https://github.com/search?q=repo%3Amastodon%2Fmastodon%20config.hosts&type=code
seems mastodon adds alternate_domains to the exception lists
which doesn't actually make any sense, because this is about the *ip that connects to the server* not the one the server is accessed as
but now you can search FediFox Shield rendered/proxied profiles and statuses properly again https://glitch-dev.pixie.town/@alice
turns out it was sort of my fault, reverse proxy not setting the original Host header, so FediFox proxied it to Mastodon with the FediFox shield listen ip as the Host