Problem with Web components in Chrome (@HtmlImport, Elements Addon)

Hello,

I’m trying to create simple client side integration with the
Elements addon
. It would be image carousel based on
this web component
. I’m trying to follow
this example
. My project can be found
here
. Problem is that my test project is working just fine in Firefox and Edge but not on Chrome. I’m a bit lost since no errors are getting thrown. I have a feeling this might be because of shadow/shady dom configuration with Polymer?

Thanks!