fix: panic with metrics recorder.

2019-09-30 14:42:04 +02:00 · 2019-09-30 14:42:04 +02:00 · 33a1499bdd
parent 211fa18ac2
commit 33a1499bdd
1 changed files with 3 additions and 1 deletions
--- a/pkg/middlewares/metrics/recorder.go
+++ b/pkg/middlewares/metrics/recorder.go
@ -33,5 +33,7 @@ func (r *responseRecorder) CloseNotify() <-chan bool {

 // Flush sends any buffered data to the client.
 func (r *responseRecorder) Flush() {
-	r.ResponseWriter.(http.Flusher).Flush()
+	if f, ok := r.ResponseWriter.(http.Flusher); ok {
+		f.Flush()
+	}
 }