name : skip-link-focus-fix.js /** * File skip-link-focus-fix.js. * * Helps with accessibility for keyboard only users. * * This is the source file for what is minified in the twentytwenty_skip_link_focus_fix() PHP function. * * Learn more: https://git.io/vWdr2 * * @since Twenty Twenty 1.0 */ ( function() { var isIe = /(trident|msie)/i.test( navigator.userAgent ); if ( isIe && document.getElementById && window.addEventListener ) { window.addEventListener( 'hashchange', function() { var id = location.hash.substring( 1 ), element; if ( ! ( /^[A-z0-9_-]+$/.test( id ) ) ) { return; } element = document.getElementById( id ); if ( element ) { if ( ! ( /^(?:a|select|input|button|textarea)$/i.test( element.tagName ) ) ) { element.tabIndex = -1; } element.focus(); } }, false ); } }() );