From 1a7c88a2b0df64a5d7476063c8d65c09a4e1ebf2 Mon Sep 17 00:00:00 2001
From: Mark Bates <mark@markbates.com>
Date: Thu, 18 Jan 2018 10:24:31 -0500
Subject: [PATCH] fixed issue with multiple response headers being written for
 some prewares fixes #861

---
 app.go | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/app.go b/app.go
index 69f5fda1a..e6d31922f 100644
--- a/app.go
+++ b/app.go
@@ -188,10 +188,7 @@ func (a *App) processPreHandlers(res http.ResponseWriter, req *http.Request) boo
 	sh := func(h http.Handler) bool {
 		h.ServeHTTP(res, req)
 		if br, ok := res.(*Response); ok {
-			if (br.Status < 200 || br.Status > 299) && br.Status > 0 {
-				return false
-			}
-			if br.Size > 0 {
+			if br.Status > 0 || br.Size > 0 {
 				return false
 			}
 		}