How to Test Navigation in Vibecoded Apps

Visit every route in your app directly by typing the URL in the browser. AI-generated apps with client-side routing often work when navigating within the app but break when loading a deep link directly — the server returns a 404 because it does not know about the client-side route. This is one of the most common deployment issues with vibecoded apps.

Test routes with dynamic parameters: user profiles, product pages, and any URL that includes an ID or slug. Try with valid IDs, nonexistent IDs, and malformed IDs. The app should show appropriate content for valid IDs, a clear 404 page for nonexistent ones, and an error page (not a crash) for malformed parameters.

Navigate through several pages and then use the browser back button. Verify that you return to the previous page with its state intact — scroll position, form data, and filter selections should be preserved. AI-generated SPAs frequently push duplicate history entries or fail to restore scroll position, making the back button unreliable.

Test forward and back navigation in forms and multi-step flows. If a user fills out step 1 of 3, goes to step 2, and hits back, they should return to step 1 with their data preserved. Many vibecoded multi-step forms reset completely on back navigation. Also verify that the back button does not trap users in infinite loops, which happens when redirects push extra history entries.

Verify that navigation menus, sidebars, and breadcrumbs accurately reflect the current location. The active state should highlight the correct menu item on every page. AI-generated navigation often has hardcoded active states or pattern matching that breaks for nested routes — for example, both /settings and /settings/profile might highlight different items or nothing at all.

Test navigation on mobile where the menu typically collapses into a hamburger menu. Verify it opens and closes correctly, that links work and close the menu after navigation, and that the current page indicator is visible. Also test keyboard navigation through the menu using Tab and Enter keys, as covered in the accessibility testing guide.