JSFiddle - React, Tailwind, and code Playground

HTML

<from action='http://www.google.com.tw' method='get' target='win'>
    <input type="submit" name='submit' value="Submit" id="b" />
</from>
<br />
<iframe id='win' name='win'></iframe>

JavaScript

//document.onclick=function() { return true; };
//document.getElementById("b").onclick = function() { return false; };