OBJECT with ARIA-LABELLEDBY attribute Screen reader compatibility

Last updated: September 5, 2016

Expected Result: works in a screen reader

Actual Result: causes problems in 19 screen reader / browser combinations

Note: The ARIA Text Alternative Computation allows objects to be labelled by items hidden by CSS

WCAG Technique: ARIA10: Using aria-labelledby to provide a text alternative for non-text content

Code used for this test:


        <object aria-labelledby='object-aria-labelledby-id' data='startstop_movieclips.swf' type='application/x-shockwave-flash'>
        </object>
        <p id='object-aria-labelledby-id' style='display:none'>This is ARIA-LABELLEDBY text</p>
    

Change History

Last updated: September 5, 2016

Screen readerBrowserModeNotesWhat the user hears
Fail NVDA 2016.2FF48 ReadingNothing voiced for object - no indication it exists
Fail NVDA 2016.2IE11 ReadingNo description of non-text content Speak Embedded object
Fail NVDA 2015.2FF41 ReadingNo description of non-text content Speak Button. A plugin is needed to display this content. Button, hide plugin.
Fail NVDA 2015.2IE11 ReadingVoices URL of page Speak Embedded object, tests slash SR media dot HTML
Fail JAWS 17.0.2619FF48 ReadingNothing voiced for object - no indication it exists
Fail JAWS 17.0.2619IE11 ReadingNo description of non-text content Speak Flash start. Start button. Stop button. Flash end.
Fail JAWS 16.0.4350FF41 ReadingNothing voiced for object - no indication it exists
Fail JAWS 16.0.4350IE11 ReadingNo description of non-text content Speak Flash start. Start button. Stop button. Flash end.
Fail JAWS 15.0.9023FF41 ReadingNothing voiced for object - no indication it exists
Fail JAWS 15.0.9023IE11 ReadingNo description of non-text content Speak Flash start. Start button. Stop button. Flash end.
Fail JAWS 14.0.9002FF41 ReadingNothing voiced for object - no indication it exists
Fail JAWS 14.0.9002IE11 ReadingNo description of non-text content Speak Flash start. Start button. Stop button. Flash end.
Fail WindowEyes 9.2IE11 ReadingNothing voiced for object - no indication it exists
Fail WindowEyes 8.4IE11 ReadingNo description of non-text content Speak Start button. Start button. Button.
Fail VoiceOver OSX 10.11Safari 9.1.2 ReadingNothing voiced for object - no indication it exists
Fail VoiceOver OSX 10.10Safari 9.0.1 ReadingNothing voiced for object - no indication it exists
Fail VoiceOver iOS 9.1Safari iOS 9.1TouchNothing voiced for object - no indication it exists
Fail VoiceOver iOS 8.4Safari iOS 8.4TouchNothing voiced for object - no indication it exists
Fail Dolphin SR 15.05IE11 ReadingNo description of non-text content Speak Object, start button. Stop button.

SortSite rules: AccWcag1-1.1.11 AccWcag2-F30-1

Test notes

The threshold for inclusion in these results is 5% usage in the most recent WebAIM screen reader survey. Chrome and Android still fall below the 5% threshold.

All tests were carried out with screen reader factory settings. JAWS in particular has a wide variety of settings controlling exactly what gets spoken.

Screen readers allow users to interact in different modes, and can produce very different results in each mode. The modes used in these tests are:

In the «What the user hears» column: