Some images http:, not https:

I had an issue showing some images http and not secure on my site. I fixed all except 3 which I tracked down to this slider viewing page source.

Where can I find this file to edit the few http: instances to https:? OR, is there another easy way to fix this? There are a dozen or more images that ARE https:, just a few like this that are not.

Thanks!

<script type='text/javascript' src='https://www.in4m8n.com/WPress/wp-content/plugins/slider-wd/js/jquery.mobile.js?ver=1.2.44'></script>
<script type='text/javascript'>
/* <![CDATA[ */
var wds_object = {"is_free":"1","pause":"Pause","play":"Play"};
/* ]]> */
</script>
<script type='text/javascript'>
    var wds_glb_margin_0 = parseInt(0);
    var wds_data_0 = [];
    var wds_event_stack_0 = [];
    var wds_clear_layers_effects_in_0 = [];
    var wds_clear_layers_effects_out_0 = [];
    var wds_clear_layers_effects_out_before_change_0 = [];
          var wds_duration_for_change_0 = 0;
      var wds_duration_for_clear_effects_0 = 0;
          wds_clear_layers_effects_in_0["0"] = [];
      wds_clear_layers_effects_out_0["0"] = [];
      wds_clear_layers_effects_out_before_change_0["0"] = [];
      wds_data_0["0"] = [];
      wds_data_0["0"]["id"] = "4";
      wds_data_0["0"]["image_url"] = "https://www.in4m8n.com/WPress/wp-content/uploads/2015/08/Slider-2.jpg";
      wds_data_0["0"]["thumb_url"] = "https://www.in4m8n.com/WPress/wp-content/uploads/2015/08/Slider-2-160x107.jpg";
      wds_data_0["0"]["is_video"] = "image";
      wds_data_0["0"]["slide_layers_count"] = 0;
      wds_data_0["0"]["target_attr_slide"] = "1";
      wds_data_0["0"]["link"] = "";
      wds_data_0["0"]["bull_position"] = "bottom";

      
      wds_data_0["5"]["image_url"] = "<strong>http</strong>://www.in4m8n.com/WPress/wp-content/uploads/2018/07/Sedona-2018-1-e1582512401965.jpg";
      wds_data_0["5"]["thumb_url"] = "<strong>http</strong>://www.in4m8n.com/WPress/wp-content/uploads/2018/07/Sedona-2018-1-e1582512401965.jpg";
      wds_data_0["5"]["is_video"] = "image";
      wds_data_0["5"]["slide_layers_count"] = 0;
      wds_data_0["5"]["target_attr_slide"] = "1";
      wds_data_0["5"]["link"] = "";
      wds_data_0["5"]["bull_position"] = "bottom";