Passing messages from iframe to parent window (cross-domain)

Question

I need to pass a message from an iframe to the parent window. The parent window and iframe window are from different domains so I am running into difficulty with same origin restrictions (ie, my attempts to access window.parent from the iframe are blocked).

I have been able to pass messages from the parent window to the iframe using the window.location.hash method as described in this article . However, the method does not appear to work for sending messages from the iframe to the parent window.

I must also find a solution that works in IE7 and IE8.

Does anyone know how to do this?

I'm about to give up and build a web API to facilitate messages from the iframe to the parent window.

Answer 1

Take closer look at window.postMessage API. It allows you to send message across all domains and between iframes. Perfectly works on IE as well