Justin Trudeau trolled for 2011's 'porn site QR code problem' post. Here's what happened back then

Canadian Prime Minister Justin Trudeau's 2011 social media post about a QR code mishap resurfaced amidst criticism of his attendance at a Taylor Swift concert during anti-Israel protests. The old post, regarding a porn site link, was an April Fool's joke, but has returned to haunt him online. Trudeau condemned the Montreal riots and called for accountability.