JSFiddle - React, Tailwind, and code Playground
by Vladimir
JavaScript
var l = location.href;
var urlSum = l.test(/opera/gi) || l.test(/chrome/gi) || l.test(/explorer/gi) || l.test(/firefox/gi);
alert('urlSum:'+urlSum);
//if(navigator.userAgent.indexOf('sputnik')!=-1 && !urlSum && ($.browser.msie || $.browser.mozilla))