A Front End Does Not Have to Be Rich

There was a back-end, which generated some HTML and implemented your business logic, and a front-end which styled and presented that to the user, with information being transferred back to the server through forms, often progressively enhanced using some JavaScript for AJAX communication. Another benefit to using rich client-side frameworks is that they can seem deceptively simple to the developer experience – only having to write code for the client and not the server – but this simplicity can often hide other issues. One reason that I have seen front-ends of web applications end up being rich is that the back-end code is handled by another team or developer.

Source: www.apress.com