initial scale: 1.00
events after prevented pinch: 1
ctrlKey: true
shiftKey: true
cancelable: true
defaultPrevented: true
deltaX: 0
deltaY: -4.8790
deltaMode: 0
scale after prevented pinch: 1.00
events after unprevented pinch: 2
scale after unprevented pinch: 1.05
scrollY after unprevented pinch: 0
events after zero-delta pinch: 2
scale after zero-delta pinch: 1.05