JSFiddle - React, Tailwind, and code Playground

by Kyle Vassella

HTML

<body>
	<div>
		Hello World.
	</div>
<script>
//TEST IN MOBILE FOR FALSE POSITIVES
//Sources: https://stackoverflow.com/a/26358856/6647188, 

alert("hello world!");

    function testBrowser() { 
	     if(navigator.userAgent.indexOf("Opera") != -1 || navigator.userAgent.indexOf('OPR') != -1 ) {
	        //if Opera
	        function testOpera() {
	        	var Opera = (navigator.userAgent.match(/Opera|OPR\//) ? true : false);
	        	if (Opera) {
	        		alert ("The Opera browser is not compatible with some features of our site such as Zoom Video Conferencing. Please consider switching browsers.")
	        	}
	        }
	        testOpera();
	    }
	    else if(navigator.userAgent.indexOf("Chrome") != -1 ) {
	        //if Chrome 49 or below
	        function testChrome() {
	        	var match = window.navigator.userAgent.match(/Chrome\/([0-9]+)\./);
	        	var ver = match ? parseInt(match[1]) : 0;
	        	// var is_chrome = userAgent.indexOf('chrome') > -1 && userAgent.indexOf('Safari/') == -1;
	        	if (ver !== 0 && ver < 49) {
	        		alert("You have Chrome version " + ver + ". Please consider updating Chrome to the latest version for best site functionality.");

	        	}
	        }
	        testChrome();
	    }
	    else if(navigator.userAgent.indexOf("Safari") != -1) {
	        //if Safari 9 or below
	        function testSafari(){
	        	var objappVersion = navigator.appVersion;
	        	var objAgent = navigator.userAgent;
	        	var objbrowserName = navigator.appName;
	        	var objfullVersion = '' + parseFloat(navigator.appVersion);
	        	var objBrMajorVersion = parseInt(navigator.appVersion, 10);
	        	var objOffsetName, objOffsetVersion, ix; 

	        	// In Safari 
	        	if ((objOffsetVersion=objAgent.indexOf("Safari"))!=-1) {
	        		objbrowserName = "Safari"; objfullVersion = objAgent.substring(objOffsetVersion+7); 
	        		if ((objOffsetVersion=objAgent.indexOf("Version"))!=-1) objfullVersion =...