Sorry about that. I broke this while [rolling out support for fixed topbar](https://meta.stackexchange.com/questions/312501/new-global-preferences-keyboard-shortcuts-and-sticky-topbar) across all network sites.

There's no graceful way to make this work right now with the custom bar in play as well. Not without a fair amount of effort, at any rate. Since Ask Ubuntu is going to get [a new theme soon](https://meta.askubuntu.com/questions/18038/ask-ubuntu-new-site-theme-coming-soon), I'm deploying a change now to defer fixed topbar support until that time.