From 62e40d411950f8eaec922beeaeb03d4a2ac8beda Mon Sep 17 00:00:00 2001
From: Vasiliy Tolstov <v.tolstov@unistack.org>
Date: Mon, 14 Dec 2020 14:21:04 +0300
Subject: [PATCH] fix panic

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
---
 http.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/http.go b/http.go
index 9934818..96be969 100644
--- a/http.go
+++ b/http.go
@@ -252,6 +252,10 @@ func (h *httpServer) Start() error {
 	hd := h.hd
 	h.RUnlock()
 
+	if hd == nil {
+		return errors.New("Server required http.Handler")
+	}
+
 	ln, err := net.Listen("tcp", config.Address)
 	if err != nil {
 		return err