From 479ee9af4905a89fdc8d33fc3108463edd9869f9 Mon Sep 17 00:00:00 2001
From: Ludovic Fernandez <ldez@users.noreply.github.com>
Date: Thu, 22 Nov 2018 16:52:03 +0100
Subject: [PATCH] Fix partial declaration of authentication.

---
 provider/label/partial.go      | 2 ++
 provider/label/partial_test.go | 7 +++++++
 2 files changed, 9 insertions(+)

diff --git a/provider/label/partial.go b/provider/label/partial.go
index d4b7652ad..feb8eaab7 100644
--- a/provider/label/partial.go
+++ b/provider/label/partial.go
@@ -109,6 +109,8 @@ func GetAuth(labels map[string]string) *types.Auth {
 		auth.Digest = getAuthDigest(labels)
 	} else if HasPrefix(labels, TraefikFrontendAuthForward) {
 		auth.Forward = getAuthForward(labels)
+	} else {
+		return nil
 	}
 
 	return auth
diff --git a/provider/label/partial_test.go b/provider/label/partial_test.go
index 5ffa6415c..7dd218284 100644
--- a/provider/label/partial_test.go
+++ b/provider/label/partial_test.go
@@ -732,6 +732,13 @@ func TestGetAuth(t *testing.T) {
 			labels:   map[string]string{},
 			expected: nil,
 		},
+		{
+			desc: "should return nil when no real auth",
+			labels: map[string]string{
+				TraefikFrontendAuthHeaderField: "myHeaderField",
+			},
+			expected: nil,
+		},
 		{
 			desc: "should return a basic auth",
 			labels: map[string]string{