aria-describedby on img tag

The purpose of this test page is to confirm user agent support for WCAG Technique ARIA15: Using aria-describedby to provide descriptions of images.

aria-describedby on a non-active image

This is a long text description of an image used to supplement the alt attribute

• NVDA
  • Firefox: does not read the additional description in browse mode.
  • IE: does not read the additional description in browse mode.
• JAWS
  • Firefox: Indicates keyboard shortcut (alt, JawsKey - r) to read descriptive text.
  • IE: does not read the additional description in browse mode.
• VoiceOver
  • iOS / Safari: Reads descriptive text.
  • OSX / Safari: Reads descriptive text.

aria-describedby on img tag within an anchor

This is a long text description of an image used to supplement the alt attribute.

• NVDA
  • Firefox: does not read the additional description in browse mode but it does read it when tabbing to the image.
  • IE: does not read the additional description in browse mode but it does read it when tabbing to the image.
• JAWS
  • Firefox: does not read the additional description in browse mode nor when tabbing to the image.
  • IE: does not read the additional description in browse mode nor when tabbing to the image.
• VoiceOver
  • iOS / Safari: Reads descriptive text.
  • OSX / Safari: does not read the additional description in browse mode nor when tabbing to the image.