[undertow-dev] SSE: testing time between events

Playing around at the moment, and missing something about the threading situation as it pertains to sending events. In my ServerSentEventConnectionCallback: public void connected(ServerSentEventConnection connection, String lastEventId) { try {   for (int i = 0; i<10; i++){     connection.send("i="+i);     Thread.sleep(1000);   } } catch (Exception e) {   throw new RuntimeException(e); } } Sending events, with one second between each. I’d expect the time between events to be reflected in the browser / client.  However what instead happens is all 10 events arrive within the same millisecond (nanoseconds apart according to Chrome console time). So I’m missing something here.  But I don’t see anything obvious.  For example, there is nothing like a “flush()” on ServerSentEventConnection that could be used after each event is sent. Ideas/guidance? Thanks! Ryan