In-depth guides on clickjacking defense and web security.
June 2026
Paulos Yibelo's attack uses window.opener.location to swap windows between clicks -- no iframe, so framing headers do nothing. How it works and how to defend against it.
June 2026
ALLOW-FROM nullifies the entire header. default-src doesn't cover framing. Meta tags don't work for either mechanism. The sharp edges most guides skip.
May 2026
Frame-busting scripts are easily bypassed via sandbox attributes, double framing, onBeforeUnload, 204 flushing, and designMode. HTTP headers are the only reliable defense.