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iframe where src is a PNG image Screen reader compatibility

HTML
Nov 26, 2024

Expected Result: causes problems in some screen readers

Actual Result: causes problems in 40 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: November 26, 2024

  • Bad NVDA with Chrome Causes problems from NVDA 2022.2 to NVDA 2024.4
  • Bad NVDA with FF Causes problems from NVDA 2022.2 to NVDA 2024.4
  • Bad JAWS with Chrome Causes problems from JAWS 2022.2207.25 to JAWS 2024.2409.2
  • Bad JAWS with FF Causes problems from JAWS 2022.2207.25 to JAWS 2024.2409.2
  • Better VoiceOver macOS Better - caused problems in VoiceOver macOS 10.14, but now OK in VoiceOver macOS 14.6
  • Bad VoiceOver iOS Causes problems from VoiceOver iOS 15.6 to VoiceOver iOS 17.7
Screen readerBrowserModeNotesWhat the user hears
Fail NVDA 2024.4Chrome 131 Reading Unlabeled graphic has no accessible name. This is frame title frame, unlabeled graphic, to get missing descriptions open the context menu.
Fail NVDA 2024.4Chrome 131 Tabbing Complete silence when tabbing to frame.
Fail NVDA 2024.4FF 128 Reading Graphic has no accessible name. This is frame title frame, graphic clickable, one thousand two hundred and thirty-four dot PNG.
Fail NVDA 2024.4FF 128 Tabbing Complete silence when tabbing to frame.
Fail NVDA 2024.4Edge 131 Reading Unlabeled graphic has no accessible name. This is frame title frame, unlabeled graphic, to get missing descriptions open the context menu.
Fail NVDA 2024.4Edge 131 Tabbing Complete silence when tabbing to frame.
Fail NVDA 2023.3Chrome 120 Reading Unlabeled graphic has no accessible name. This is frame title frame, unlabeled graphic, to get missing descriptions open the context menu.
Fail NVDA 2023.3Chrome 120 Tabbing Complete silence when tabbing to frame.
Fail NVDA 2023.3FF 115 Reading Graphic has no accessible name. This is frame title frame, graphic clickable, one thousand two hundred and thirty-four dot PNG.
Fail NVDA 2023.3FF 115 Tabbing Complete silence when tabbing to frame.
Fail NVDA 2023.3Edge 120 Reading Unlabeled graphic has no accessible name. This is frame title frame, unlabeled graphic, to get missing descriptions open the context menu.
Fail NVDA 2023.3Edge 120 Tabbing Complete silence when tabbing to frame.
Fail NVDA 2022.2Chrome 105 Reading Unlabeled graphic has no accessible name. This is frame title frame, unlabeled graphic, to get missing descriptions open the context menu.
Fail NVDA 2022.2Chrome 105 Tabbing Complete silence when tabbing to frame.
Fail NVDA 2022.2FF 102 Reading Graphic has no accessible name. This is frame title frame, graphic clickable, one thousand two hundred and thirty-four dot PNG.
Fail NVDA 2022.2FF 102 Tabbing Complete silence when tabbing to frame.
Fail NVDA 2022.2Edge 105 Reading Unlabeled graphic has no accessible name. This is frame title frame, unlabeled graphic, to get missing descriptions open the context menu.
Fail NVDA 2022.2Edge 105 Tabbing Complete silence when tabbing to frame.
Fail JAWS 2024.2409.2Chrome 131 Reading Unlabeled graphic has no accessible name. To get missing descriptions open the context menu, unlabeled graphic.
Fail JAWS 2024.2409.2Chrome 131 Tabbing Unlabeled graphic has no accessible name. This is frame title frame, to get missing descriptions open the context menu, unlabeled graphic.
Fail JAWS 2024.2409.2FF 128 Reading Graphic has no accessible name. Twelve thirty-four dot PNG graphic.
Fail JAWS 2024.2409.2FF 128 Tabbing Graphic has no accessible name. This is frame title frame. Twelve thirty-four PNG graphic.
Fail JAWS 2024.2409.2Edge 131 Reading Unlabeled graphic has no accessible name. To get missing descriptions open the context menu, unlabeled graphic.
Fail JAWS 2024.2409.2Edge 131 Tabbing Unlabeled graphic has no accessible name. This is frame title frame, to get missing descriptions open the context menu, unlabeled graphic.
Fail JAWS 2023.2311.34Chrome 120 Reading Unlabeled graphic has no accessible name. To get missing descriptions open the context menu, unlabeled graphic.
Fail JAWS 2023.2311.34Chrome 120 Tabbing Unlabeled graphic has no accessible name. This is frame title frame, to get missing descriptions open the context menu, unlabeled graphic.
Fail JAWS 2023.2311.34FF 115 Reading Graphic has no accessible name. Twelve thirty-four PNG graphic.
Fail JAWS 2023.2311.34FF 115 Tabbing Graphic has no accessible name. This is frame title frame. Twelve thirty-four PNG graphic.
Fail JAWS 2023.2311.34Edge 120 Reading Unlabeled graphic has no accessible name. To get missing descriptions open the context menu, unlabeled graphic.
Fail JAWS 2023.2311.34Edge 120 Tabbing Unlabeled graphic has no accessible name. This is frame title frame, to get missing descriptions open the context menu, unlabeled graphic.
Fail JAWS 2022.2207.25Chrome 105 Reading Unlabeled graphic has no accessible name. To get missing descriptions open the context menu, unlabeled graphic.
Fail JAWS 2022.2207.25Chrome 105 Tabbing Unlabeled graphic has no accessible name. This is frame title frame. This is frame title, unlabeled graphic.
Fail JAWS 2022.2207.25FF 102 Reading Graphic has no accessible name. Twelve thirty-four PNG graphic.
Fail JAWS 2022.2207.25FF 102 Tabbing Graphic has no accessible name. This is frame title frame. This is frame title, graphic.
Fail JAWS 2022.2207.25Edge 105 Reading Unlabeled graphic has no accessible name. To get missing descriptions open the context menu, unlabeled graphic.
Fail JAWS 2022.2207.25Edge 105 Tabbing Unlabeled graphic has no accessible name. This is frame title frame. This is frame title, unlabeled graphic.
OK VoiceOver macOS 14.6Safari 17.6 Reading This is frame title, frame
OK VoiceOver macOS 14.6Safari 17.6 Tabbing Skipped by tabbing as expected.
OK VoiceOver macOS 13.6Safari 16.6 Reading This is frame title, frame
OK VoiceOver macOS 13.6Safari 16.6 Tabbing Skipped by tabbing as expected.
OK VoiceOver macOS 12.5Safari 15.6 Reading This is frame title, frame
OK VoiceOver macOS 12.5Safari 15.6 Tabbing Skipped by tabbing as expected.
Fail VoiceOver macOS 10.14Safari 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.
Fail VoiceOver iOS 17.7Safari iOS 17.7TouchURL read instead of image description, along with OCR text from image. One thousand two hundred and thirty-four PNG, image.
Fail VoiceOver iOS 16.6Safari iOS 16.6TouchURL read instead of image description, along with OCR text from image. One thousand two hundred and thirty-four PNG, image, test image.
Fail VoiceOver iOS 15.6Safari iOS 15.6TouchURL 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