// source http://jsbin.com/mideh/1

xxxxxxxxxx
 
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JS Bin</title>
    <script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
</head>
<body>
  <script>
  //enter d3 code here
  d3.select("body")
    .append("h1")
    .text("hello patrick");
  </script>
​
​
</body>
</html>
    

Modified http://d3js.org/d3.v3.min.js to a secure url

https://d3js.org/d3.v3.min.js