MediaWiki:External image whitelist

#Leave this line exactly as it is

#Put regular expression fragments (just the part that goes between the //) below
#These will be matched with the URLs of external (hotlinked) images
#Those that match will be displayed as images, otherwise only a link to the image will be shown
#Lines beginning with # are treated as comments
#This is case-insensitive

#Put all regex fragments above this line. Leave this line exactly as it is

1. Used on Manual:$wgAllowExternalImages to show an example, so it'd be nice if said example worked

^https?://en\.wikipedia\.org/upload/b/bc/Wiki\.png$