HTML comments ruined my api

Thank you for this great plugin! @tillkruess but…

I’m running an API server that will serve JSON codes to my users, with your plugin adding message:

<!-- Performance optimized by Redis Object Cache. Learn more: https://wprediscache.com -->

to every page of site, my JSON output also with this message, this cause my users keep getting errors by decoding the JSON, this is NOT cool.

Please consider give an option in back-end or remove this in the future. Thank you!