HTTP状态码0可能是跨站脚本？

Question

I have a $.ajax that run file in php and pass a variable (email andress). The file works very good but the xhr.status is 0.

This is the code:

    $.ajax({
            type: 'POST',
            url: 'file.php',
            data: { email: destinatario },  
            complete: function(xhr,status){ 
            $('#momentaneo, #force').remove();
            alert(xhr.status);
                if(xhr.status ===  200){
                    alert('ok');                        
                }
                else{
                    alert('no');                        
                }
            }               
        });

This file.php, independently xhr.status, works fine and it add a user to my newsletter. So i don't think that this file is the problem.. It has "0755" permission files and if i run the url of file.php with browser there aren't problems.

The problem is that xhr.status is 0 and i don't understand why... I read that could be "cross-site-scripting" but i don't know if is possibile in my case. I tried also to change tag form in div but nothing.

I add also the file.php:

<?php
 include('wrapper.php');
 $apikey = "76a21109637d7391d1e68e9680e6";
 voxmail_init($apikey);
 voxmail_user_subscribe(array('mail' => $_POST['email'],'privacy' => 1),$_SERVER['REMOTE_ADDR']);

 $header = "Content-type: text/html";
 header($header);
 print('<b>ok</b>');
?>

voxmail are API of newsletter service (i'm sure 101% that api are not problem)

i hope can you help me, thank a lot and sorry for my english

Answer 1

I think the problem is that you're checking xhr.status when status is being passed to you as the second parameter in your complete callback. Try this instead:

$.ajax({
  type: 'POST',
  url: 'file.php',
  data: { email: destinatario }
}).always(function(){
  $('#momentaneo, #force').remove();
}).then(function(){
  console.log.apply(console, arguments);
  alert('ok');
}, function(){
  console.warn.apply(console, arguments);
  alert('no');
});

The console statements are only there for debugging purposes and can be removed.