connect-base 
Get the base url for Express/Connect apps
Use
Set up a server that echoes the requesting url:
var app = connect();
base = require("connect-base");
app.use(base());
app.use(function(req, res){
res.send(req.base);
})When we request it locally:
curl http://localhost:5000
> http://localhost:5000When we host it through a DNS server:
curl http://example.com
> http://example.comWe can also set the protocol, host, port, and path; maybe through a reverse proxy
curl -H "X-Forwarded-Proto: https" http://example.com
> https://example.comcurl -H "X-Forwarded-Host: test.example.com" http://example.com
> http://test.example.comcurl -H "X-Forwarded-Port: 8080" http://example.com
> http://example.com:8080curl -H "X-Forwarded-Path: /testing" http://example.com
> http://example.com/testingTesting
npm install -d
npm test
