fix return

caddywebp.go

@@ -112,7 +112,7 @@ func (s Webp) ServeHTTP(w http.ResponseWriter, r *http.Request, next caddyhttp.H
 	default:
 		return next.ServeHTTP(w, r)
 	}
-	
+
 	img, err := decoder(bytes.NewReader(resp.Body.Bytes()))
 	if err != nil || img == nil {
 		log.Println(err)
@@ -128,7 +128,7 @@ func (s Webp) ServeHTTP(w http.ResponseWriter, r *http.Request, next caddyhttp.H
 
 	fh,err:=os.Create(cacheFile)
 	fh.Write(buf.Bytes())
-	w.Write(buf.Bytes())
+//	w.Write(buf.Bytes())
 
 	buf.WriteTo(fh)
 	fh.Close()