Unable to get property 'tcp' of undefined or null reference

I followed few prerequisites steps from https://github.com/SAP/node-hdb/wiki/Develop-Chrome-Apps-for-SAP-HANA and also followed Readme.md from https://github.com/SAP/node-hdb

I will list down the steps here -

1. npm install hdb
2. npm install browserify
3. npm install chrome-net
4. node ./node_modules/browserify/bin/cmd.js -r buffer -r ./node_modules/hdb/lib:hdb -o ./hdb.js
   Step 4 so that hdb.js is created in root directory where my main.js (that contains connection code and query) and index.html are present.

Now my index.html has below scripts -

<script src="hdb.js"></script> <script src="main.js"></script>

And my main.js has below code--

var hdb = require('hdb');
var client = hdb.createClient({
host: HOSTNAME,
port: PORT,
user: DBUSER,
password: DBPASSWORD
});
client.connect(function (err) {
if (err) {
return console.error('Error:', err);
}
console.log(client.readyState); // connected
});

In above code, createClient works fine but when client.connect is called I am getting "Unable to get property 'tcp' of undefined or null reference" error in console.

Now for above error, when I referred https://github.com/SAP/node-hdb/wiki/Develop-Chrome-Apps-for-SAP-HANA, I could see they added an entry for tcp in manifest.json. But I am not developing chrome extension.

Can you please help, what am I missing here?

Start with the listed browserify command, hdb.js, main.js, index.html, and manifest.json, then compare the setup with the Develop Chrome Apps for SAP HANA wiki. Reproduce the client.connect call and determine whether the tcp entry is required; done means the connection no longer throws the reported undefined-or-null tcp error.