touchevent ：Cannot read property 'x' of undefined

[tczj199076]

Version

3.1.0

Test Case

http://jsfiddle.net/fabricjs/Da7SP/

Information about environment

Nodejs or browser?
Which browsers? chrome,firefox

Steps to reproduce

I use wacom，but the browsers renturn error 'Cannot read property 'x' of undefined'

Expected Behavior

Actual Behavior

[asturur]

hi, i do not have a wacom tablet, and i do not know how it works.
What kinds of events it generates?

[tczj199076]

hi, i do not have a wacom tablet, and i do not know how it works.
What kinds of events it generates?

I use the pen of wacom，draw in canvas，and it tips me Cannot read property 'x' of undefined，I use chrome，but when I set the mobile model of chrome，it works，I don't know why

[pinstripe-potatohead]

I am facing a similar issue. I deployed a fabricjs drawing application, which users say works with mouse and touch devices, and with certain graphics tablets (like Wacom one), but not with others (eg, Wacom Intuos).

Unfortunately, I don't have access to a wacom intuos device, so don't know what the issue is. Browser console doesn't seem to throw an error either.

I'm using fabricjs 3.2.0, with pointer events enabled.

** Edit: Figured out that the issue happens on Chrome/Win 10 when the stylus is used in pen mode. Opened another issue #5773

[asturur]

please check on #5785