d3.challenge1.2017Apr09

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<!DOCTYPE html>
<html>
 <head>
   <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
   <title>My project</title>
   <script type="text/javascript" src="https://d3js.org/d3.v2.min.js"></script>
   <link href="style.css" rel="stylesheet">
 </head>
 <body>
   <div id="chart">
   </div>
   <script type="text/javascript" src="script.js"></script>
 </body>
</html>
    

Modified http://d3js.org/d3.v2.min.js to a secure url

https://d3js.org/d3.v2.min.js