> Be sure that you understand the concept of HSTS! Simply copy/pasting the example from this article will completely break subdomains that are not HTTPS enabled

> Be sure that you understand the concept of HSTS! Simply copy/pasting the example from this article will completely break subdomains that are not HTTPS enabled and preloading will break it permanently +1. I'm kind of worried that the default copy-pasteable snippet there can lead to serious consequences. Well, less today when you can get certs for free, but you may have some unpleasent downtime.