Board Thread:Technical Updates/@comment-24006128-20200319160218/@comment-37336800-20200320194447

Bug: The UCP VisualEditor doesn't support the  url parameter (where   is a number, for example  ). It does support  (with nothing inside the brackets). This prevents the use of mw:Extension:Inputbox's preloadparams[] parameters.

does work on MediaWiki however. You can test the difference in behavior using the inputbox at the bottom of mw:User:Wychmire (mediawiki) and w:c:wreckit-woodhouse:User:Himmalerin (UCP Fandom wiki). You may need a mediawiki account to gain access to the VisualEditor on MediaWiki.

edit: In both cases the words "News and Announcements" should appear in the editor, but with the UCP editor instead you get the variable " "