Doing this should get rid of a scary (but harmless) looking browser console errors when the SSE connection is unexpectedly dropped e.g. by an intermediary proxy/gateway.
By doing this periodically from the client side (disconnecting and reconnecting), we avoid the user seeing this.
The error looks scary but is actually fine because the SSE EventSource auto-reconnects.
Something to consider though .... we might need to do some sort of "store and forward" at the gateway for when messages arrive during a reconnect. See