Activity showing Idle - but it's not

Submitted diagnostics: aba79d3b-fbf4-44f5-9425-267ad9712c68

Issue: Activity is Idle in the web UI.

I'm guessing this is related to accessing the UI via reverse proxy. Seems to work just fine with a direct connection.

Browser does show "subscribe" endpoint as "pending" endlessly.

Here's my reverse proxy config:

  listen        443 ssl;
  server_name   <reverse_url>;

  ssl_certificate       /config/keys/fullchain.pem;
  ssl_certificate_key   /config/keys/privkey.pem;

  client_max_body_size 0; 
    location / {
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        proxy_pass http://<localname>:8089;

    ssl_stapling on;
    ssl_stapling_verify on;
    add_header Strict-Transport-Security "max-age=31536000; includeSubdomains";


Any thoughts / guidance?

lol, I take it back, looks like it's working, just took 4.6 min to return!

To close the loop on this, the following stanza makes the subscribe endpoint return in 44ms, versus 4.5 minutes!!

   proxy_buffering off;