JS Security Issue With Opera 11.01, After Moving From Server A To B

I have a outer HTML-document (subdomain1.server-a.de) with an iFrame and inner HTML-document (subdomain2.server-a.de). The inner script should send & receive AJAX-requests to s

Solution 1:

Sounds like it might be a timing issue, i.e. the outer document tries to initiate the request before the inner document has run the script that sets document.domain?? Or perhaps Opera has cached the IFRAME contents and you initially loaded a version where the script inside the IFRAME was wrong and didn't set document.domain correctly?

Solution 2:

I suggest you forget the document.domain approach and use window.postMessage() (AKA HTML5-style cross-document messaging) instead. http://www.whatwg.org/specs/web-apps/current-work/multipage/comms.html#web-messaging

Solution 3:

Had the same absurd issue with JS calls between parent and an iframe on a different subdomain - worked everywhere, but failed under Opera with the above mentioned error.

Removing ~/.opera folder (Opera settings folder in Linux) solved this, and another one very weird problem.

Cheers.