The post below made me investigate the links at the bottom of the page.
Opt in or out of cookie tracking
To opt in or out of cookie tracking, scroll down all the way to the bottom of any page on Stack Overflow or a Stack Exchange Site. Under the “Company” heading click “Cookie Settings”. There you can change your cookie preferences.
– Des's [Staff] Update to our Advertising Guidelines © CC BY-SA 4.0
I mistook the "Cookie Policy" link for the "Cookie Settings" link and discovered it was broken.
The "Cookie Settings" link is sometimes accessible when JavaScript from cookielaw.org is disabled. If you have JavaScript enabled then a popup should show up.

