Unable to detect any parameter in html (webresource) when value is passed from onload method of form

Unable to detect any parameter in html (webresource) when value is passed from onload method of form
I am trying out some stuff. For which I created a simple Entity. In the form of the entity I have added a simple web resource (html). And for the onload of the form I am calling the following function
function HelpDeskActivityOnLoadhandler()
 var customParameters = encodeURIComponent("first=First Value&second=Second Value&third=Third Value");
    Xrm.Utility.openWebResource("tsi_scriptzz",customParameters);
Here is the code for the  tsi_scriptzz.html
<html>
 <body>
  <script type="text/javascript">
    var vals = new Array();
    if (location.search != "") {
     vals = location.search.substr(1).split("&");
     for (var i in vals) {
      vals[i] = vals[i].replace(/\+/g, " ").split("=");
  </script>
 </body>
</html>
MY PROBLEM IS -> location.search is always coming back with empty string. So, it not getting the parametrs I am passing from the load method of the form.
Could someone kindly help me.
Thanks,
Hasib

Hello, I tried it myself. I got a new_test.htm file and a new_test.js file. The loadWebResource function is called on the OnLoad event of an Entity.
function loadWebResource()
var params = encodeURIComponent('param1=value one&param2=value two&param3=value three');
Xrm.Utility.openWebResource('new_test.htm', params);
<html>
<head>
<title>Web Resource Parameter Example</title>
<!-- Use ../ClientGlobalContext.js.aspx if your webresource is in a deeper folder on CRM -->
<script src="ClientGlobalContext.js.aspx" type="text/javascript"></script>
<script type="text/javascript">
document.onreadystatechange = function () {
if (document.readyState == 'complete') {
var params = getParams();
for(var i=0; i<params.length; i++)
log(params[i].name + ' ' + params[i].value);
// this functions puts the params in a 'dictionary format'
// f.e params[0].name = param1 & params[0].value = 'value one'
// You could customize this function or find some on the internet to retrieve a param fe by name...
// This is just an example how to get the name and values
function getParams(){
var params = [];
var querystring = Xrm.Page.context.getQueryStringParameters().Data;
var querystringparts = querystring.split('&');
for(var i=0; i<querystringparts.length;i++)
var split = querystringparts[i].split('=');
params.push({
name: split[0],
value: split[1]
</script>
</head>
<body>
</body>
</html>
Hope it helps now. Kind Regards

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