October 26th, 2019

?fbclid

As some of you might have noticed, Facebook started adding a tracking token to all URLs as a query string "?fbclid=XXXXXXXXX". I don't know how it works, exactly. Perhaps it rattles to FB when people re-inject these links into FB after they cycle through other social media. Either way, today I found a website that innocently fails to work when shared on FB: Whomp. If one tries to share a comic strip, such as "It's Training Men", FB appends its token, and makes the URL invalid.