do not detect alt-svc if it's already http3

imroc · Jun 16, 2023 · a6ae22b · a6ae22b
1 parent dd9c751
commit a6ae22b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/roundtrip.go b/roundtrip.go
@@ -26,7 +26,7 @@ func (t *Transport) RoundTrip(req *http.Request) (resp *http.Response, err error
 	if err != nil {
 		return
 	}
-	if t.altSvcJar != nil {
+	if resp.ProtoMajor != 3 && t.altSvcJar != nil {
 		if v := resp.Header.Get("alt-svc"); v != "" {
 			t.handleAltSvc(req, v)
 		}