I tried searching for other threads related to this issue but didn't find anything. I am embedding liveboards via normal embedding and one with prerendering. When I use prerendering I lose a container or something because I cannot get my background to fill the space created by a prerendered iframe. here is a screenshot of the behavior. The black gradient background does not fill down. If I show you a normally loaded liveboard embed it has not problem filling behind and down the height of the iframe. I will provide more code if needed but thought maybe this is something that was an obvious or known issue.