Hugo Giraudel, engineer at N26:
In the last few years, we have seen more and more ways to build highly interactive web applications relying almost exclusively on JavaScript. To the point where we almost wonder whether we forgot from where we come from. Not so long ago was a time was JavaScript was just sprinkled on top of web pages to have custom cursors and cool sound hover effects. But I digress.
That doesn’t mean they’ve totally barred JavaScript. On the contrary: the N26 platform is built using React. What they do instead is render the React tree on the server, and make sure that it works as a regular page would. Only if the JavaScript on the client kicks in does it become a Single Page Application.