I want to write an app based on JavaScript that enables users to drag&drop images on a site into a <canvas>. There is a code example here and it's working quite well - with a mouse. The same effect doesn't work when I use a stylus or digital pen as an input device. Adding "-webkit-user-drag" property or "draggable" attribute to the image didn't help.
How can I achieve this (I'm using either Chrome or Edge)?