Intent to Prototype: ARIA virtual content

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Benjamin Beaudry

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Jan 26, 2021, 6:34:03 PMJan 26
to blin...@chromium.org

Contact emails

benjamin...@microsoft.comkbab...@microsoft.com


Explainer


https://github.com/WICG/accessible-loading-and-searching-of-content/blob/master/explainer.md


Specification

None


Summary

Implement the aria-virtualcontent attribute. This attribute will allow web developers to signal to assistive technologies (ATs) that more content will be revealed if the user scrolls the page.




Blink component

Blink>Accessibility


Motivation

The purpose of aria-virtualcontent is to enable screen readers to experiment with solutions to make virtualized content accessible. Without this, an "infinite feed" - such as Twitter's that loads more new content every time the user scrolls to the bottom of the page - is poorly accessible. The content loaded once we reach the bottom of the page - called virtualized content - remains mostly inaccessible for assistive technology users. Web developers currently don't have a clear way to avoid this problem - thus this proposal.




Initial public proposal

None


TAG review

None


TAG review status

Pending


Risks




Interoperability and Compatibility

None



Gecko: No signal

Edge: No signal

WebKit: No signal

Web developers: Mixed signals




Is this feature fully tested by web-platform-tests?

No


Tracking bug

https://crbug.com/1168723


Link to entry on the Chrome Platform Status

https://chromestatus.com/feature/5665065770418176

This intent message was generated by Chrome Platform Status.


Thomas Steiner

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Jan 27, 2021, 5:25:36 AMJan 27
to Benjamin Beaudry, blin...@chromium.org
Hi Benjamin,
 

Web developers: Mixed signals


Since above you wrote "Web developers currently don't have a clear way to avoid this problem" I'm surprised to learn that there are "mixed" signals from developers. Could you link to them? To me, having a means of communicating to users of assistive technology that more virtualized content is coming sounds essential. 

Cheers,
Tom

PS: For context, I have recently proposed a formalization of the developers signal. 

Benjamin Beaudry

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Jan 27, 2021, 12:02:20 PMJan 27
to to...@google.com, blin...@chromium.org
Hi Thomas,


I agree with you that we need a way to overcome this accessibility constraint - it's also the general sentiment of the community. The concerns expressed in the link above are about the specifics of the proposed solution rather than the solution itself.

Cheers,
Ben

From: Thomas Steiner <to...@google.com>
Sent: Wednesday, January 27, 2021 5:25 AM
To: Benjamin Beaudry <Benjamin...@microsoft.com>
Cc: blin...@chromium.org <blin...@chromium.org>
Subject: [EXTERNAL] Re: [blink-dev] Intent to Prototype: ARIA virtual content
 
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