button containing img with null alt Screen reader compatibility

Expected Result: causes problems in some screen readers

Actual Result: causes problems in 135 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.

Code used for this test:

		<button><img src='1234.png' alt=''></button>
	

Change History

Last updated: September 11, 2022

• NVDA with Chrome Causes problems from NVDA 2018.4 to NVDA 2022.2
• NVDA with IE Causes problems from NVDA 2014.1 to NVDA 2019.2
• NVDA with FF Causes problems from NVDA 2014.1 to NVDA 2022.2
• JAWS with Chrome Causes problems from JAWS 2018.1811.2 to JAWS 2022.2207.25
• JAWS with IE Causes problems from JAWS 13.0.852 to JAWS 2019.1912.1
• JAWS with FF Causes problems from JAWS 13.0.852 to JAWS 2022.2207.25
• VoiceOver macOS Causes problems from VoiceOver macOS 10.9 to VoiceOver macOS 12.5
• VoiceOver iOS Causes problems from VoiceOver iOS 7.1 to VoiceOver iOS 15.6
• WindowEyes with IE Causes problems from WindowEyes 8.4 to WindowEyes 9.2
• Dolphin with IE Causes problems in Dolphin SR 15.05
• SaToGo with IE Causes problems in SaToGo 3.4.96.0

Screen reader	Browser	Mode	Notes	What the user hears
NVDA 2022.2	Chrome 105	Reading	Reads "button" without saying what button does.	Button
NVDA 2022.2	Chrome 105	Tabbing	Reads "unlabeled button" without saying what button does.	Unlabeled graphic, button
NVDA 2022.2	FF102	Reading	Reads "button" without saying what button does.	Button
NVDA 2022.2	FF102	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2022.2	Edge 105	Reading	Reads "button" without saying what button does.	Button
NVDA 2022.2	Edge 105	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2021.2	Chrome 94	Reading	Reads "button" without saying what button does.	Button
NVDA 2021.2	Chrome 94	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2021.2	FF91	Reading	Reads "button" without saying what button does.	Button
NVDA 2021.2	FF91	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2021.2	Edge 94	Reading	Reads "button" without saying what button does.	Button
NVDA 2021.2	Edge 94	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2020.2	Chrome 86	Reading	Reads "button" without saying what button does.	Button
NVDA 2020.2	Chrome 86	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2020.2	FF78	Reading	Reads "button" without saying what button does.	Button
NVDA 2020.2	FF78	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2020.2	Edge 92	Reading	Reads "button" without saying what button does.	Button
NVDA 2020.2	Edge 92	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2019.2	Chrome 79	Reading	Reads "button" without saying what button does.	Button
NVDA 2019.2	Chrome 79	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2019.2	FF68	Reading	Reads "button" without saying what button does.	Button
NVDA 2019.2	FF68	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2019.2	IE11	Reading	Reads "button" without saying what button does.	Button
NVDA 2019.2	IE11	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2018.4	Chrome 73	Reading	Reads "button" without saying what button does.	Button
NVDA 2018.4	Chrome 73	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2018.4	FF60	Reading	Reads "button" without saying what button does.	Button
NVDA 2018.4	FF60	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2018.4	IE11	Reading	Reads "button" without saying what button does.	Button
NVDA 2018.4	IE11	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2017.3	FF60	Reading	Reads "button" without saying what button does.	Button
NVDA 2017.3	FF60	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2017.3	IE11	Reading	Reads "button" without saying what button does.	Button
NVDA 2017.3	IE11	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2016.2	FF48	Reading	Reads "button" without saying what button does.	Button
NVDA 2016.2	FF48	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2016.2	IE11	Reading	Reads "button" without saying what button does.	Button
NVDA 2016.2	IE11	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2015.2	FF40	Reading	Reads "button" without saying what button does.	Button
NVDA 2015.2	FF40	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2015.2	IE11	Reading	Reads "button" without saying what button does.	Button
NVDA 2015.2	IE11	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2014.1	FF28	Reading	Reads "button" without saying what button does.	Button
NVDA 2014.1	FF28	Tabbing	Reads "button" without saying what button does.	Button
NVDA 2014.1	IE11	Reading	Reads "button" without saying what button does.	Button
NVDA 2014.1	IE11	Tabbing	Reads "button" without saying what button does.	Button
JAWS 2022.2207.25	Chrome 105	Reading	Reads "unlabeled button" without saying what button does.	Unlabeled one button
JAWS 2022.2207.25	Chrome 105	Tabbing	Reads "unlabeled button" without saying what button does.	Unlabeled one button, to activate press enter
JAWS 2022.2207.25	FF102	Reading	Reads "unlabeled button" without saying what button does.	Unlabeled four button
JAWS 2022.2207.25	FF102	Tabbing	Reads "unlabeled button" without saying what button does.	Unlabeled four button, to activate press enter
JAWS 2022.2207.25	Edge 105	Reading	Reads "unlabeled button" without saying what button does.	Unlabeled one button
JAWS 2022.2207.25	Edge 105	Tabbing	Reads "unlabeled button" without saying what button does.	Unlabeled one button, to activate press enter
JAWS 2021.2107.12	Chrome 94	Reading	Reads "unlabeled button" without saying what button does.	Unlabeled one button
JAWS 2021.2107.12	Chrome 94	Tabbing	Reads "unlabeled button" without saying what button does.	Unlabeled one button, to activate press enter
JAWS 2021.2107.12	FF91	Reading	Reads "unlabeled button" without saying what button does.	Unlabeled four button
JAWS 2021.2107.12	FF91	Tabbing	Reads "button" without saying what button does.	Button, to activate press space bar
JAWS 2021.2107.12	Edge 94	Reading	Reads "unlabeled button" without saying what button does.	Unlabeled one button
JAWS 2021.2107.12	Edge 94	Tabbing	Reads "unlabeled button" without saying what button does.	Unlabeled one button, to activate press enter
JAWS 2020.2008.24	Chrome 86	Reading	Reads "unlabeled button" without saying what button does.	Unlabeled one button
JAWS 2020.2008.24	Chrome 86	Tabbing	Reads "unlabeled button" without saying what button does.	Unlabeled one button, to activate press enter
JAWS 2020.2008.24	FF78	Reading	Reads "unlabeled button" without saying what button does.	Unlabeled four button
JAWS 2020.2008.24	FF78	Tabbing	Reads "unlabeled button" without saying what button does.	Unlabeled four button, to activate press enter
JAWS 2020.2008.24	Edge 92	Reading	Reads "unlabeled button" without saying what button does.	Unlabeled one button
JAWS 2020.2008.24	Edge 92	Tabbing	Reads "unlabeled button" without saying what button does.	Unlabeled one button, to activate press enter
JAWS 2019.1912.1	Chrome 79	Reading	Reads "unlabeled button" without saying what button does.	Unlabeled one button
JAWS 2019.1912.1	Chrome 79	Tabbing	Reads "unlabeled button" without saying what button does.	Unlabeled one button, to activate press space bar
JAWS 2019.1912.1	FF68	Reading	Reads "unlabeled button" without saying what button does.	Unlabeled four button
JAWS 2019.1912.1	FF68	Tabbing	Reads "unlabeled button" without saying what button does.	Unlabeled four button, to activate press space bar
JAWS 2019.1912.1	IE11	Reading	Reads "unlabeled zero button" without saying what button does.	Unlabeled zero button
JAWS 2019.1912.1	IE11	Tabbing	Reads "unlabeled zero button" without saying what button does.	Unlabeled zero button, to activate press space bar
JAWS 2018.1811.2	Chrome 73	Reading	Reads "unlabeled button" without saying what button does.	Unlabeled one button
JAWS 2018.1811.2	Chrome 73	Tabbing	Reads "unlabeled button" without saying what button does.	Tab, unlabeled one button
JAWS 2018.1811.2	FF60	Reading	Reads "unlabeled button" without saying what button does.	Unlabeled four button
JAWS 2018.1811.2	FF60	Tabbing	Reads "unlabeled button" without saying what button does.	Tab, unlabeled four button
JAWS 2018.1811.2	IE11	Reading	Reads "unlabeled zero button" without saying what button does.	Unlabeled zero button
JAWS 2018.1811.2	IE11	Tabbing	Reads "unlabeled zero button" without saying what button does.	Tab, unlabeled zero button
JAWS 18.0.5038	FF52	Reading	Reads "unlabeled button" without saying what button does.	Unlabeled four button
JAWS 18.0.5038	FF52	Tabbing	Reads "unlabeled button" without saying what button does.	Tab, unlabeled four button
JAWS 18.0.5038	IE11	Reading	Reads "unlabeled zero button" without saying what button does.	Unlabeled zero button
JAWS 18.0.5038	IE11	Tabbing	Reads "unlabeled zero button" without saying what button does.	Tab, unlabeled zero button
JAWS 17.0.2619	FF48	Reading	Reads "unlabeled one button" without saying what button does.	Unlabeled one button
JAWS 17.0.2619	FF48	Tabbing	Reads "unlabeled one button" without saying what button does.	Tab, unlabeled one button
JAWS 17.0.2619	IE11	Reading	Reads "unlabeled zero button" without saying what button does.	Unlabeled zero button
JAWS 17.0.2619	IE11	Tabbing	Reads "unlabeled zero button" without saying what button does.	Unlabeled zero button
JAWS 16.0.4350	FF40	Reading	Reads "unlabeled one button" without saying what button does.	Unlabeled one button
JAWS 16.0.4350	FF40	Tabbing	Reads "unlabeled one button" without saying what button does.	Tab, unlabeled one button
JAWS 16.0.4350	IE11	Reading	Reads "unlabeled zero button" without saying what button does.	Unlabeled zero button
JAWS 16.0.4350	IE11	Tabbing	Reads "unlabeled zero button" without saying what button does.	Unlabeled zero button
JAWS 15.0.9023	FF29	Reading	Reads "unlabeled one button" without saying what button does.	Unlabeled one button
JAWS 15.0.9023	FF29	Tabbing	Reads "unlabeled one button" without saying what button does.	Unlabeled one button
JAWS 15.0.9023	IE11	Reading	Reads "unlabeled zero button" without saying what button does.	Unlabeled zero button
JAWS 15.0.9023	IE11	Tabbing	Reads "unlabeled zero button" without saying what button does.	Unlabeled zero button
JAWS 14.0.9002	FF29	Reading	Reads "unlabeled one button" without saying what button does.	Unlabeled one button
JAWS 14.0.9002	FF29	Tabbing	Reads "unlabeled one button" without saying what button does.	Unlabeled one button
JAWS 14.0.9002	IE11	Reading	Reads "unlabeled zero button" without saying what button does.	Unlabeled zero button
JAWS 14.0.9002	IE11	Tabbing	Reads "unlabeled zero button" without saying what button does.	Unlabeled zero button
JAWS 13.0.852	FF29	Reading	Reads "unlabeled one button" without saying what button does.	Unlabeled one button
JAWS 13.0.852	FF29	Tabbing	Reads "unlabeled one button" without saying what button does.	Unlabeled one button
JAWS 13.0.852	IE11	Reading	Reads "unlabeled zero button" without saying what button does.	Unlabeled zero button
JAWS 13.0.852	IE11	Tabbing	Reads "unlabeled zero button" without saying what button does.	Unlabeled zero button
WindowEyes 9.2	IE11	Reading	Reads "submit button" without saying what button does.	Submit button
WindowEyes 9.2	IE11	Tabbing	Reads "submit button" without saying what button does.	Submit button
WindowEyes 8.4	IE11	Reading	Reads "button" without saying what button does.	Button
WindowEyes 8.4	IE11	Tabbing	Reads image filename gibberish, which doesn't indicate what button does.	Twelve thirty four button
VoiceOver macOS 12.5	Safari 15.6	Reading	Reads "button" without saying what button does.	Button
VoiceOver macOS 12.5	Safari 15.6	Tabbing	Reads "button" without saying what button does.	Button
VoiceOver macOS 11.5	Safari 15.0	Reading	Reads "button" without saying what button does.	Button
VoiceOver macOS 11.5	Safari 15.0	Tabbing	Reads "button" without saying what button does.	Button
VoiceOver macOS 10.15	Safari 14.1	Reading	Reads "button" without saying what button does.	Button
VoiceOver macOS 10.15	Safari 14.1	Tabbing	Reads "button" without saying what button does.	Button
VoiceOver macOS 10.14	Safari 13.0	Reading	Reads "button" without saying what button does.	Button
VoiceOver macOS 10.14	Safari 13.0	Tabbing	Reads "button" without saying what button does.	Button
VoiceOver macOS 10.13	Safari 12.1	Reading	Reads "button" without saying what button does.	Button
VoiceOver macOS 10.13	Safari 12.1	Tabbing	Reads "button" without saying what button does.	Button
VoiceOver macOS 10.12	Safari 10.1.2	Reading	Reads "button" without saying what button does.	Button
VoiceOver macOS 10.12	Safari 10.1.2	Tabbing	Reads "button" without saying what button does.	Button
VoiceOver macOS 10.11	Safari 9.1.2	Reading	Reads "button" without saying what button does.	Button
VoiceOver macOS 10.11	Safari 9.1.2	Tabbing	Reads "button" without saying what button does.	Button
VoiceOver macOS 10.10	Safari 8.0.6	Reading	Reads "button" without saying what button does.	Button
VoiceOver macOS 10.10	Safari 8.0.6	Tabbing	Reads "button" without saying what button does.	Button
VoiceOver macOS 10.9	Safari 7.0.3	Reading	Reads "button" without saying what button does.	Button
VoiceOver macOS 10.9	Safari 7.0.3	Tabbing	Reads "button" without saying what button does.	Button
VoiceOver iOS 15.6	Safari iOS 15.6	Touch	Reads "button" without saying what button does.	Button
VoiceOver iOS 14.7	Safari iOS 14.7	Touch	Reads "button" without saying what button does.	Button
VoiceOver iOS 13.3	Safari iOS 13.3	Touch	Reads "button" without saying what button does.	Button
VoiceOver iOS 12.4	Safari iOS 12.4	Touch	Reads "button" without saying what button does.	Button
VoiceOver iOS 11.4	Safari iOS 11.4	Touch	Reads "button" without saying what button does.	Button
VoiceOver iOS 10.3	Safari iOS 10.3	Touch	Reads "button" without saying what button does.	Button
VoiceOver iOS 9.1	Safari iOS 9.1	Touch	Reads "button" without saying what button does.	Button
VoiceOver iOS 8.4	Safari iOS 8.4	Touch	Reads "button" without saying what button does.	Button
VoiceOver iOS 7.1	Safari iOS 7.1	Touch	Reads "button" without saying what button does.	Button
Dolphin SR 15.05	IE11	Reading	Nothing indicates what button does	Button
Dolphin SR 15.05	IE11	Tabbing	Nothing indicates what button does	Button
SaToGo 3.4.96.0	IE11	Reading	Nothing indicates what button does	Button, button
SaToGo 3.4.96.0	IE11	Tabbing	Nothing indicates what button does	Button

SortSite rules: AccButtonImgNoAccName

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