My problem is, that if that user is on a page inside an iframe that allows them to upload a file, the uploads don't work. For example if I go to yahoo!mail inside an iframe and try to add attachments when composing an email, I get the 'please wait while we upload your attachments' page, but it just hangs there forever. Any ideas?
Background info: I'm working on a portal site, and one of the features is an iframe browser. This way my users can surf the web and keep my portal surrounding it (as shown in the screenshot). The user types in the address into the text box and clicks 'Go' and then that web page loads in the Iframe.