From c6b6e54617265490f9516e095abe40086f5b33df Mon Sep 17 00:00:00 2001
From: Dirk Klimpel <5740567+dklimpel@users.noreply.github.com>
Date: Tue, 16 Mar 2021 12:13:32 +0100
Subject: [PATCH] Fix broken redirect to login page (#116)

---
 src/synapse/authProvider.js | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/src/synapse/authProvider.js b/src/synapse/authProvider.js
index 11db5f0..972d599 100644
--- a/src/synapse/authProvider.js
+++ b/src/synapse/authProvider.js
@@ -35,20 +35,23 @@ const authProvider = {
 
     const logout_api_url =
       localStorage.getItem("base_url") + "/_matrix/client/r0/logout";
-    const token = localStorage.getItem("access_token");
+    const access_token = localStorage.getItem("access_token");
 
     const options = {
       method: "POST",
       user: {
         authenticated: true,
-        token: `Bearer ${token}`,
+        token: `Bearer ${access_token}`,
       },
     };
 
-    return fetchUtils.fetchJson(logout_api_url, options).then(({ json }) => {
-      localStorage.removeItem("access_token");
-      localStorage.removeItem("device_id");
-    });
+    if (typeof access_token === "string") {
+      fetchUtils.fetchJson(logout_api_url, options).then(({ json }) => {
+        localStorage.removeItem("access_token");
+        localStorage.removeItem("device_id");
+      });
+    }
+    return Promise.resolve();
   },
   // called when the API returns an error
   checkError: ({ status }) => {
@@ -62,7 +65,7 @@ const authProvider = {
   checkAuth: () => {
     const access_token = localStorage.getItem("access_token");
     console.log("checkAuth " + access_token);
-    return typeof access_token == "string"
+    return typeof access_token === "string"
       ? Promise.resolve()
       : Promise.reject();
   },