Was having problems on a VPN where my URL was constantly redirecting to https, after https was disabled, spent ages reconfiguring nginx, removing and adding nginx again with no luck. Eventually said fuck it, backed up everything of importance, destroyed the droplet and spun up a new one. Installed nginx and redone the DNS for the domain only for the same thing to happen. It was at that moment I discovered it was chrome caching the HSTS domain. I now have a long night ahead of me configuring the new droplet and restoring the backup data.