MediaWiki:Common.js

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/* Any JavaScript here will be loaded for all users on every page load. */
$(function() {
    if ( mw.config.get( 'skin' ) === 'vector-2022' && mw.config.get( 'wgUserName' ) === null ) {
        var pinButton = document.querySelector( '[data-event-name="pinnable-header.vector-main-menu.pin"]' );
        if ( pinButton ) {
            pinButton.click();
        }
    }
});