old_contents: from tornado.web import RequestHandler
  import bugsnag
  
  class BugsnagRequestHandler(RequestHandler):
      def _handle_request_exception(self, e):
          # Set the request info
          bugsnag.configure_request(
              user_id = self.request.remote_ip,
              context = "%s %s" % (self.request.method, self.request.uri.split('?')[0]),
              request_data = {
                  "url": self.request.full_url(),
                  "method": self.request.method,
                  "arguments": self.request.arguments,
                  "cookies": self.cookies,
              },
          )
  
          # Notify bugsnag
          bugsnag.notify(e)
  
          # Call the parent handler
          RequestHandler._handle_request_exception(self, e)
new_contents: from tornado.web import RequestHandler
  import bugsnag
  
  class BugsnagRequestHandler(RequestHandler):
      def _handle_request_exception(self, e):
          # Set the request info
          bugsnag.configure_request(
              user_id = self.request.remote_ip,
              context = "%s %s" % (self.request.method, self.request.uri.split('?')[0]),
              request_data = {
                  "url": self.request.full_url(),
                  "method": self.request.method,
                  "arguments": self.request.arguments,
              },
          )
  
          # Notify bugsnag
          bugsnag.notify(e)
  
          # Call the parent handler
          RequestHandler._handle_request_exception(self, e)
subject: Remove cookie support from tornado until it works in all situations