Serialize and get request

1.js

 $('.search-product a.btn-submit').click(function (e) {
    e.preventDefault();
    var data = $(this).closest('form').serialize();
    var url = $(this).attr('href');
    url = url + '?products-filters&' + data;
    window.open(url,"_self")
  })

  $('.section-product form').change(function () {
    var data = $(this).serialize();
    history.replaceState(null, null, window.location.protocol + "//" + window.location.host + window.location.pathname + '?products-filters&' + data);
  })

  $.fn.deserialize = function (serializedString) {
    var $form = $(this);
    $form[0].reset();
    serializedString = serializedString.replace(/\+/g, '%20'); // (B)
    var formFieldArray = serializedString.split("&");

    // Loop over all name-value pairs
    $.each(formFieldArray, function(i, pair){
      var nameValue = pair.split('=');
      var name = decodeURIComponent(nameValue[0]);
      var value = decodeURIComponent(nameValue[1]);
      // Find one or more fields
      var $field = $form.find('[name=' + name + ']');
      if ( ! $field.length ) {
        return;
      }
      // Checkboxes and Radio types need to be handled differently
      if ($field[0].type == 'radio' || $field[0].type == 'checkbox')
      {
        var $fieldWithValue = $field.filter('[value="' + value + '"]');
        var isFound = ($fieldWithValue.length > 0);
        // Special case if the value is not defined; value will be "on"
        if (!isFound && value == 'on') {
          $field.first().prop('checked', true);
        } else {
          $fieldWithValue.prop('checked', isFound);
        }
      } else if ($field.prop('tagName') =='SELECT')  { //select
        $field.find('option[value="' + value + '"]' ).attr('selected', 'selected');
      } else { // input, textarea
        $field.val(value);
    }
    });
    return this;
  }

  if (location.search.substr(1).indexOf('products-filters') == 0) {
    $('.section-product form').deserialize(location.search.substr(1));
  }