SSE/EventSource Not Working with Cluster Size > 1

[jcq]

Using this code:

var url = apiBase + '/imports/change-stream?_format=event-stream';

console.log('Creating new EventSource', url);

var es = new EventSource(url);

es.addEventListener('data', (msg) => {

var changeObj = JSON.parse(msg.data);

console.log(changeObj);

});

If I set cluster size to 1,

slc ctl set-size SVC 1

everything works just fine. I get data output every time.

However, if I set cluster size to 2,

slc ctl set-size SVC 2

I don't receive any of the data packets.

Is there some setting I'm perhaps missing? I did remove compression from middleware.json, and I had to add these to my nginx config to make it send anything:

proxy_set_header Connection '';

proxy_http_version 1.1;

chunked_transfer_encoding off;

proxy_buffering off;

proxy_cache off;

However, my remaining issue seems to be isolated to the cluster support of Loopback. Both locally and on a remote server, I get data when size=1, but nothing from size=2.

Has anyone else encountered this issue and found some sort of solution?