Browsers really should have embraced XSLT rather that abandoned it. Now we're stuck trying yet again to reinvent solutions already handled by REST [1].

[1] https://tonysull.co/articles/mcp-is-the-wrong-answer/

RSS.style is my site. I'm currently testing a JavaScript-based workaround that should look just like the current XSLT version. It will not require the XSLT polyfill (which sort-of works, but seems fragile).

One bonus is that it will be easier to customize for people that know JavaScript but don't know XSLT (which is a lot of people, including me).

You'll still need to add a line to the feed source code.