BREAKING CHANGE: EventStreamChan signature changed from
(chan<- Event, <-chan error)
to
(eventChan <-chan Event)
The caller now creates and passes the channel instead of receiving it.
The errChan return value is removed.
The old non-blocking design allowed the handler to return before the SSE
stream ended, causing ServeHTTP to return the Context to the pool while
the internal goroutine was still writing to the pooled writer — a data
race across requests. The new blocking design keeps the handler inside
EventStreamChan until the event channel is closed or the client
disconnects, ensuring the Context remains bound throughout the stream.
- Caller creates channel, producer goroutine sends events
- EventStreamChan blocks handler until stream ends
- Internal goroutine captures stable references (Flusher, context.Context)
instead of holding *Context pointer
- Nil guard on Flusher type assertion
- Add sse_test.go covering blocking, disconnect, and event format
- Update docs/sse.md for new API
- Implement ShouldBind with support for JSON, Form, WANF, and GOB formats
- Add ShouldBindForm, ShouldBindGOB, and helper functions for form binding
- Use fmt.Appendf instead of fmt.Sprintf for better performance
- Replace interface{} with any for modern Go style
- Use maps.Copy for cleaner header copying
- Update strings.SplitSeq to use range over strings.Seq
- Remove deprecated placeholder comments and add proper implementations
- Fix reflect.Pointer usage for Go 1.22+ compatibility
