diff --git a/tests/ui-stability.spec.mjs b/tests/ui-stability.spec.mjs
index b2d2418..7a5dc84 100644
--- a/tests/ui-stability.spec.mjs
+++ b/tests/ui-stability.spec.mjs
@@ -120,30 +120,41 @@ test('a delayed menu editor cannot move back into a section that was already lef
 
 test('full app stays stable across settings, menu, calendar and delayed background refreshes',async({page})=>{
  const errors=[];page.on('pageerror',e=>errors.push(String(e)));
+ const workspaceId='22222222-2222-4222-8222-222222222222',servedRpcs=new Set();
  const expires=Math.floor(Date.now()/1000)+3600,user={id:'11111111-1111-4111-8111-111111111111',aud:'authenticated',role:'authenticated',email:'ui-test@example.invalid',app_metadata:{provider:'email'},user_metadata:{}};
  const token=[{alg:'HS256',typ:'JWT'},{sub:user.id,role:'authenticated',aud:'authenticated',exp:expires,iat:expires-3600,aal:'aal1'},'test'].map(x=>typeof x==='string'?x:Buffer.from(JSON.stringify(x)).toString('base64url')).join('.');
  const session={access_token:token,refresh_token:'test-refresh',token_type:'bearer',expires_in:3600,expires_at:expires,user};
- await page.addInitScript(value=>localStorage.setItem('sb-usfjwhztqoopzzfmfbis-auth-token',JSON.stringify(value)),session);
+ await page.addInitScript(({session,workspaceId})=>{
+  localStorage.setItem('sb-usfjwhztqoopzzfmfbis-auth-token',JSON.stringify(session));
+  // This test starts inside an existing workspace. Onboarding/reload is covered
+  // separately; do not abort a background request by switching tenants here.
+  localStorage.setItem('sunCloudV2Config',JSON.stringify({workspaceId,localWorkspaceId:workspaceId,tenantStorageReady:true}));
+ },{session,workspaceId});
  await page.route('https://**',r=>r.abort());
  const handle=async route=>{
   const url=new URL(route.request().url()),path=url.searchParams.get('__caterium_path')||url.pathname;
-  const headers={'access-control-allow-origin':'*','access-control-allow-headers':'authorization,apikey,content-type,x-client-info','access-control-allow-methods':'GET,POST,OPTIONS'};
+  const requestHeaders=await route.request().allHeaders();
+  // Test-only CORS response: acknowledge the headers actually sent by the SDK,
+  // including metadata headers added by new SDK versions and browser preflights.
+  const headers={'access-control-allow-origin':requestHeaders.origin||'http://127.0.0.1:4173','access-control-allow-credentials':'true','access-control-allow-headers':requestHeaders['access-control-request-headers']||Object.keys(requestHeaders).join(','),'access-control-allow-methods':'GET,POST,OPTIONS'};
   if(route.request().method()==='OPTIONS')return route.fulfill({status:204,headers});
   let data=null;
   if(path==='/auth/v1/user')data=user;
-  else if(path.endsWith('/sun_my_workspaces'))data=[{id:'22222222-2222-4222-8222-222222222222',name:'Тестовая компания',role:'admin',is_active:true,permissions:{}}];
+  else if(path.endsWith('/sun_my_workspaces'))data=[{id:workspaceId,name:'Тестовая компания',role:'admin',is_active:true,permissions:{}}];
   else if(path.endsWith('/sun_is_platform_admin'))data=false;
+  else if(path.endsWith('/caterium_trial_demo_status'))data={canInstall:false,canUpgrade:false};
   else if(path.endsWith('/sun_subscription_snapshot'))data={plan_id:'full',plan_name:'Полный',status:'active',access_mode:'full',features:Object.fromEntries('orders calendar clients catalog_view catalog_edit production shopping stock routes mailings money stats_basic stats_advanced team suppliers print settings branding client_offers offer_templates backups audit users_manage'.split(' ').map(k=>[k,true]))};
   else if(path.endsWith('/sun_fetch_app_state'))data=url.searchParams.get('select')==='revision'?{revision:1}:[{revision:1,payload:{format:'sun-cloud-v2',version:2,storage:{sunOrders:{t:'j',v:[]},sunBoxes:{t:'j',v:[]}}}}];
-  return route.fulfill({contentType:'application/json',body:JSON.stringify(data),headers});
+  await route.fulfill({contentType:'application/json',body:JSON.stringify(data),headers});
+  if(path.includes('/rpc/'))servedRpcs.add(path.split('/').pop());
  };
- // The real transport can use either configured proxy while the first document
- // reloads after workspace discovery. Both belong to this local server fixture.
+ // Both configured transports stay within the mocked backend.
  await page.route('**://api.caterium.ru/**',handle);
  await page.route('**/api/index.php?**',handle);
  await page.goto('/index.html',{waitUntil:'domcontentloaded'});
  await expect(page.locator('body > header')).toBeVisible({timeout:20000});
  await page.waitForFunction(()=>window.SunOpsUXV1762&&window.SunSaaSV16?.getSnapshot());
+ await expect.poll(()=>servedRpcs.has('caterium_trial_demo_status')).toBe(true);
  const nav=page.locator('header nav');
  for(const name of ['Настройки','Меню','Календарь','Заказы','Настройки']){
   await nav.getByRole('button',{name,exact:true}).click();