getScript example

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>getScript example</title>
</head>
<body>
    <div id="panel"></div>
    
    <script src="https://code.jquery.com/jquery-2.2.3.min.js"></script>
    <script src="orderLines.js"></script>
</body>
</html>
    

Modified http://code.jquery.com/jquery-2.2.3.min.js to a secure url

https://code.jquery.com/jquery-2.2.3.min.js