I'm trying to a make an element that uploads an image to the server. I'm using this component.
The problem is that if I use the above element with polymer 1.0, then it works like a charm but if I use it with Polymer 2.0 then some of its features like progress-bar and delete button don't work.
I'm using Bower to install this element and while installing this element(in polymer 2.0) I get many different choices like:
Which one should I choose?