d3 csv nest simple example

<html>
	<head>
		<title>D3 Simple Nest and CSV Example</title>
		<script src="https://d3js.org/d3.v2.js"></script>
    </head>
    
    <body>
    
    <script>
    
        var csv_data="group, date, time\none, 2012-01-01, 4\none, 2012-01-01,6\ntwo, 2012-01-06,3\nthree, 2012-01-01, 4\nthree, 20120-01-05, 3\n";
        
        var array_data = d3.csv.parse(csv_data);
        
        var nested_data = d3.nest()
            .key(function(d) { return d.group; })
            .entries(array_data);
            
        console.debug(nested_data);
        alert(JSON.stringify(nested_data));
        
        /* expect 
        [{"key":"one",
          "values":[{"group":"one"," date":" 2012-01-01"," time":" 4"},
                    {"group":"one"," date":" 2012-01-01"," time":"6"}]},
         {"key":"two",
          "values":[{"group":"two"," date":" 2012-01-06"," time":"3"}]},
         {"key":"three",
          "values":[{"group":"three"," date":" 2012-01-01"," time":" 4"},
                    {"group":"three"," date":" 20120-01-05"," time":" 3"}]}]
        */
            
    </script>
    
    </body>
</html>

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

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