Arch Linux

When you go to a package's page ( https://aur4.archlinux.org/packages/mingw-w64-flac/ ), the "Keywords" text input widget from the search box automatically receives keyboard focus, because it uses the "autofocus" property:

<input type='text' name='K' size='30' value="" maxlength='35' autofocus="autofocus" />

This is a bad idea, because when you go to a package's page, it's unlikely you're going there to perform a search. It's much more likely that you'll want to look around, read the comments, etc. Because that text input widget has the keyboard focus, you can't use the arrow keys to scroll the page. You can't use the keyboard to do anything but type words there, actually, until you press Escape. (I use Vimperator...)