I have a very simple sinatra site that I'm trying to access via ajax through jQuery.

To keep things incredibly simple, this code snippet:

get '/behavior_count' do
  "60"
end

which returns "60" in the browser, shows up as an empty string when attempting to access the site via $.get in jQuery. The strange part is in Firebug, while the Response is empty, the HTTP header correctly describes Content-Length as 2, and I can see the request show up on the server.

Is there something specific to Sinatra that isn't returning my data, or am I not using jQuery correctly?

If it helps, I also tried this code:

get '/behavior_count' do
  content_type 'text/plain', :charset => 'utf-8'
  "60"
end

and my jQuery looks like

$.get('http://mysite:4567/behavior_count'); // Ignore the response, but
                                            // watch the request in firebug

Any ideas?