javascript - Unexpected token < reading xml file

Question

I'm having a problem when i do an ajax call.

My code is :

$('#regLink').click(function(event){
  event.preventDefault();
  urlLink = $('#regLink').attr('name') + $('input[name="email"]').val();
  $.ajax({
    type: 'GET',
    dataType: 'jsonp',
    jsonpCallback: 'callback',
    url: urlLink,
    success: function (xml) {
      var code = $(xml).find('int').text();
      if(code == '1') {
        console.log('email gravado com sucesso');
      }
      else {
        console.log('algo correu mal');
      }
    }
  });
});

The call give this response :

<?xml version="1.0" encoding="utf-8"?> 
<int xmlns="http://tempuri.org/">1</int>

And it give me this error :

Uncaught SyntaxError: Unexpected token <

The URL points to another site, so its a cross domain call.

I just want to read the "1" and give a success alert.

Hope you can help me.

Thanks

Answer 1

Your JavaScript says to make an Ajax request using the JSONP pattern (which involves inserting a <script src="something"> element into the document instead of using XMLHttpRequest).

The response you are getting is an XML document, not a JavaScript program following the JSONP pattern, which would be something like:

value_of_query_string_callback_argument({ "int": 1 });

You get the error because the browser is trying to execute the XML as JavaScript (which it isn't).

Either change the response to be JSONP, or use some other method to make a cross-domain request.