JSFiddle - React, Tailwind, and code Playground

HTML

<form id="form_710370" class="appnitro"  method="post" target="iframe1" action="convert.php">
						<p id="inputs">  
					       <span><input id="Website" type="url"name="url1" data-validation="url" ></span>
						  <input id="saveForm" class="button_text" type="submit" name="submit" value="View My Mobile Site" />
					    </p>
			   </form>	
    <div id="viewer">Shouldn't see this</div>

JavaScript

$(document).ready(function () { 
            $("#saveForm").click(function () {
               $.cookie('myCookie', $("#Website").val(), {
                   expires: 365,
                   path: '/'
               }); 
             }); 

             $("#Website").val("http://prepopulated/value");

         });


$(function () {
       $('#Website').on('keyup blur paste', function() {
           var self = this;
           setTimeout(function() {
               var str = $(self).val();
               $("#viewer").text(str.replace(/^http\:\/\//, ''));
           }, 0)
       })
    $("#viewer").text($('#Website').val().replace(/^http\:\/\//, ''));
});