The (very attractive) charts do not display without JavaScript enabled. Surely this is a textbook example of where graceful degradation would come in handy, as

The (very attractive) charts do not display without JavaScript enabled. Surely this is a textbook example of where graceful degradation would come in handy, as a simple image without interactivity is still useful. Also the annotations, which are simple text, do not show up without JavaScript. This is even worse: if there is anything HTML is capable of doing, it is putting text on a screen!