Out of curiosity, which browsers do support native postscript rendering?

Konqueror supports it in the sense that it will embed the appropriate KPart, just as it would for e.g. PDF. How "native" you consider that is an open question.

Thanks. By native I meant it renders without plugins or any configuration by the user, on a default install of the browser.

The line between plugin and not is pretty blurry for Konqueror - even its HTML renderer is a plugin in a sense.

Renders fine in Safari. I assume it uses pdf.js or something in the same vein though, the page scrolling is very slow.

My Firefox does not.

Thanks, we've updated the link.