From bc8b7d059b9b73e43743f77a5235bb94b5427391 Mon Sep 17 00:00:00 2001
From: Joel Speed <Joel.speed@hotmail.co.uk>
Date: Wed, 20 Jun 2018 14:56:13 +0100
Subject: [PATCH] Fix cookie split should account for cookie name

---
 oauthproxy.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/oauthproxy.go b/oauthproxy.go
index 34d8495..f471785 100644
--- a/oauthproxy.go
+++ b/oauthproxy.go
@@ -265,7 +265,7 @@ func (p *OAuthProxy) MakeSessionCookie(req *http.Request, value string, expirati
 		value = cookie.SignedValue(p.CookieSeed, p.CookieName, value, now)
 	}
 	c := p.makeCookie(req, p.CookieName, value, expiration, now)
-	if len(c.Value) > 4096 {
+	if len(c.Value) > 4096-len(p.CookieName) {
 		return splitCookie(c)
 	}
 	return []*http.Cookie{c}