diff --git a/ui/src/components/cliproxy/control-panel-embed.tsx b/ui/src/components/cliproxy/control-panel-embed.tsx
index 704dab5a..2b0346df 100644
--- a/ui/src/components/cliproxy/control-panel-embed.tsx
+++ b/ui/src/components/cliproxy/control-panel-embed.tsx
@@ -22,6 +22,8 @@ interface ControlPanelEmbedProps {
   port?: number;
 }
 
+// These keys intentionally mirror the upstream management-center auth schema.
+// Keep them in sync with external/Cli-Proxy-API-Management-Center/src/stores/useAuthStore.ts.
 const CONTROL_PANEL_AUTH_STORAGE_KEY = 'cli-proxy-auth';
 const CONTROL_PANEL_LOGIN_FLAG_KEY = 'isLoggedIn';
 const CONTROL_PANEL_API_BASE_KEY = 'apiBase';
@@ -153,6 +155,16 @@ export function ControlPanelEmbed({ port = CLIPROXY_DEFAULT_PORT }: ControlPanel
     }
   }, [authTokensError]);
 
+  useEffect(() => {
+    if (isRemote) {
+      return;
+    }
+
+    return () => {
+      clearLocalControlPanelSession();
+    };
+  }, [isRemote]);
+
   const iframeLoaded = loadedFrameKey === iframeKey;
   const isLoading = !isSessionReady || !iframeLoaded;
 
diff --git a/ui/tests/unit/components/cliproxy/control-panel-embed.test.tsx b/ui/tests/unit/components/cliproxy/control-panel-embed.test.tsx
index e7a7790d..e70c0a52 100644
--- a/ui/tests/unit/components/cliproxy/control-panel-embed.test.tsx
+++ b/ui/tests/unit/components/cliproxy/control-panel-embed.test.tsx
@@ -76,7 +76,7 @@ describe('ControlPanelEmbed', () => {
 
     vi.stubGlobal('fetch', fetchMock);
 
-    render(<ControlPanelEmbed />);
+    const { unmount } = render(<ControlPanelEmbed />);
 
     await waitFor(() => {
       expect(fetchMock).toHaveBeenCalledWith('/api/settings/auth/tokens/raw');
@@ -108,6 +108,15 @@ describe('ControlPanelEmbed', () => {
       expect(window.localStorage.setItem).toHaveBeenCalledWith('managementKey', 'custom-secret');
       expect(window.localStorage.setItem).toHaveBeenCalledWith('isLoggedIn', 'true');
     });
+
+    vi.clearAllMocks();
+    unmount();
+
+    expect(window.localStorage.removeItem).toHaveBeenCalledWith('cli-proxy-auth');
+    expect(window.localStorage.removeItem).toHaveBeenCalledWith('apiBase');
+    expect(window.localStorage.removeItem).toHaveBeenCalledWith('apiUrl');
+    expect(window.localStorage.removeItem).toHaveBeenCalledWith('managementKey');
+    expect(window.localStorage.removeItem).toHaveBeenCalledWith('isLoggedIn');
   });
 
   it('clears stale local control-panel session keys when token bootstrap fails', async () => {