alertify.confirm() returns OK and not CANCEL when ENTER KEY Pressed and CANCEL is default

[dbareis]

I am calling "alertify**.confirm()**" with these options:

• closable: false
• closableByDimmer: false
• defaultFocus: "cancel"
• frameless: false
• maximizable: true
• pinnable: true
• resizable: true
• title: "A Title

If I don't mouse click the dialog and press ENTER, it response with CANCEL (good).
If I mouse click the anywhere dialog (not a button) and press ENTER, it response with CANCEL (bug). Clicking the dialog should not change the focus.