That seems like quite a dumb feature, since one could just press the back button to cancel. It's not like people still use Internet Explorer 3 or something. "Backspace" to go back is also really annoying simply because it seems rigged to be accidentally pressed. Another one I hate is Ctrl-W which closes any window (like Alt-F4 isn't enough), and it's right next to Ctrl-S for save. I totally need to start up a thread for annoying shortcut keys. 