We've been loading the National Weather Service radar (https://radar.weather.gov) in a web app for a few months now, and so far it's worked well. However, a few days ago they changed something and I'm no longer able to get it to render properly.

So far our app has been dead simple: just load the URL, and include a couple of clipart shapes over the header/footer in the Layout with text to provide our own title, rather than trying to do anything fancy with the web app like scrolling... but it still won't load.

Is anyone else doing this? Any ideas what I might be missing to make it load?