SpaceBar not working

[zhbzhbzhbz]

I use Chrome.
Assuming that I pressed SpaceBar, then the blue cover dismissed(unselected), then I pressed Up/Down, but the selected item will be the first one or the last one...
Thank you~

[zhbzhbzhbz]

I temporarily fixed this bug in JS file occasionally... But I don't know whether there are any unknown bugs in it.
Firstly, insert the code after Line 181

case 32:
    e.preventDefault();
    e.stopPropagation();
    that.selectHighlighted($list);
    return;

Secondly, remove the code at Line 276;
Thirdly(Optional), remove the code at Line 283~285. This change can make ↑/↓ always available no matter where the mouse is going to.