EventSourceHandler - Failed to connect url

[karthikavk]

when i trying to connect my server, am getting error failed to connect url
but url was open in browser.

es = new EventSource(URI.create("Someurl"), new EventSourceHandler() {
@OverRide
public void onConnect() {
isConnected=Boolean.TRUE;
setTitle(Appconstants.appname+" Print - Connected to Server");
System.out.println("CONNECTED");
log.info("Print - Connected to Server");
}