Execute UPNP on Web Browser using Jquery/Javascript

I want to search and add gateways in my local network using UPNP protocol such that when a user log in the web application, a UPNP service is run on page load and he gets a list of all the available gateways through that.

For this I'm looking a library to implement the same on client side.

My questions are: 1. Is it safe to perform this search on client side? 2. I found a library: http://ift.tt/1dTC1hp, this library is for node.js, how to implement it on client?