seems problematic.
replies(1): >>19121171 #
1. efreak ◴[09 Feb 19 07:16 UTC] No.19121171[source]▶
Isn't a screen reader generally a third party program? Software like a browser has no idea if the click event comes from a local mouse or other software. Telling the difference between what type of software specifically, like RDP/VNC/TeamViewer, AutoIT/autoclicker, and accessibility software is even more improbable.