That makes sense until you remember what "rendering" is supposed to mean. Forming the HTML has no reason to be client side when you're using the site-provided

That makes sense until you remember what "rendering" is supposed to mean. Forming the HTML has no reason to be client side when you're using the site-provided experience. Yes provide a json version for other clients, but for direct viewing just send the paragraph of text in a usable form and let the javascript be an optional upgrade.