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F10: Failure of SC 2.1.2 and Conformance Requirement 5 due to combining multiple content formats in a way that traps users inside one format type

Applicability

Applies when content creates a situation where the user can enter the content using the keyboard, but can not exit the content using the keyboard.

This failure relates to:

Description

When content includes multiple formats, one or more user agents or plug-ins are often needed in order to successfully present the content to users. For example, a page that includes (X)HTML, SVG, SMIL and XForms may require a browser to load as many as three different plug-ins in order for a user to successfully interact with the content. Some plug-ins create a common situation in which the keyboard focus can become "stuck" in [begin change]a plug-in[end change], leaving a keyboard-only user with no way to return to the [begin change]other[end change] content.

Examples

Resources

No resources available for this technique.

Tests

Procedure

  1. Using a keyboard, navigate through the content.

  2. Check to see that the keyboard focus is not "trapped" and it is possible to move keyboard focus out of the plug-in content without closing the user agent or restarting the system.

Expected Results