Source code for https://victorfont.com/jquery-ajax-microsoft-browsers/

confirmation_req.js

var confirmation_req = $.ajax({
    type: 'GET',
    url: '//path-to-remote-server',
    dataType: "text",
    contentType: "text/xml",
    data: { FormXml: strXml },
    dataFilter: function (data, type) {
        var start = data.search('">') + 2, strlen = data.search('</long>') - start;
        return data.substr(start, strlen);
    }
});

final_ajax.js

var confirmation_req = $.ajax({
    type: 'POST',
    crossDomain: true,
    url: '//path-to-remote-server',
    dataType: "text",
    data: { FormXml: strXml },
    dataFilter: function (data, type) {
        var start = data.search('">') + 2, strlen = data.search('') - start;
        return data.substr(start, strlen);
    }
}).fail(function (jqXHR) {
    write_to_log("Ajax submission failed");
    write_to_log("Content sent to server: " + strXml);
    write_to_log("Status: " + jqXHR.status + '\r\n' + "Status code: " + "Status message: " + jqXHR.statusText);
    alert("There was an error retrieving the confirmation number from the server. Please try submitting your form again later.");
}).done(function (data) {
    if ($.isEmptyObject(data) || data === "0") {
        write_to_log("Empty confirmation number in done function");
        write_to_log("Content sent to server: " + strXml);
        alert("There was an error retrieving the confirmation number from the server. Please try submitting your form again later.");
    } else {
        write_to_log("Success! We're done");
        set_form_fields(data);
        display_confirmation();
    }
}).always(function () {
    write_to_log("Submitting form");
    $("#my_form").submit();
});

htmlDecode.js

function htmlDecode(value){
    return $('
').html(value).text();
}

htmlEncode.js

function htmlEncode(value){
    return $('
').text(value).html();
}