Request Cancellation and Stale Protection
Prevent stale responses from overriding newer intent in search and filters.
Pattern level: micro
TL;DR
Abort in-flight requests when user intent changes, and guard render path with latest token.
Implementation hints
- Store an incrementing request token in state.
- Ignore responses that do not match the latest token.
Testing + Accessibility Rubric
| Category | Level | Requirement | Done When |
|---|---|---|---|
| functional | unit | Debounce/cancel behavior avoids stale result rendering. | Typing burst tests prove stale response protection. |
| a11y | integration | Combobox roles, active descendant, and keyboard bindings are correct. | ARIA combobox checks pass in automated and manual tests. |
| a11y | e2e | Result count and active option are announced clearly. | Screen reader walkthrough validates interaction end-to-end. |