UPDATE: the issue was my permissions on my revive-adserver folder. I was installing them with 644 permissions rather than 700 into `/var/www/html`. By changing back permissions to 700 the redirect stopped. Hopefully this helps someone in the future.
@Matteo do you happen to understand why the improper permissions might have caused this redirect, or which code is likely the source of the redirect? I'd love to submit a PR that causes Revive to fail loudly in the event that permissions are improperly set on its source files. That would have made this redirect issue much easier to debug.