Browse trials: free-mock-tests.html catalogue
· free-test.html API sandbox (/api/public/free-tests/…).
This page stays on paid /api/tests/….
No SPA reload: this HTML never calls location.reload(). Saves use
POST /api/tests/:id/progress/batch once every 25 s
(setTimeout chain, not unrelated clicks) after you press Begin test. If you
use Live Server, turn off Auto Refresh (debug: add
?autosaveImmediate=1 for one instant batch), or serve from Express
(http://localhost:3001/index.html) — Live Server reloading the browser wipes timers and
looks like an “auto refresh”. Submit uses POST …/attempt → Mongo +
score. Fetches use cache: no-store.
Resolved API: –