title: SSE Server Sent Events - Client keep sending requests (like polling)
body: <p>How come every site explains that in SSE a single connection stays opened between client and server "With SSE, a client sends a standard HTTP request asking for an event stream, and the server responds initially with a standard HTTP response and holds the connection open"</p>
  
  <p>And then, when server decides it can send data to the client while what I am trying to implement SSE I see on fiddler requests being sent every couple of seconds</p>
  
  <p>For me it feels like long polling and not a one single connection kept opened.</p>
  
  <p>Moreover, It is not that the server decides to send data to the client and it sends it but it sends data only when the client sends next request</p>
  
  <p>If i respond with "retry: 10000" even tough something has happened that the server wants to notify right now, will get to the client only on the next request (in 10 seconds from now) which for me does not really looks like connection that is kept opened and server sends data as soon as he wants to</p>
  
  <p><img src="https://i.stack.imgur.com/qqarj.png" alt="fiddler sse"></p>