Web service giving 404 when called from Node JS

I have a REST web service which works fine (Response code 200) when invoked from any browser, curl or from any other REST client like Postman. However when I invoke it from a NodeJs application running locally, it is giving 404. Following the NodeJS code which calls this API.

var http = require('http');
var options = {
                  host: '<end_point>',
                  port: 80,
                  path: '<path>',
                  method: 'GET',
                  headers: {
                      'Content-Type': 'application/json'
                  }
               };

http.request( options, 
              function(res) {
                console.log('STATUS: ' + res.statusCode);
                console.log('HEADERS: ' + JSON.stringify(res.headers));
                res.setEncoding('utf8');
                res.on('data', function (chunk) {
                        console.log(chunk);
                    });
              }).end();

Suspecting a problem with above code, I tried to tweak it, but nothing worked. Is there any problem with above code?

The response headers when successfully invoked from Postman are

Content-Type →application/json
Date →Mon, 17 Apr 2017 10:25:03 GMT
Server →WSGIServer/0.2 CPython/3.4.5

via Ravi Chandra