Polymer on Flow with Javascript

Hello everyone!

I’ve been using Vaadin flow for a while and I can’t get external Javascript libraries to work properly on a polymer template. Usually what I do is I create parts of the web in Polymer templates and then I assemble everything on Java, I find that really practical but I don’t know if its a good practice. Anyways, the problem is that sometimes I need a Javascript library inside my html page so I import them in the polymer template but this DOES NOT works. My big problem is that now I need to include a Twitter feed and it uses javascript. So I would like to know if calling external Javascripts on a polymer (dom-module) template is possible.

Thank you and great framework!