Some content is already loaded asynchronously such as images, content below the fold etc.
> HTML is really just a markup syntax, not a programming language
flamebait detected :) It's a declarative language, interpreted by each browser engine separately.
> considered to be server-side
Good point! Wouldn't fetching a template partial happen the same way (like fetching an image?)
<html src="/some/page.html">, <div src="/some/div.html">, <span src="/some/span.html">, etc.
Or create a new tag that's a noun like fragment, page, document, subdoc or something.
Surely that's no less markup than svg, img, script, video, iframe, and what not.
I always assumed it stood for my initials.
Nor is this something unique to SGML. XML is also a "markup language", yet XInclude is a thing.
touchay!!