doesn't set HOST header in node

[coolaj86]

Works (correct vhost retrieved):

curl http://109.169.56.223 -H 'Host: foobar300.com'

Fails to set host:

(function () {
  "use strict";
  var request = require('ahr2')
    ;

  request({
      "host": '109.169.56.223'
    , "headers": {
          "Host": "foobar3000.com"
      }
  }).when(function (err, ahr2, data) {
    console.log(data.toString());
  });
}());

@Gissues:{"order":40,"status":"backlog"}