snapshot of https://github.com/tldraw/tldraw.git (main, 2026-09-23; blobs > 131072B omitted)

apps/dotcom/client/e2e/tests/client-too-old.scenario.spec.ts

@@ -0,0 +1,25 @@
+import { expect, test } from '../fixtures/scenario-test'
+
+test.describe.configure({ mode: 'parallel' })
+
+test.describe('client version scenarios', () => {
+	test('owner recovers when Zero reports the client is too old', async ({ owner }) => {
+		await owner.editor.isLoaded()
+		const reloadButton = owner.page.locator('button:has-text("Reload")')
+
+		// Zero (not our own backend) owns "client too old" detection: it fires `onUpdateNeeded` when
+		// the client's schema/protocol falls behind what zero-cache supports. There's no supported way
+		// to force that mismatch from a test, so this triggers the same `onClientTooOld` callback the
+		// Zero client would call, and verifies the UI + reload-recovery flow that callback protects.
+		await owner.page.evaluate(() => {
+			;(window as any).app.__test__triggerClientTooOld()
+		})
+		await expect(owner.page.getByText('Please reload the page')).toBeVisible()
+		await expect(reloadButton).toBeVisible()
+
+		await reloadButton.click()
+		await owner.editor.isLoaded()
+		await owner.editor.ensureSidebarOpen()
+		await owner.sidebar.createFileButton.click()
+	})
+})