From 0437716905455ebb95d7e726509b81de88b85659 Mon Sep 17 00:00:00 2001
From: Brock Allen <brockallen@gmail.com>
Date: Sat, 31 Aug 2019 09:52:38 -0400
Subject: [PATCH] bug not checking null state on signin response processing
 #931

---
 src/OidcClient.js | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/OidcClient.js b/src/OidcClient.js
index ff1e5eff..b5b69fa0 100644
--- a/src/OidcClient.js
+++ b/src/OidcClient.js
@@ -207,8 +207,14 @@ export class OidcClient {
         Log.debug("OidcClient.processSignoutResponse");
 
         return this.readSignoutResponseState(url, stateStore, true).then(({state, response}) => {
-            Log.debug("OidcClient.processSignoutResponse: Received state from storage; validating response");
-            return this._validator.validateSignoutResponse(state, response);
+            if (state) {
+                Log.debug("OidcClient.processSignoutResponse: Received state from storage; validating response");
+                return this._validator.validateSignoutResponse(state, response);
+            }
+            else {
+                Log.debug("OidcClient.processSignoutResponse: No state from storage; skipping validating response");
+                return response;
+            }
         });
     }