We have a delivery app running behind cloudfare. Our app sends notifications to its clients using server side events and an open websocket (to each client). It was working without any problems until yesterday. The server side events now take minutes to be sent to the clients, but are sent instantaneously if we disable completely cloudfare cache (by enabling development mode).
We believe something has changed in cloudfare since yesterday as the only thing that solves the problem is the development mode. Did anyone have the same experience? Does it have any solution besides disabling the cache?