What is (Normal) Server Side Rendering?Before we get into extreme server side rendering (XSSR), we have to talk about normal server side rendering (SSR). This comes in two flavours, which I'm calling old-school and new-school.Old-school SSR involves having a server which uses some logic to create the HTML of the web page on-the-fly. For example, you might hit /users/39, and it might give you the details of user 39. These details might be from a database, or they might come from somewhere else. T...