JSFiddle - React, Tailwind, and code Playground

by Oleg Khobotov

HTML

<script src="http://www.featureblend.com/flash_detect_1-0-4/flash_detect_min.js"></script>

JavaScript

if(!FlashDetect.installed){
    alert("Flash is required to enjoy this site.");         
}else{
    alert("Flash is insalled on your Web browser.");
}