Fix test server API

test-server/server.js

   res.send(req.headers)
 })
 
-app.post('/upload', bodyParser.urlencoded({ extended : true }), (req, res) => {
+app.post('/upload_urlencode', bodyParser.urlencoded({ extended : true }), (req, res) => {
   console.log(JSON.stringify(req.headers))
   console.log(JSON.stringify(req.body))
   res.status(200).send(req.body)