This is a Question from a MetaCTF FlashCTF:

"We're auditing some websites to check if they're GDPR compliant, and I'm pretty sure this site isn't..."

Challenge Answer:

Navigating to the Application Storage tab, we can see a cookie called "flag". The value of this cookie is the flag for the challenge: MetaCTF{n0nc0ns3nsu4l_c00ki3_cr4ckd0wn}