Accessibility "key/short keys" issues

[ositaka]

Hello, a few weeks ago I've sent you a tweet saying that Shift + Spacebar should go "up" and currently is doing "down" as just pressing Spacebar.

In the meanwhile I've found more 2 bugs:
• Alt + Arrow Left or Cmd + Arrow Left show go back on history (-1) and doesn't work this combination (on both Windows and Mac)
• mouseWheel (the middle-button in "mousedown") doesn't "drag/drop" the page as it does on native scroll (on Windows); I believe this bug doesn't occur on Mac's, since it uses the "magic mouse".

I hope you can find it helpful.