JavaScript to detect if the parent frame is of the same origin?
I would do something like:
var sameOrigin;try{ sameOrigin = window.parent.location.host == window.location.host;}catch (e){ sameOrigin = false;}return sameOrigin;
I use this method to tell if an iframe contains local content,
but you can pass it window.top from the iframe just as well
function islocal(win){var H=location.href, local= H.substring(0, H.indexOf(location.pathname)); try{ win=win.document; return win && win.URL && win.URL.indexOf(local)== 0; } catch(er){ return false }}//test case alert(islocal(window.top))
Try this:
function parentIsSameOrigin(){ var result = true; if (window.parent) { result = Boolean ( // more precise modifications needed here window.this.location.href.indexOf(window.parent.location.href) == 0 ); } return result;}