data.originalEvent.touches is undefined in new version of pixi

[Herbert]

hi guys,

i have updated my pixi from 4.3.5 to 4.5.1, and I found there is a little change in touch event

onTouchStart(e) {
    console.log(e.data.originalEvent.touches);

    // before originalEvent is TouchEvent so it has touches
    // new version originalEvent change to PointerEvent which does not have touches
}

somehow the originalEvent change from TouchEvent to PointerEvent which does not have touches,

I used to detect touches to prevent multiple touches, so I have two question

1. what cause this change?

2. is there any other efficient way to limit the touches on my game, in my case, I only hope 1 touch exist at the same time?

thanks to your help

[OSUblake]

It looks like touches are back in 4.5.2...

https://github.com/pixijs/pixi.js/issues/4040

And they added a isPrimary property to the event data, which would be true for the first touch.

console.log(e.data.isPrimary);