add_header Content-Security-Policy "frame-ancestors 'self' chat.franzi.business chat.sophies-kitchen.eu";

    location /.well-known/matrix/client {
        return 200 '{"m.homeserver": {"base_url": "https://matrix.franzi.business"},"m.identity_server": {"base_url": "https://matrix.org"},"im.vector.riot.jitsi": {"preferredDomain": "meet.ffmuc.net"}}';
        default_type application/json;
        add_header Access-Control-Allow-Origin *;
    }

    location /.well-known/matrix/server {
        return 200 '{"m.server": "matrix.franzi.business:443"}';
        default_type application/json;
        add_header Access-Control-Allow-Origin *;
    }