@bugsnag/js

Universal Javascript error reporting. Automatically detect JavaScript errors in the browser and Node.js, with plugins for React, Vue, Angular, Express, Restify and Koa.

@vaadin/router

Small and powerful client-side router for Web Components. Framework-agnostic.

cable_ready

CableReady helps you create great real-time user experiences by making it simple to trigger client-side DOM changes from server-side Ruby.