try older flush method

examples/web/sse_ex/exgom/sse.gom.go

@@ -39,7 +39,7 @@ func Page() g.Node {
 			),
 		),
 		P(
-			g.Text("The new elements uses the sse.Connect attribute to connect to a server-side event streaming countdown."),
+			g.Text("The new elements uses the sse.Connect attribute to connect to a server-sent event streaming countdown."),
 		),
 		Pre(
 			Code(

examples/web/sse_ex/extempl/sse.templ

@@ -32,7 +32,7 @@ templ Page() {
 			</code>
 		</pre>
 		<p>
-			The new elements uses the sse.Connect attribute to connect to a server-side event streaming countdown.
+			The new elements uses the sse.Connect attribute to connect to a server-sent event streaming countdown.
 		</p>
 		<pre>
 			<code class="language-go">

examples/web/sse_ex/sse_ex.go

@@ -2,6 +2,7 @@ package sse_ex
 
 import (
 	"fmt"
+	"log/slog"
 	"net/http"
 	"strconv"
 	"time"
@@ -46,9 +47,16 @@ func (ex *example) countdown(w http.ResponseWriter, r *http.Request) {
 }
 
 func (ex *example) feed(w http.ResponseWriter, r *http.Request) {
-	rc := http.NewResponseController(w)
 	ctx := r.Context()
 
+	flusher, ok := w.(http.Flusher)
+	if !ok {
+		slog.Error("flush not supported")
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write([]byte("flush not supported"))
+		return
+	}
+
 	w.Header().Set("Content-Type", "text/event-stream")
 	w.Header().Set("Cache-Control", "no-cache")
 	w.Header().Set("Connection", "keep-alive")
@@ -62,7 +70,7 @@ func (ex *example) feed(w http.ResponseWriter, r *http.Request) {
 				_ = extempl.Message(countMessage).Render(ctx, w)
 			}
 		})
-		_ = rc.Flush()
+		flusher.Flush()
 		time.Sleep(time.Second)
 	}
 
@@ -73,7 +81,7 @@ func (ex *example) feed(w http.ResponseWriter, r *http.Request) {
 			_ = extempl.Message("Blastoff!").Render(ctx, w)
 		}
 	})
-	_ = rc.Flush()
+	flusher.Flush()
 	time.Sleep(2 * time.Second)
 
 	ex.sendEvent(w, shared.ResetEvent, func() {