How do I do content encoding properly in node.js?

Given the following code

var http = require('http');http.createServer(function (request, response) {    response.writeHead(200, {'Content-Type': 'text'});    response.write("Okay – so recently I’ve started presenting a session to various groups involving the well known IOC container “StructureMap”", 'utf8');    response.end();}).listen(8080);

I get the output

Okay – so recently I’ve started presenting a session to various groups involving the well known IOC container“StructureMapâ€â€“ and despite being pretty clear about the contents of said talk I’m getting quite a bit of backlash for demonstrating anything that even remotely resembles service location.

This is clearly wrong - but is it wrong because I've got the wrong encoding (UTF8 should do it... right?... right?) or is it wrong because node is doing something weird?

I am using the latest version of node, cloned from github master yesterday.