Stop rendering after an invalid Accept value

views.go

@@ -104,6 +104,7 @@ func (rl *rushlink) render(w http.ResponseWriter, r *http.Request, status int, t
 	if err != nil {
 		w.WriteHeader(http.StatusNotAcceptable)
 		fmt.Fprintf(w, "error parsing Accept header: %v\n", err)
+		return
 	}
 
 	// Add the request to the template data