My thoughts on those questions:

  1.  AriaWG requires at least one implementation and one commitment to 
implement before any spec change can be merged, see: 
process.md<https://github.com/w3c/aria/blob/main/documentation/process.md#stage-four-merged>.
 This spec PR is on the agenda for tomorrow’s meeting, if it were approved and 
we got positive signals from (2) (but no commitment) how would you feel about 
moving forward?
  2.  I’m actively engaging with them in the Mozilla standards positions 
issue<https://github.com/mozilla/standards-positions/issues/1049>, I think the 
latest iteration of the spec and explainer will alleviate the concerns they had 
with the older versions of the API.

Please let me know if you have any other questions, concerns, or feedback!
-Jacques

From: Chris Harrelson <chris...@chromium.org>
Sent: Wednesday, July 23, 2025 8:35 AM
To: Daniel Bratell <bratel...@gmail.com>
Cc: Jacques Newman <jacques.new...@microsoft.com>; blink-dev@chromium.org
Subject: [EXTERNAL] Re: [blink-dev] Intent to Ship: ARIA Notify API

Hi,

Two questions:

1. The spec PR is still open, I'd like that to be finished before shipping.

2. The Mozilla position references an incomplete design, but those comments 
seem old and have been superseded by more recent discussion on the issue. My 
assumption is that once (1) is finished, the position will likely move to 
positive?

On Wed, Jul 23, 2025 at 8:12 AM Daniel Bratell 
<bratel...@gmail.com<mailto:bratel...@gmail.com>> wrote:

LGTM1

/Daniel
On 2025-07-23 00:00, 'Jacques Newman' via blink-dev wrote:

Contact emails

alma...@microsoft.com<mailto:alma...@microsoft.com>, 
janew...@microsoft.com<mailto:janew...@microsoft.com>, 
leo...@microsoft.com<mailto:leo...@microsoft.com>

Explainer

https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/Accessibility/AriaNotify/explainer.md

Specification

https://github.com/w3c/aria/pull/2577

Design docs

https://docs.google.com/document/d/1tFT-4_sDvgnZoS8AYEcQquXzqAYaoB53DBH0C2T5rMk

Summary

ariaNotify provides a JavaScript API that enables content authors to directly 
tell a screen reader what to read. ariaNotify improves reliability and 
developer control compared to ARIA live regions, allowing for announcing 
changes not tied to DOM updates. This enables more consistent and ergonomic 
accessibility experiences across dynamic web applications. Iframe usage of this 
feature can be controlled via a permission policy "aria-notify".



Blink component

Blink>Accessibility<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EAccessibility%22>

TAG review

https://github.com/w3ctag/design-reviews/issues/1075

TAG review status

Issues addressed

Risks



Interoperability and Compatibility


Gecko: Defer (https://github.com/mozilla/standards-positions/issues/1049)

WebKit: No signal (https://github.com/WebKit/standards-positions/issues/370)

Web developers: Positive (https://github.com/w3c/aria/issues/832) Blog post 
asking for the feature: 
https://www.nicchan.me/blog/please-can-we-have-aria-notify/
See section after the I2S template for more web developer verbatim feedback.
Other signals:

WebView application risks

Does this intent deprecate or change behavior of existing APIs, such that it 
has potentially high risk for Android WebView-based applications?

None



Debuggability

I have verified that devtools autocomplete works as expected when the feature 
flag is enabled.



Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, 
ChromeOS, Android, and Android WebView)?

No

This API requires platform specific APIs to communicate the notification to 
screen readers, and this has not yet been implemented in ChromeOS.



Is this feature fully tested by 
web-platform-tests<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?

No

Web platform tests do not currently have the ability to monitor 
platform-specific accessibility APIs, [Acacia 
AAM](https://github.com/Igalia/rfcs/blob/wpt-for-aams-rfc/rfcs/wpt-for-aams.md) 
will close this gap and allow for testing of such features within WPT



Flag name on about://flags



Finch feature name

AriaNotify

Rollout plan

Will ship enabled for all users

Requires code in //chrome?

False

Tracking bug

https://issues.chromium.org/issues/326277796

Estimated milestones

Shipping on desktop

140

Shipping on Android

140



Anticipated spec changes

Open questions about a feature may be a source of future web compat or interop 
issues. Please list open issues (e.g. links to known github issues in the 
project for the feature specification) whose resolution may introduce web 
compat/interop risk (e.g., changing to naming or structure of the API in a 
non-backward-compatible way).

All open spec issues can be resolved with backwards compatible additions. 
Recent conversations in the tag review showcase what an backwards-compatible 
extension might look like and the Mozilla standards position thread go over all 
of the open issues and how they can be resolved in the future in a 
backwards-compatible way. Open Issues link: 
https://github.com/w3c/aria/issues?q=is%3Aissue+is%3Aopen+%5BAriaNotify%5D

Link to entry on the Chrome Platform Status

https://chromestatus.com/feature/5745430754230272?gate=5410577665490944

Links to previous Intent discussions

Intent to Prototype: 
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CH2PR00MB0680B14C1978202FF59CF7D3F2239%40CH2PR00MB0680.namprd00.prod.outlook.com

This intent message was generated by Chrome Platform 
Status<https://chromestatus.com/>.



Quotes from Web Developers:



>From Steve at Desmos, a graphing calculator web application:

“We are enthusiastic about integrating the new ariaNotify() API into our suite 
of Desmos tools. Across our platform—including in our customized fork of the 
open-source MathQuill equation editor, our graph sonification feature known as 
Audio Trace, and interactive geometry construction tools—we frequently provide 
screen reader users with real-time feedback via custom spoken messages. 
Historically, we have implemented these notifications by updating hidden 
document fragments with aria-live attributes. While this approach has served us 
reasonably well, it has a significant limitation that has long remained 
unresolved: screen readers will not re-announce the same message, even if the 
user explicitly requests it.
This presents a notable usability issue. For example, if a user types the same 
digit repeatedly, navigates through a list of identical elements, or invokes a 
command to re-speak the most recent message, screen readers often remain 
silent. In minor cases, this forces users to take indirect actions just to hear 
the content again, while in more severe instances, it creates confusion or the 
appearance of a software defect beyond our control.



The ariaNotify() API represents a promising and long-overdue improvement. 
Assuming timely and consistent adoption by browser and assistive technology 
vendors, this new mechanism will allow us to reliably deliver repeated 
announcements when appropriate—eliminating the need for fragile workarounds and 
improving the overall accessibility and responsiveness of our tools.”

-Steve



>From Sarah Higley on Fluent, a framework developed by Microsoft:

"We have already implemented ariaNotify in Fluent on browsers where it is 
supported, in lieu of our DOM-based notification utility. The ariaNotify 
implementation gives us a more robust announcement utility in several key 
aspects:

It works even when a modal dialog is open on the page

Managing multiple notifications in succession is more robust across platforms

It requires significantly less code, testing, maintenance, and edge case 
handling from our side.

Debugging live region announcements consistently accounts for a 
disproportionate amount of debugging effort and bugs especially from our 
partner teams, and transitioning more and more towards only supporting the 
ariaNotify implementation would be a big time saver for us, and deliver a more 
robust experience to our users.”

-Sarah Higley

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