iframe check code - twitter 발췌
웹 2012. 2. 22. 11:14 |click jacking 방어
if (window.top !== window.self) { // are you trying to put self in an iframe?
try {
if (window.top.location.host) { // this is illegal to access unless you share a non-spoofable document domain
// fun times
} else {
bust(); // chrome executes this
}
} catch (ex) {
bust(); // everyone executes this
}
}