Cloudflare fetched the original article and streamed it through HTMLRewriter to apply an entirely new visual system without rebuilding the source page.
local p = {} function p.main(frame) local html = frame:preprocess(frame.args[1] or "") for _, class in ipairs{"speedy", "delete", "protection", "move", "content", "style", "notice",} do if html:find("mbox-"..class, 1, true) then return class end end return "content" end return p