Cloudflare fetched the original article and streamed it through HTMLRewriter to apply an entirely new visual system without rebuilding the source page.
// request.cf · coarse context
A page that knows where it met you.
Only coarse request metadata is shown. This demo does not display or persist visitor IP addresses.
{{infobox rocket engine|name=Zapp-o-tron
|type=neutrino flux
|description=Proves once and for all whether [[neutrino]]s have mass.
|specific_impulse=0. or else ∞. Probably.
|manufacturer=[[Yoyodyne]]|style=border: thin groove blue; background-color: #ffc;;
}}