Instagram/tweeter/youtube problem

first of all, let me just say that this is a great plugin, the many options to set from are making the post grabbing much more easier and close to perfection (and it's not easy to get there because the post's structure is different from site to site). I have a problem that i couldn't manged well regarding the iframe containers, most of my tries in different sites didn't pull the element well, in my case I'm talking about the tweeter and the Instagram in-content posts and it also happens in youtube's iframes in half of the cases). I'm using the "Search Query String" for grabing divs, it did helped me a-lot to pull specific content and discard unneeded ones, but this iframe problem keeps repeating and in most cases even after defining the specific divs it didn't pull it and pulls only the structure behind it (like the placeholder space or background frames)