Resizing an iframe based on content

Question

I am working on an iGoogle-like application. Content from other applications (on other domains) is shown using iframes.

How do I resize the iframes to fit the heigh

Answer 1

iGoogle gadgets have to actively implement resizing, so my guess is in a cross-domain model you can't do this without the remote content taking part in some way. If your content can send a message with the new size to the container page using typical cross-domain communication techniques, then the rest is simple.