Rapid glitching on demo page

[duhaime]

Just FYI, the demo page displays a strange rapid glitch when a user has scrolled to a particular location on the page:

As you can see at the end of the gif, the glitching disappears if one scrolls up (or down) just slightly from the mysterious spot.

This was observed in recent Chrome on OSX.

window.innerWidth: 761
window.innerHeight: 776
window.scrollY: 981