BTW I don’t see any issue when I try to load your web page:
This is interesting… 
I have the issue with Chrome / Firefox and I removed all extensions in the browser.
I accessed a server via remote desktop
and I can confirm it is working OK for both Chrome and Firefox (server is also located in Sydney)
So it must be my computer
1 Like
My guess is that something is terminating the long connection when accessed from your network, does the /event-stream connection stay open if you open it from your browser directly?
Hello
When called from the browser, the /event-stream connection stops after 30sec-1min like when called from the app
I cannot find the issue… I stopped everything possible on my computer including anti-virus… it is a standalone computer (not company network) and I even try getting internet from my phone as a hotspot
I revert all the code and I can confirm that “SSE client in Pinia + Vue 3” are working well
(I tried from a remote computer)
It just does not work from my computer 
Thank you for your support and sorry to have involved you with this.
1 Like
I read a be more on SSE
“Network proxies and other hardware/software can totally break SSE”
Maybe there is something between my computer and the server
The server is nginx with the configuration following your recommendations
https://docs.servicestack.net/deploy-netcore-to-amazon-linux-2-ami#etc-nginx-conf-d-my-app-org-conf
also tried adding these
proxy_set_header Connection '';
chunked_transfer_encoding off;
Then we have this article
He is suggesting to what you have done in the app-server response headers
But he is also (and other people also do) suggesting this one.
Have you seen this?
X-Accel-Buffering: no;
I’ve not heard of it before but I’ve just added it as response header for the SSE /event-stream in this commit.
You can also add it to your SSE with:
Plugins.Add(new ServerEventsFeature {
OnInit = req => req.Response.AddHeader("X-Accel-Buffering","no")
});
Thank you very much. No change but it is probably good to have
