def do_GET(req, res)
      res.status, res.content_type, res.body = @delegator.run(req.meta_vars)
    end
def do_GET(req, res)
      res.status, res.content_type, res.body = @delegator.run(req.meta_vars)
    end
Creates a FerretBrowserHandler, which answers for the application
 within +klass+.
 Handler for WEBrick requests (also aliased as do_POST).