### App-route resources
- [webcomponents.org](https://www.webcomponents.org/element/PolymerElements/app-route/elements/app-route)
- [Encapsulated Routing with Elements - Polymer Project](https://www.polymer-project.org/blog/routing)
- [Build Your First App with Polymer and Web Components](https://auth0.com/blog/build-your-first-app-with-polymer-and-web-components/)
- [Polymer Tips: Prevent Inactive Views Responding To Other Route Changes](https://www.captaincodeman.com/2017/05/18/polymer-tips-prevent-inactive-views-responding-to-other-route-changes)
- [app-location fires 'route-changed' event twice on a single route change · Issue #173 · PolymerElements/app-route](https://github.com/PolymerElements/app-route/issues/173)