I realise this is an old question, but I came across it today needing to do the same thing and wrote a script to do it. You can check it out at my github repo.
The following code would accomplish what you're after (using jQuery):
$.ajax("http://my.domain.com/mycsvfile.csv", {
success: function(data) {
var jsonobject = csvjson.csv2json(data);
// Now use jsonobject to do some charting...
},
error: function() {
// Show some error message, couldn't get the CSV file
}
});
Happy coding :)
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