2. OperableLevel A
2.5.2 Pointer Cancellation
포인터 취소
Summary
Functions should fire on the up-event, not the down-event. That lets someone who pressed the wrong control slide off it to cancel. For users with limited motor control, this margin for correction is often the only safeguard against mis-taps.
Common failures
- Firing irreversible actions like delete or purchase on `mousedown` or `touchstart`.
Corresponding KWCAG 2.2 items
- 6.5.2 Pointer Cancellation