Help troubleshooting hosted ActivityPub redirect issues with self-hosted Docker + Cloudflare setup

[curiositry]

Update: solved by switching off Cloudflare to Nginx reverse proxy (without the various funky subdomain tricks I had tried), and updating my nginx.conf to include auth header and cache settings:

ActivityPub: {“error”:“Forbidden”,“code”:“SITE_MISSING”}

@JDiller It would be hard to overstate how grateful I am for your post! I have spent a lot of time trying to get ActivityPub proxying working correctly with my slightly complex self-hosting setup. The backticks don’t work for me when using ap.ghost.org, and I left the location block as I had it, but adding the auth header (which I’d tried before, but at that point there must have been other issues) and the two cache settings finally did the trick. Thank you!!