Storing Information In a URL

What is This? My Example   urlHosted is an experimental web app that misuses the part after the "#" of a URL to store and read data. The app is unhosted. See this definition from unhosted.org: Also known as "serverless", "client-side", or "static" web apps, unhosted web apps do not send your user data to their server. Either you connect your own server at runtime, or your data stays within the browser. This means this app neither stores nor sends any of your data to any server. Inst...