Hacker News new | ask | show | jobs
by Oppertunity123 2369 days ago
Probably a http request tracking ID that can be used for debugging the request.
1 comments
ceejayoz 2369 days ago
It's a "Facebook click ID" and it's likely intended to evade Safari's "Intelligent Tracking Prevention" on third-party cookies.
link
jtbayly 2368 days ago
This. We knew this was coming when Safari added that.
link