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// gerrit:1079635
mw.loader.using( 'mediawiki.router' ).then(( req ) => {
const router = req( 'mediawiki.router' );
router.addRoute( /^mediaviewer\/(.+)$/, () => {
mw.track( 'counter.MediaWiki.mmv.legacyRoute', 1 );
} );
} );