"SCRIPT5009: 'handleResponse' is undefined" in Internet Explorer

Question

Does anyone know why this isn't working in IE?

My code follows:

var xmlDocument = encodeURI('https://api.dc1.exacttarget.com/integrate.aspx?qf=xml&xml=<?xml version="1.0" ?><exacttarget><authorization><username>EXCATTARGET-USER</username><password>EXCATTARGET-PASS</password></authorization><system><system_name>subscriber</system_name><action>add</action><search_type>listid</search_type><search_value>17571300</search_value><search_value2></search_value2><values><Email__Address>[email protected]</Email__Address><status>active</status><Full__Name></Full__Name><ChannelMemberID></ChannelMemberID></values><update>true</update></system></exacttarget>');

$('.triggerAjax').click(function() {

    $.ajax({
          type: 'POST',
          url: xmlDocument,
          dataType: 'jsonp'
        });
});

Answer 1

var xmlDocument = encodeURI('https://api.dc1.exacttarget.com/integrate.aspx?qf=xml&xml=<?xml version="1.0" ?><exacttarget><authorization><username>EXCATTARGET-USER</username><password>EXCATTARGET-PASS</password></authorization><system><system_name>subscriber</system_name><action>add</action><search_type>listid</search_type><search_value>17571300</search_value><search_value2></search_value2><values><Email__Address>[email protected]</Email__Address><status>active</status><Full__Name></Full__Name><ChannelMemberID></ChannelMemberID></values><update>true</update></system></exacttarget>');

$('.triggerAjax').click(function() {

    $.ajax({
          type: 'POST',
          url: xmlDocument,
          dataType: 'jsonp'
        });
});