Streaming-first SSE workspace for EventSource testing, parser validation, reconnect behavior, Last-Event-ID diagnostics, and CORS troubleshooting.
Server-Sent Events (SSE) is a W3C standard for streaming events from server to browser over a single persistent HTTP connection. Use this hub to test EventSource endpoints, parse raw event streams, debug reconnect behavior, validate Last-Event-ID continuity, and check CORS compatibility.