These measures increase protection against CSRF ataks. The only reason
Rails provides them as a configuration option is there are complex
applications that run one version of the code in some servers while
running an old version of the code in other servers might run into
issues because the the old version won't handle the tokens or cookies
generated by the new version.
Since most Consul applications use just one server and the ones with
more servers would only face this issue for a few seconds (while
upgrading to a new version of Consul Democracy), we can safely enable
these configuration options.