Hello!
We have installed the current version 1.28 from MediaWiki.
Unfortunately the previously used local links (file://///server/ordner/...) can’t be open anymore.
Previously used version from MediaWiki: 1.13.
After the add of links from „$wgUrlProtocols[] = "file://";“ in the LocalSettings.php shows now the links as link.
But when you click on the link, nothing happens.
Source of the information: https://www.mediawiki.org/wiki/Manual:$wgUrlProtocols
The browser (IE, Edge, FF) are customized to open local files.
Thanks. :)