title: ajax on radio button click
body: <p>//on below code output  occured is  Undefined index: policy , how can i get the value of variable policy on controller </p>
  
  <p>//product_view.php</p>
  
  <pre><code>    $(".product").on('change', function(){ 
      var policy= "gggggggggggg";
      var base_url = window.location.origin;
  //alert(policy);
    $.ajax( {
    type: "POST",
    url: base_url+"/sales/index.php/Add_AMC/Insurance_chg",
    data: policy,
    success: function( response ) {
      alert(response);
    }
  });
  });
  
  //Add_amc.php controller
  //function Insurance_chg(){
          $product=$_POST['policy'];
          echo $product;die();
      }
  </code></pre>