[deburo]

Did you guys notice that upon returning from a link to yammer to the github page via the back button, a bunch of cards are visible until you scroll?

[unindented]

Yup, that's because those hovercards render on `componentDidMount`, and the styleguide renders all components on page load. It's a bit janky, but it only affects the styleguide, so it's low priority.

Disclaimer: I work on Yammer, and I've contributed to this project.