The goal with this project is to just have a simple, stand alone, drop in static sever script to just host various static projects over http rather than the file protocol. I have wrote a blog post in which I write about this kind of simple static sever script in detail.
When it comes to using express there is a built in static sever that can be used to make quick work of this sort of thing also, and there is also the official serve index middle ware for express that works great. Although these solutions work great, they both require that I use express as part of the static for a nodejs project. Not such a bad thing as express is a great framework, but in the event that I want to do something from the ground up I will want some kind of vanilla javaScript solution for this sort of thing. That is where these scripts come into play.