but why priviligize XML? there's WASM and sites can have any kinds of codecs they want.
unfortunately(?) modern browsers are turning more into these sandbox and state managers with a few lower-level rendering engines bolted together (JS driving the DOM, plus CSS and SVG and audio and video and font and various image codecs and ...)
and if people want to copy the raw data URL the site can show them, plus HTTP provides the Accept and other headers for content negotiation so in theory the URL can be the same.
unfortunately(?) modern browsers are turning more into these sandbox and state managers with a few lower-level rendering engines bolted together (JS driving the DOM, plus CSS and SVG and audio and video and font and various image codecs and ...)
and if people want to copy the raw data URL the site can show them, plus HTTP provides the Accept and other headers for content negotiation so in theory the URL can be the same.