Common CSP Myths Debunked: Mistakes and Fixes
Content Security Policy has a reputation problem. A lot of teams either treat CSP like a magic anti-XSS shield, or they avoid it because they assume it will break everything. Both takes are wrong. CSP is powerful, but it’s also easy to misuse in ways that give you a nice-looking header and very little real protection. I’ve seen plenty of production policies that look serious because they’re long, but collapse the moment an inline script sneaks in or a third-party script gets too much trust. ...