From ed9cb77bbaefd3b77d9ad7cb330b0d3c6a865bc8 Mon Sep 17 00:00:00 2001
From: Yuri Kuznetsov <yurikuzn@users.noreply.github.com>
Date: Thu, 6 Feb 2025 12:56:23 +0200
Subject: [PATCH] use bfcache

---
 html/main.html | 38 ++++++++++++++++++++++++++++----------
 1 file changed, 28 insertions(+), 10 deletions(-)

diff --git a/html/main.html b/html/main.html
index cdb94e2aca..866326c552 100644
--- a/html/main.html
+++ b/html/main.html
@@ -13,22 +13,40 @@
         <link rel="alternate icon" href="{{basePath}}{{faviconAlternate}}" type="image/x-icon">
         <link rel="icon" href="{{basePath}}{{favicon}}" type="{{faviconType}}">
         <script nonce="{{nonce}}">
-            window.addEventListener('DOMContentLoaded', () => {
+            let loadedApp;
+
+            const run = app => {
+                {{runScript}}
+            };
+
+            const init = () => {
                 require('{{appClientClassName}}', App => {
                     new App({
                         id: '{{applicationId}}',
                         useCache: {{useCache}},
-                        cacheTimestamp: {{cacheTimestamp}},
-                        appTimestamp: {{appTimestamp}},
-                        basePath: '{{basePath}}',
-                        apiUrl: '{{apiUrl}}',
-                        ajaxTimeout: {{ajaxTimeout}},
-                        internalModuleList: {{internalModuleList}},
-                        bundledModuleList: {{bundledModuleList}},
-                    }, app => {
-                        {{runScript}}
+                    cacheTimestamp: {{cacheTimestamp}},
+                    appTimestamp: {{appTimestamp}},
+                    basePath: '{{basePath}}',
+                    apiUrl: '{{apiUrl}}',
+                    ajaxTimeout: {{ajaxTimeout}},
+                    internalModuleList: {{internalModuleList}},
+                    bundledModuleList: {{bundledModuleList}},
+                }, app => {
+                        loadedApp = app;
+
+                        run(app);
                     });
                 });
+            };
+
+            window.addEventListener('pageshow', event => {
+                if (event.persisted && loadedApp) {
+                    run(loadedApp);
+
+                    return;
+                }
+
+                init();
             });
         </script>
     </head>