Use of ionic as desktop web application

Question

Ionic is a great framework to develop mobile apps using html5. We want same application to be used over desktop browser also. Will it be good idea to make a single responsive UI

Answer 1

My comment became too large. This is to elaborate and add to Jeremy Wilken's excellent answer.

It is not only limiting the browsers on a desktop, but showing the mobile-screen on part of the screen real estate looks downright ridiculous (time to rethink what mobile first means :)). The need for proper API cannot be stressed more because the flow (navigation) will most probably vary across more screens in a mobile format than in the PC format though functionality may be the same.

I agree with Jeremy's observation that Business logic should be kept separate and exposed as fine grained REST APIS e.g use a Express.js framework based server with MySQL/MongoDB/Redis or any other commercial data store. So, the REST API can be used across Mobile/Phablet/Mini Tablet UI (with Ionic) and Desktop/Laptop UIs (with Bootstrap + AngularJS.). Of course I am a fan of JS, OP can use any language of choice for the server.