From 7b806cf5868b185b8ec4fd07d96de2f871da95a5 Mon Sep 17 00:00:00 2001
From: Dakota Walsh <101994734+dakota-portainer@users.noreply.github.com>
Date: Fri, 5 Aug 2022 15:38:45 +1200
Subject: [PATCH] fix(cache): trigger page reload on logout (#7407)

When portainer is restarted the user's session is invalidated and as
soon as they start clicking around they will be logged out. This PR does
two additional things when this happens.

1) We trigger a browser page reload which will force the client the grab
   the latest version of our js, css, etc. Previously if a user updated
   portainer, but never clicked the browser's refresh button they would
   never see new css changes.

2) We also set "cache-control no-cache" on the index.html header. Since
   portainer is an SPA and the the index.html is very small it makes
   sense to avoid letting the browser cache it so that the user is
   always given the latest version when the above reload is triggered.
---
 app/index.html            | 3 +++
 app/portainer/__module.js | 1 +
 2 files changed, 4 insertions(+)

diff --git a/app/index.html b/app/index.html
index 25aec60e5..fe9ad7081 100644
--- a/app/index.html
+++ b/app/index.html
@@ -5,6 +5,9 @@
     <title>Portainer</title>
     <meta name="description" content="" />
     <meta name="author" content="<%= author %>" />
+    <meta http-equiv="cache-control" content="no-cache" />
+    <meta http-equiv="expires" content="0" />
+    <meta http-equiv="pragma" content="no-cache" />
     <base id="base" />
     <script>
       if (window.origin == 'file://') {
diff --git a/app/portainer/__module.js b/app/portainer/__module.js
index 3664b7241..5b758de45 100644
--- a/app/portainer/__module.js
+++ b/app/portainer/__module.js
@@ -22,6 +22,7 @@ async function initAuthentication(authManager, Authentication, $rootScope, $stat
   $rootScope.$on('unauthenticated', function (event, data) {
     if (!_.includes(data.config.url, '/v2/') && !_.includes(data.config.url, '/api/v4/') && isTransitionRequiresAuthentication($state.transition)) {
       $state.go('portainer.logout', { error: 'Your session has expired' });
+      window.location.reload();
     }
   });