SSE has its own API (EventSource), it's not a normal fetch/ajax request. https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_

SSE has its own API (EventSource), it's not a normal fetch/ajax request. https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events https://developer.mozilla.org/en-US/docs/Web/API/Server-sent...