iframe where src is a PNG image Screen reader compatibility

Expected Result: causes problems in some screen readers

Actual Result: causes problems in 14 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:

		<iframe title='This is frame title' src='1234.png' width='400' height='100'> </iframe>
	

Change History

Last updated: September 11, 2022

• NVDA with Chrome Causes problems in NVDA 2022.2
• NVDA with FF Causes problems in NVDA 2022.2
• JAWS with Chrome Causes problems in JAWS 2022.2207.25
• JAWS with FF Causes problems in JAWS 2022.2207.25
• VoiceOver macOS Better - caused problems in VoiceOver macOS 10.14, but now OK in VoiceOver macOS 12.5
• VoiceOver iOS Causes problems in VoiceOver iOS 15.6

Screen reader	Browser	Mode	Notes	What the user hears
NVDA 2022.2	Chrome 105	Reading	Unlabeled graphic has no accessible name.	This is frame title frame, unlabeled graphic, to get missing descriptions open the context menu.
NVDA 2022.2	Chrome 105	Tabbing	Complete silence when tabbing to frame.
NVDA 2022.2	FF102	Reading	Graphic has no accessible name.	This is frame title frame, graphic clickable, one thousand two hundred and thirty-four dot PNG.
NVDA 2022.2	FF102	Tabbing	Complete silence when tabbing to frame.
NVDA 2022.2	Edge 105	Reading	Unlabeled graphic has no accessible name.	This is frame title frame, unlabeled graphic, to get missing descriptions open the context menu.
NVDA 2022.2	Edge 105	Tabbing	Complete silence when tabbing to frame.
JAWS 2022.2207.25	Chrome 105	Reading	Unlabeled graphic has no accessible name.	To get missing descriptions open the context menu, unlabeled graphic.
JAWS 2022.2207.25	Chrome 105	Tabbing	Unlabeled graphic has no accessible name.	This is frame title frame. This is frame title, unlabeled graphic.
JAWS 2022.2207.25	FF102	Reading	Graphic has no accessible name.	Twelve thirty-four PNG graphic.
JAWS 2022.2207.25	FF102	Tabbing	Graphic has no accessible name.	This is frame title frame. This is frame title, graphic.
JAWS 2022.2207.25	Edge 105	Reading	Unlabeled graphic has no accessible name.	To get missing descriptions open the context menu, unlabeled graphic.
JAWS 2022.2207.25	Edge 105	Tabbing	Unlabeled graphic has no accessible name.	This is frame title frame. This is frame title, unlabeled graphic.
VoiceOver macOS 12.5	Safari 15.6	Reading		This is frame title, frame
VoiceOver macOS 12.5	Safari 15.6	Tabbing	Skipped by tabbing as expected.
VoiceOver macOS 10.14	Safari 13.0	Reading	Confusing interaction and filename voiced for non-text content.	This is frame title, frame. No visible title to interact. One thousand two hundred and thirty four PNG, image.
VoiceOver iOS 15.6	Safari iOS 15.6	Touch	URL read instead of image description, along with OCR text from image.	One thousand two hundred and thirty-four PNG, image, logo other, test image.

SortSite rules: AccHtmlFrameIsNonText

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