While using the request's "isSecure" flag is a reasonable default, when webapps sit behind firewalls, sometimes the firewall does the SSL, and the traffic between the firewall and the app is plain HTTP (not HTTPS). In this case the "isSecure" flag on the request is always false, but we still want th XSRF-TOKEN cookie to be secure (the firewall forwards all cookies to the app, and the browser sends the secure cookie to the firewall).
It would be nice if we could configure the desired value for the secure flag of the cookie, just like we can configure the value for the httpOnly flag of the cookie.