G217: Providing a mechanism to allow users to remap or turn off character key shortcuts Failures for Success Criterion 2.1.4 F99: Failure of Success Criterion 2.1.4 due to implementing character key shortcuts that cannot be turned off or remapped Back to top Guideline 2.2 – Enough Time Provide users enough time to read and use content. 2.2.1 Timing Adjustable Level A For each time limit that is set by the content, at least one of the following is true: Turn off: The user i
 s allowed to turn off the time limit before encountering it; or Adjust: The user is allowed to adjust the time limit before encountering it over a wide range that is at least ten times the length of the default setting; or Extend: The user is warned before time expires and given at least 20 seconds to extend the time limit with a simple action (for example, "press the space bar"), and the user is allowed to extend the time limit at least ten times; or Real-time Exception: The time limit is a required part of a real-time event (for example, an auction), and no alternative to the time limit is possible; or Essential Exception: The time limit is essential and extending it would invalidate the activity; or 20 Hour Exception: The time limit is longer than 20 hours. Understanding 2.2.1 Show Hide techniques and failures for 2.2.1 Sufficient Advisory Failures Sufficient Techniques for Success Criterion 2.2.1 Note: Other techniques may also be sufficient if they meet the success criterion. See Understanding Techniques. Situation A: If there are session time limits: G133: Providing a checkbox on the first page of a multipart form that allows users to ask for longer session time limit or no session time limit G198: Providing a way for the user to turn the time limit off Situation B: If a time limit is controlled by a script on the page: G198: Providing a way for the user to turn the time limit off G180: Providing the user with a means to set the time limit to 10 times the default time limit SCR16: Providing a script that warns the user a time limit is about to expire AND SCR1: Allowing the user to extend the default time limit Situation C: If there are time limits on reading: G4: Allowing the content to be paused and restarted from where it was paused G198: Providing a way for the user to turn the time limit off SCR33: Using script to scroll content, and providing a mechanism to pause it SCR36: Providing a mechanism to allow users to display moving, scrolling, or auto-updating text in a static window or area Failures for Success Criterion 2.2.1 F40: Failure due to using meta redirect with a time limit F41: Failure of Success Criterion 2.2.1, 2.2.4, and 3.2.5 due to using meta refresh to reload the page F58: Failure of Success Criterion 2.2.1 due to using server-side techniques to automatically redirect pages after a time-out Back to top 2.2.2 Pause, Stop, Hide Level A For moving, blinking, scrolling, or auto-updating information, all of the following are true: Moving, blinking, scrolling: For any moving, blinking or scrolling information that (1) starts automatically, (2) lasts more than five seconds, and (3) is presented in parallel with other content, there is a mechanism for the user to pause, stop, or hide it unless the movement, blinking, or scrolling is part of an activity where it is essential; and Auto-updating: For any auto-updating information that (1) starts automatically and (2) is presented in parallel with other content, there is a mechanism for the user to pause, stop, or hide it or to control the frequency of the update unless the auto-updating is part of an activity where it is essential.