Issues found via OATMEAL tests are given a Priority Level from P1 (most severe) to P4 (least severe).
A barrier that makes completion of a task impossible for some users.
Keyboard focus trapped
Why: User cannot proceed through page
Button not operable with keyboard alone
Why: User cannot active call to action (e.g "Buy it Now")
A barrier that makes completion of a task difficult for some users.
Workaround: User can use other magnifying software or device
Form field lacking a visible or programmatic label
Workaround: User can explore adjacent elements to determine context
Color contrast below the contrast minimum
Workaround: User can provide a custom stylesheet
Focus indicator missing on element, but present on adjacent elements
Workaround: User can determine focus by navigating through surrounding elements
Keyboard focus does not go where the user expects
User has to discover how to get focus where they expect it to be
A barrier that makes completion of a task tedious or annoying for some users.
Widget interaction different from the established pattern
Annoying: User has to learn multiple of the same type of widget and then figure out which they're using each time
Page missing "Skip to Main"
Tedious and Annoying: User has to navigate through all repeated header elements on every page
Redundant labeling on a button, link, or input
Tedious: User has to listen through extraneous information
A non-barrier that technically fails accessibility guidelines.
Non-unique IDs on unreferenced elements
Duplicated attributes with the same value