通过Ajax调用发送XML

I have a CentOS 7 server hosting an internal webpage. On my webpage I have a button #test1 once clicked the test.js should execute. test.js should make an ajax call to send some XML to my Cisco phone for it to be executed.

I can run a CURL from my server and it works.

curl -H "Content-Type: text/xml" -d @test1.xml -X POST http://username:password@10.0.0.130/CGI/Execute

Where text1.xml contains

XML=<CiscoIPPhoneExecute><ExecuteItem URL="Dial:12345678,,,,,6020197#,,,,,,,,,,,,,,,,,#"/></CiscoIPPhoneExecute>

Why when I try to run it as a script doesn't it work? I am seeing the following errors.

Uncaught ReferenceError: $ is not defined

document root

/var/www/mysite.com/public_html

css index.html js

HTML - index.html

<html>
<head>
    <meta content="text/html; charset=utf-8" http-equiv="content-type">
    <meta content="noindex, nofollow" name="googlebot">
    <script src="./js/jquery-git.js" type="text/javascript"></script>
    <script src='./js/test.js'></script>
    <link rel="stylesheet" type="text/css" href="./css/style.css">
    <title>Auto Bridge Opener</title>
</head>
<body>
     <button name="Log" type="submit" id="test1">Primary Bridge</button></form>

CSS - style.css

JS - test.js

$(document).ready(function() {
  $('#test1').on('click', function(e) {
    e.preventDefault();
    var btn = $(e.target);
        btn.attr("disabled", "disabled"); // disable button
        $.ajax({
    type: "POST",
    url: "http://username:password@10.0.0.130/CGI/Execute",
    dataType: "xml",
    contentType: "application/xml",
    data: "<CiscoIPPhoneExecute><ExecuteItem URL='Dial:12345678,,,,,6020197#,,,,,,,,,,,,,,,,,#'/></CiscoIPPhoneExecute>",
    success: function (res) {
        alert("XML: it works!");
    },
    error: function (res) {
        alert("XML: not working! " + res.statusText);
    }
        });
  });
});

There maybe some issue with you code: 1 For the $ is not defined,you should make sure the <script src="./js/jquery-git.js" type="text/javascript"></script> not got a 404,and the jquery-git.js is a correct jQuery library. 2 The ajax do not support cross-domain, so you phone and server should has the same domain.