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Question

I am trying to send an event from the server to the client and register it on their end.

my go code:

w.Header().Set("Content-Type", "text/event-stream")
w.Header().Set("Cache-Control", "no-cache")
w.Header().Set("Connection", "keep-alive")
w.Header().Set("Access-Control-Allow-Origin", "*")

fmt.Fprintf(w, "id: %v
event: msg
message: %v

", id, "hello")
fmt.Printf("id: %v
event: msg
message: %v

", id, "hello")

id++

Client side JS:

function dump_event(e) {
    console.log("received event")
    $("#output").append("id: " + e.lastEventId + "
event: " +e.type + "
message: " + e.data + "

");
}

$(function() {
    $("#listen").on('click', function (e) {
        e.preventDefault()
        if (source != null) {
            source.close();
        }
        source = new EventSource($("#backend").val() + $("#channel").val());
        source.addEventListener('msg', dump_event);
        source.addEventListener('timeout', dump_event);
    });

While fiddler does show that I actually received data, it is not console logged. I would really appreciate some help, am I doing something wrong?