gridsuite · ghazwarhili · Jun 8, 2026 · Jun 8, 2026 · Jun 16, 2026 · Jun 16, 2026
diff --git a/index.html b/index.html
@@ -17,6 +17,6 @@
     <body class="singlestretch-parent singlestretch-child">
         <noscript>You need to enable JavaScript to run this app.</noscript>
         <div id="root" class="singlestretch-parent singlestretch-child"></div>
-        <script type="module" src="/src/index.jsx"></script>
+        <script type="module" src="/src/index.tsx"></script>
     </body>
 </html>
diff --git a/package.json b/package.json
@@ -11,6 +11,7 @@
     "dependencies": {
         "@emotion/react": "^11.14.0",
         "@emotion/styled": "^11.14.1",
+        "@grgit idsuite/commons-ui": "0.237.0",
         "@gridsuite/commons-ui": "0.240.0",
-        "@grgit idsuite/commons-ui": "0.237.0",
-        "@gridsuite/commons-ui": "0.240.0",
+        "`@gridsuite/commons-ui`": "0.237.0",
-        "@grgit idsuite/commons-ui": "0.237.0",
-        "@gridsuite/commons-ui": "0.240.0",
+        "`@gridsuite/commons-ui`": "0.237.0",
         "@hello-pangea/dnd": "^18.0.1",
         "@hookform/resolvers": "^4.1.3",

diff --git a/src/components/silent-renew.tsx b/src/components/silent-renew.tsx
@@ -0,0 +1,42 @@
+/**
+ * Copyright (c) 2026, RTE (http://www.rte-france.com)
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+import { useCallback, useEffect, useState } from 'react';
+import type { UserManager } from 'oidc-client-ts';
+import {
+    handleSilentRenewCallback,
+    initializeAuthenticationProd,
+    SilentRenewCallbackHandler,
+} from '@gridsuite/commons-ui';
+import { getCachedIdpSettings } from 'services/utils';
+
+export default function SilentRenew() {
+    const [userManager, setUserManager] = useState<UserManager | null>(null);
+
+    useEffect(() => {
+        initializeAuthenticationProd(
+            () => undefined /* dispatch: unused when isSilentRenew=true */,
+            true /* isSilentRenew */,
+            getCachedIdpSettings /* reads the cache instead of fetching idpSettings.json */,
+            false /* isSigningCallback */
+        )
+            .then(setUserManager)
+            .catch((e) => console.error('Silent renew init failed:', e));
+    }, []);
+
+    const handleSilentRenewCallbackClosure = useCallback(() => {
+        if (userManager) {
+            handleSilentRenewCallback(userManager);
+        }
+    }, [userManager]);
+
+    return (
+        <SilentRenewCallbackHandler
+            userManager={userManager}
+            handleSilentRenewCallback={handleSilentRenewCallbackClosure}
+        />
+    );
+}
diff --git a/src/index.jsx b/src/index.jsx
diff --git a/src/index.tsx b/src/index.tsx
@@ -0,0 +1,28 @@
+/**
+ * Copyright (c) 2020, RTE (http://www.rte-france.com)
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+import { createRoot } from 'react-dom/client';
+import SilentRenew from './components/silent-renew';
+import { SILENT_RENEW_CALLBACK_PATH } from './services/utils';
+
+const container = document.getElementById('root');
+const root = createRoot(container!);
+
+if (globalThis.location.pathname.endsWith(SILENT_RENEW_CALLBACK_PATH)) {
+    root.render(<SilentRenew />);
+} else {
+    Promise.all([
+        import('core-js/es/array/flat-map'),
+        import('typeface-roboto'),
+        import('@xyflow/react/dist/base.css'),
+        import('./index.css'),
+        import('./configure-yup-init'),
+        import('./components/app-wrapper'),
+    ]).then(([, , , , , { default: AppWrapper }]) => {
+        root.render(<AppWrapper />);
+    });
+}
diff --git a/src/module-core-js-array-flat-map.d.ts b/src/module-core-js-array-flat-map.d.ts
@@ -0,0 +1,8 @@
+/**
+ * Copyright (c) 2026, RTE (http://www.rte-france.com)
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+declare module 'core-js/es/array/flat-map';
diff --git a/src/module-typeface-roboto.d.ts b/src/module-typeface-roboto.d.ts
@@ -0,0 +1,8 @@
+/**
+ * Copyright (c) 2026, RTE (http://www.rte-france.com)
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+declare module 'typeface-roboto';
diff --git a/src/services/utils.ts b/src/services/utils.ts
@@ -4,7 +4,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
-import { catchErrorHandler, fetchStudyMetadata, StudyMetadata } from '@gridsuite/commons-ui';
+import { catchErrorHandler, fetchStudyMetadata, IdpSettings, StudyMetadata } from '@gridsuite/commons-ui';
 export const FetchStatus = {
     SUCCEED: 'SUCCEED',
     FAILED: 'FAILED',
@@ -13,7 +13,8 @@ export const FetchStatus = {
 };
 
 export const MAX_INT32: number = 2147483647;
-
+const IDP_SETTINGS_CACHE_KEY = 'gridsuite-idp-settings';
+export const SILENT_RENEW_CALLBACK_PATH = '/silent-renew-callback';
 type DefaultParameters = StudyMetadata['defaultParametersValues'];
 export const getWsBase = () => document.baseURI.replace(/^http:\/\//, 'ws://').replace(/^https:\/\//, 'wss://');
 
@@ -49,8 +50,34 @@ function fetchEnv() {
     return fetch('env.json').then((res) => res.json());
 }
 
-export function fetchIdpSettings() {
-    return fetch('idpSettings.json').then((res) => res.json());
+// Always hits the network: picks up config changes on each full app load
+// AND refreshes the cache read by the silent-renew iframe.
+export function fetchIdpSettings(): Promise<IdpSettings> {
+    return fetch('idpSettings.json')
+        .then((res) => res.json())
+        .then((settings: IdpSettings) => {
+            try {
+                localStorage.setItem(IDP_SETTINGS_CACHE_KEY, JSON.stringify(settings));
+            } catch (e) {
+                console.warn('Failed to cache IdP settings:', e);
+            }
+            return settings;
+        });
+}
+
+// Used only on the silent-renew path: reads the cache (no network),
+// falls back to a real fetch if the cache is missing/corrupted.
+export function getCachedIdpSettings(): Promise<IdpSettings> {
+    try {
+        const cached = localStorage.getItem(IDP_SETTINGS_CACHE_KEY);
+        if (cached) {
+            return Promise.resolve(JSON.parse(cached) as IdpSettings);
+        }
+    } catch (e) {
+        // localStorage unavailable, or cache corrupted -> fall back to fresh fetch
+        console.warn('Failed to read cached IdP settings:', e);
+    }
+    return fetchIdpSettings();
 }
 
 export function fetchVersion() {