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.
Note these should never all be filled, e.g. never city & country, because City is entered as [[City]], [[Country]], only one or the other should be chosen among licence/license, etc., see Usage
Here is a side by side example of the current problem and a revised version I made in the sandbox regarding the "Current_status" parameter duplication error:
{{Infobox website
| name = [[File:Wikipedia's W.svg|16px|Favicon of Wikipedia]] English Wikipedia
| logo = [[File:Wikipedia-logo-en.png|English Wikipedia logo]]
| logocaption = Logo of the English Wikipedia
| screenshot = [[File:EnglishWikipediaMainPage3rdAugust2007.PNG|280px|The [[Main Page]] of the English Wikipedia.]]
| collapsible = yes
| caption = The [[Main Page]] of the English Wikipedia.
| url = http://en.wikipedia.org/
| commercial = No
| launch_date = 15 January 2001
| type = {{longitem|[[Internet encyclopedia project]]}}
| language = English
| registration = Optional
| owner = [[Wikimedia Foundation]]
| author = {{ublist |[[Jimmy Wales]] |[[Larry Sanger]]}}
| alexa = 7
| issn = 1600-0706
| oclc = 52075003
| current_status = Online
| footnotes = (footnotes)
}}