Mecure sbscription not working, always SSE status 2

[hgalt]

I had it for awhile running but now I had to start from the beginning.
The update is working fine but I cannot subscribe to the hub.
My Caddyfile:

`hpradio.country-radio.eu {

mercure {
	publisher_jwt !ChangeThisMercureHubJWTSecretKey!
	subscriber_jwt !ChangeThisMercureHubJWTSecretKey!
	anonymous
	cors_origins *
	publish_origins *
	
}` 

My jQuery file:

const sse = new EventSource("https://hpradio.country-radio.eu/.well-known/mercure?topic=songsUpdate"); sseReady(); function sseReady(){ setTimeout(() => { alert("SSE State2: " + sse.readyState); }, 10000); }

The ready state always returns a 2.
I first want to get it running with anonymous to check functionality.
Do I have to send a subscriber_jwt with the request?
In the log file I can't see any message.

So, what is missing?

[hgalt]

Anybody has a hint for me, that could be maybe solve my problem?
Thanks.