To Setup Vorlon you need to install it using npm npm i -g vorlon and then run vorlon. It will start your server on port 1337. You need to enable Vorlon.JS by adding <script src="http://localhost:1337/vorlon.js"></script> tag to your app.
Similar product was also available in the name of weinre (Web Inspector Remote), which is a debugger for web pages. The main difference between weinre and Vorlon is weinre only supports Chrome browser whereas you can run Vorlon on any browser.
Vorlon.JS Demo : http://www.vorlonjs.com/#demo
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