How do I use the new Construct iFrame plugin?

Can anybody provide a couple of examples on how to use the iframe plugin?

I've tried throwing multiple URL's at it, but it refuses to load. Pretty much the only one that does work is construct.net

I believe you're only to use secure pages, but I've not been able to get anything to work. I thought some people had youtube come up in an iFrame, but not for me. (The browser debug complains about the https I believe)

Primarily I hoped to load some client websites and maps via google.

I have been setting the URL on the iframe object. I also tried to use the event system with similar results.

Input?

Which URLs have you tried specifically? Some pages can block themselves from being shown in an iframe. So you can only choose pages that are allowed to be shown in an iframe. YouTube video embed URLs work fine though.