img with null alt and non-null aria-labelledby attributes Screen reader compatibility

ARIA HTML
Dec 12, 2023

Expected Result: causes problems in some screen readers

Actual Result: causes problems in 67 screen reader / browser combinations

For expected failures, the results show which AT combos the failures affect. Results are recorded from the user's viewpoint, so describe the user impact of authoring errors.

Author intent is unclear in this markup since ALT='' marks image as presentational, but aria-labelledby gives it an accessible name.

Code used for this test:


		<img src='1234.png' alt='' aria-labelledby='img-null-alt-aria-labelledby-id'>
		<p id='img-null-alt-aria-labelledby-id'>This is the aria-labelledby</p>
	

Change History

Last updated: December 12, 2023

  • Bad NVDA with Chrome Causes problems from NVDA 2018.4 to NVDA 2023.3
  • Bad NVDA with IE Causes problems from NVDA 2015.2 to NVDA 2019.2
  • Bad NVDA with FF Causes problems from NVDA 2015.2 to NVDA 2023.3
  • Bad JAWS with Chrome Causes problems from JAWS 2018.1811.2 to JAWS 2023.2311.34
  • Bad JAWS with IE Causes problems from JAWS 16.0.4350 to JAWS 2019.1912.1
  • Bad JAWS with FF Causes problems from JAWS 16.0.4350 to JAWS 2023.2311.34
  • Bad VoiceOver macOS Causes problems from VoiceOver macOS 10.10 to VoiceOver macOS 13.6
  • Bad VoiceOver iOS Causes problems from VoiceOver iOS 9.2 to VoiceOver iOS 16.6
  • Bad WindowEyes with IE Causes problems in WindowEyes 9.2
  • Bad Dolphin with IE Causes problems in Dolphin SR 15.05
Screen readerBrowserModeNotesWhat the user hears
Fail NVDA 2023.3Chrome 120 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2023.3FF 115 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2023.3Edge 120 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2022.2Chrome 105 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2022.2FF 102 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2022.2Edge 105 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2021.2Chrome 94 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2021.2FF 91 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2021.2Edge 94 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2020.2Chrome 86 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2020.2FF 78 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2020.2Edge 92 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2019.2Chrome 79 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2019.2FF 68 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2019.2IE11 Reading Image ignored, and aria label read This is the aria-labelledby
Fail NVDA 2018.4Chrome 73 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2018.4FF 60 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2018.4IE11 Reading Image ignored, and aria label read This is the aria-labelledby
Fail NVDA 2017.3FF 60 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2017.3IE11 Reading Image ignored, and aria label read This is the aria-labelledby
Fail NVDA 2016.2FF 48 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2016.2IE11 Reading Image ignored, and aria label read This is the aria-labelledby
Fail NVDA 2015.2FF 48 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail NVDA 2015.2IE11 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail JAWS 2023.2311.34Chrome 120 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail JAWS 2023.2311.34FF 115 Reading Image not ignored, and aria label read This is the aria-labelled, graphic
Fail JAWS 2023.2311.34Edge 120 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail JAWS 2022.2207.25Chrome 105 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail JAWS 2022.2207.25FF 102 Reading Image not ignored, and aria label read This is the aria-labelled, graphic
Fail JAWS 2022.2207.25Edge 105 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail JAWS 2021.2107.12Chrome 94 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail JAWS 2021.2107.12FF 91 Reading Image not ignored, and aria label read This is the aria-labelled, graphic
Fail JAWS 2021.2107.12Edge 94 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail JAWS 2020.2008.24Chrome 86 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail JAWS 2020.2008.24FF 78 Reading Image not ignored, and aria label read This is the aria-labelled, graphic
Fail JAWS 2020.2008.24Edge 92 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail JAWS 2019.1912.1Chrome 79 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail JAWS 2019.1912.1FF 68 Reading Image not ignored, and aria label read This is the aria-labelled, graphic
Fail JAWS 2019.1912.1IE11 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail JAWS 2018.1811.2Chrome 73 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail JAWS 2018.1811.2FF 60 Reading Image not ignored, and aria label read Graphic, this is the aria-labelledby
Fail JAWS 2018.1811.2IE11 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail JAWS 18.0.5038FF 52 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail JAWS 18.0.5038IE11 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail JAWS 17.0.2619FF 48 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail JAWS 17.0.2619IE11 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail JAWS 16.0.4350FF 42 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail JAWS 16.0.4350IE11 Reading Image ignored, and aria labelled by read if visible This is the aria-labelledby
Fail WindowEyes 9.2IE11 Reading Image not ignored, and aria label read This is the aria-labelledby
Fail VoiceOver macOS 13.6Safari 16.6 Reading Image ignored, aria labelled by not read
Fail VoiceOver macOS 12.5Safari 15.6 Reading Image ignored, aria labelled by not read
Fail VoiceOver macOS 11.5Safari 15.0 Reading Image ignored, aria labelled by not read
Fail VoiceOver macOS 10.15Safari 14.1 Reading Image ignored, aria labelled by not read
Fail VoiceOver macOS 10.14Safari 13.0 Reading Image not ignored, and aria label read This is the aria-labelled by, image
Fail VoiceOver macOS 10.13Safari 12.1 Reading Image not ignored, and aria label read This is the aria-labelled by, image
Fail VoiceOver macOS 10.12Safari 10.1.2 Reading Image not ignored, and aria label read This is the aria-labelled by, image
Fail VoiceOver macOS 10.11Safari 9.1.2 Reading Image not ignored, and aria label read This is the aria-labelled by, image
Fail VoiceOver macOS 10.10Safari 9.0.2 Reading Image not ignored, and aria label read This is the aria-labelled by, image
Fail VoiceOver iOS 16.6Safari iOS 16.6TouchImage ignored, aria labelled by not read
Fail VoiceOver iOS 15.6Safari iOS 15.6TouchImage ignored, aria labelled by not read
Fail VoiceOver iOS 14.7Safari iOS 14.7TouchImage ignored, aria labelled by not read
Fail VoiceOver iOS 13.3Safari iOS 13.3TouchImage not ignored, and aria label read This is the aria-labelled by, image
Fail VoiceOver iOS 12.4Safari iOS 12.4TouchImage not ignored, and aria label read This is the aria-labelled by, image
Fail VoiceOver iOS 11.4Safari iOS 11.4TouchImage not ignored, and aria label read This is the aria-labelled by, image
Fail VoiceOver iOS 10.3Safari iOS 10.3TouchImage not ignored, and aria label read This is the aria-labelled by, image
Fail VoiceOver iOS 9.2Safari iOS 9.2TouchImage not ignored, and aria label read This is the aria-labelled by, image
Fail Dolphin SR 15.05IE11 Reading Image ignored, and aria labelled by read if visible

SortSite rules: AccNullAltWithAccName

Test notes

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:

  • Reading Content read using the “read next” command in a screen reader
  • Tabbing Content read using the “tab” key in a screen reader
  • Heading Content read using the “next heading” key in a screen reader
  • Touch Content read when touching an area of screen on a mobile device

In the “What the user hears” column:

  • Commas represent short pauses in screen reader voicing
  • Full Stops represent places where voicing stops, and the “read next” or “tab” or “next heading” command is pressed again
  • Ellipsis … represent a long pause in voicing
  • (Brackets) represent voicing that requires a keystroke to hear