Success Criterion 2.3.1 - Level A
Three Flashes or Below Threshold
Ensure no more than three flashes per second are shown anywhere in the app. This can cause an epileptic seizure. Warnings do not work well, because they are often overlooked. This is especially the case with children who cannot read yet.
More than three flashes per second can trigger an epileptic seizure.
“Are more than three flashes per second shown anywhere?“
This can be tested without assistive technologies.
Prevent frequent flashes
On Android, flashing content often uses
Timer. Check if these objects are used to show more than three flashes per second.
If your app contains any videos, also check if these contain more than three flashes per second.
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