Host Server is a part of Dev Tools+
It allows for you to access a HTTP server on your computer via your Android Device.
Dev Tools+ is free from Google Play - https://play.google.com/store/apps/details?id=me.kennydude.dev.urlopener
To install this tool run
npm install -g devtools-hostserver
Open Dev Tools+ on your device
Go to Host Server
Plug in to computer
Run on computer:
devtools-hostserver --proxy:port 3000
(change port number)
Should all work.
HTTP GET/POST work. Not sure about anything else (anything TCP wise should work but it works mainly by strings unless you want to improve it), but it works! :D