Ah - shoot - that's probably a recently introduced bug! My bad. I wanted to include the chart of this Show HN post itself on the home page (as an example), and

Ah - shoot - that's probably a recently introduced bug! My bad. I wanted to include the chart of this Show HN post itself on the home page (as an example), and that is apparently causing all sorts of weirdness. I'll try to figure it out. Sorry.