Comment by Gualdrapo

(Chiming in because other people replying to you kept on the "iframe-like" part of the argument)

Or serializing `<template>`s without needing JS. Like in lists (`<ol>`, `<ul>`, `<dl>`...). All in all `<template>`s are a nice thing to have, and I do use them a lot (like in my own portfolio), but it feels really lacking without JS.