使用ajax和python发送文件后从外部URL获取数据

Question

<form  id="myForm" method="post" name="myForm">         NDA DOC: <input type="file" name="file1">
         <input type="submit"  id="submit">
      </form>

thats the js

   $('#myForm').submit(function(e){
                          e.preventDefault();
        let data = $( this ).serialize()
        $.ajax({
            type: "POST",
            url: "http://www.example.com/uploader",
            data: data,
            success: function(response){
              // success action here
                console.log(response);
            },
            error: function(response) {
              // error action here
                console.log(response);
            }
        });

this code in wordpress site i'm getting this error (index):1 Access to XMLHttpRequest at 'http://www.example.com/uploader' from origin 'http://localhost:8080' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.