Content restricts input modalities.

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content-restricts-input-mechanisms

Rule

Web content MUST NOT restrict use of input modalities available on a platform except where the restriction is essential, required to ensure the security of the content, or required to respect user settings.

Background

Users may employ a variety of input mechanisms when interacting with web content. These may be a combination of mechanisms such as a keyboard or keyboard-like interfaces and pointer devices like a mouse, stylus or touchscreen. Even though a device may have a primary input mechanism, the user may choose to employ alternative input mechanisms when interacting with a device. Users should be able to switch input mechanisms at any point should the user determine that certain tasks and interactions are more easily accomplished by using an alternative input mechanism.

How to Fix

To fix this issue, ensure all of the following are true:

  1. Users can interact with web content with whichever input mechanism is preferred and available to them.
  2. Users may switch between input mechanisms when they desire or the circumstances require it.
  3. Users are allowed to add and remove input mechanisms at any point, where supported by the operating system.