It's not a thing of the past. The majority of websites still use this capable and pragmatic approach.
I haven't got any information to support it, but I suspect it was mostly cargo culting from big vendors with big platforms that has made JS Single Page App style sites seem ubiquitous, because everyone in the spotlight is talking about the cool stuff they are doing with it. But in reality they still make up a minority of the web.
I haven't got any information to support it, but I suspect it was mostly cargo culting from big vendors with big platforms that has made JS Single Page App style sites seem ubiquitous, because everyone in the spotlight is talking about the cool stuff they are doing with it. But in reality they still make up a minority of the web.