csv is just a file in a gist

xxxxxxxxxx
 
<!DOCTYPE html>
<html>
 <head>
    <title>Simple Template Example</title>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/d3@2.10.3/d3.v2.js"></script>
 </head>
 <body>
​
    <svg id="svg"></svg>
​
    <script type="text/javascript" src="barchart.js"></script>
 </body>
</html>
    

Modified http://mbostock.github.com/d3/d3.v2.js to a secure url

https://mbostock.github.com/d3/d3.v2.js