User:Enprixd821/global.js

(function {    if(!$('#ca-skins').exists) {        var url = new mw.Uri(window.location.href),            xl = Boolean(url.query.oasisbreakpoints);        if(xl) {            delete url.query.oasisbreakpoints;            delete url.query.oasistypography;        } else {            url.query.oasisbreakpoints = '0';            url.query.oasistypography = '0';            }        $('', { 'class': 'wds-button wds-is-squished wds-is-secondary', href: url.toString, text: xl ? 'XL' : 'Fluid', }).appendTo('.page-header__contribution-buttons');   } });