Public CDNs Are Useless and Dangerous

Once upon a time, loading common scripts & styles from a public CDN like cdnjs or Google’s Hosted Libraries was a ‘best practice’ - a great way to instantly speed up your page loads, optimize caching, and reduce costs. Nowadays, it’s become a recipe for security, privacy & stability problems, with near-zero benefit. Just last week, a security researcher showed how this could go horribly wrong .