After selecting second checkbox, not appending to url along with first checkbox name

    $(document).ready(function () {
      $('input[type=checkbox]').click(function (e) {
      var seasoning = '', tempArray = [];
      $('input[name="Brand[]"]:checked').each(function(){
          tempArray.push($(this).val());
      })
      if(tempArray.length !== 0){
         seasoning+='&Brand='+tempArray.toString();
         tempArray = [];
      }

      $('input[name="Origin[]"]:checked').each(function(){
          tempArray.push($(this).val());
      })
      if(tempArray.length !== 0){
         seasoning+='&Origin='+tempArray.toString();
      }


     window.location = "/example.com" + seasoning;

      });

    });

When I run above code, it appends brand name to url. when I select origin, the brand name disappears and origin name appends. I want brand name to still be there.

This does not happen in a clean test:

HTML

<script
              src="https://code.jquery.com/jquery-3.7.1.min.js"
              integrity="sha256-/JqT3SQfawRcv/BIHPThkBvs0OEvtFFmqPF/lYI/Cxo="
              crossorigin="anonymous"></script>
<input type="checkbox" name="Brand[]" value="A">
<input type="checkbox" name="Brand[]" value="B">
<input type="checkbox" name="Brand[]" value="C">
<input type="checkbox" name="Brand[]" value="D">
<input type="checkbox" name="Origin[]" value="E">
<input type="checkbox" name="Origin[]" value="F">
<input type="checkbox" name="Origin[]" value="G">
<input type="checkbox" name="Origin[]" value="H">

JS

$(document).ready(function () {
      $('input[type=checkbox]').click(function (e) {
      var seasoning = '', tempArray = [];
      $('input[name="Brand[]"]:checked').each(function(){
          tempArray.push($(this).val());
      })
      if(tempArray.length !== 0){
         seasoning+='&Brand='+tempArray.toString();
         tempArray = [];
      }

      $('input[name="Origin[]"]:checked').each(function(){
          tempArray.push($(this).val());
      })
      if(tempArray.length !== 0){
         seasoning+='&Origin='+tempArray.toString();
      }


     //window.location = "/example.com" + seasoning;
     console.log("/example.com" + seasoning);

      });

    });

Fiddle: https://jsfiddle.net/jzcdLg9x/

It results in URLs containing both the brand and the origin, like

"/example.com&Brand=B,C&Origin=G,H"

Screenshot taken from the fiddle illustrating what I described above:

So your issue must come from something else, some other Javascript code that you have that does some computing and redirecting to the wrong place, of a cached JS file.