MediaWiki:Common.js

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mw.loader.using(['mediawiki.util']).done(function() {
    if (mw.config.get('wgIsMainPage') === true) {
        document.getElementById('skin-citizen-search-trigger').addEventListener('click', function() {
            var event = new Event('input',{
                bubbles: true,
                composed: true
            })
              , checkbox = document.getElementById('citizen-search__checkbox');
            checkbox.checked = true;
            checkbox.dispatchEvent(event);
        });
    }
});