- Success Criterion 2.1.1
- Conformance level A
Action That Only Works With a Double-Click
2.1.1 — Keyboard
Scenario
Setting
A ride-hailing app's trip booking screen
What’s wrong
Double-click-only activations.
Example
Watch a ride-hailing app's trip booking screen closely and you'll spot this: double-click-only activations.
Why it matters
Blind users, people with motor disabilities, and anyone operating the interface without a pointer. On a ride-hailing app's trip booking screen, this barrier means they get stuck and can't reach the control.
How to test
Tab to the control and press Enter once: if activation requires a double-click and single Enter does nothing, it fails.
How to fix
Trigger on single click/Enter — never require double-click as the only activation.
Outcome
Corrected, a ride-hailing app's trip booking screen now lets a visitor complete the task using only the keyboard.
Who is affected
Blind users, people with motor disabilities, and anyone operating the interface without a pointer.
Learn more
- Understanding Understanding document (opens in a new tab)
Related scenarios
- Feature That Only Responds to Mouse Events, Not the Keyboard
- Element That Loses Focus the Instant It’s Reached by Keyboard
- Clickable Element Acting Like a Link With No Real Keyboard Role
- Clickable Div With No Keyboard Focus or Key Handling at All
- Focusable Element That Enter and Space Don’t Actually Activate
- Custom Dropdown That Can’t Be Operated by Keyboard Arrows