From 8a0b35e95ae8d2e073e3eaf1906549fbeb706aa6 Mon Sep 17 00:00:00 2001 From: Rohith <gambol99@gmail.com> Date: Sun, 7 Jan 2018 12:02:40 +0000 Subject: [PATCH] Method Check Ensuring the http.Hijacker is implemented by the ResponseWriter --- utils.go | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/utils.go b/utils.go index 7acc7a9..ac1b5ab 100644 --- a/utils.go +++ b/utils.go @@ -268,7 +268,10 @@ func tryUpdateConnection(req *http.Request, writer http.ResponseWriter, endpoint defer tlsConn.Close() // step: we need to hijack the underlining client connection - clientConn, _, err := writer.(http.Hijacker).Hijack() + clientConn, ok, err := writer.(http.Hijacker).Hijack() + if !ok { + return errors.New("writer does not implement http.Hijacker method") + } if err != nil { return err } -- GitLab