Coffee Cart Checkout · Bug Hunt

A bug-hunt page with exactly 5 planted bugs. Add drinks, tweak quantities, apply PIVOT10. The till fights back.

Add drinks, tweak quantities, apply PIVOT10. The till fights back.

Coffee Cart Checkout is a bug-hunt page on Fun UI Playground hiding exactly 5 planted bugs — deviations from the spec printed on the page. Add drinks, tweak quantities, apply PIVOT10. The till fights back. Hunt them by hand, or assert against the spec and watch the assertions fail; the spoilers stay behind a confirmation click.

Other bug hunts

• Owlery Registration — 5 planted bugs
• Park Gate Log — 5 planted bugs
• Shuttle Booking Wizard — 4 planted bugs
• Council Election — 5 planted bugs

Updated 2026-08-14

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