Hi Alex,

Thanks for the feedback. I've updated the explainer to move a code example 
to the beginning of the proposal and have also added examples for the 
considered alternatives.

Best,
Johannes

On Monday, August 18, 2025 at 8:19:28 PM UTC+2 Alex Russell wrote:

Not a vote either way, but we generally expect to see example code (rather 
than IDL) when introducing a proposed solution in an Explainer, and also it 
is generally good form to add example code for considered alternatives.

Best,

Alex

On Wednesday, August 13, 2025 at 4:33:26 AM UTC-7 Chromestatus wrote:

Contact emails k...@chromium.org, o...@chromium.org, elada...@chromium.org 

Explainer https://github.com/drkron/explainers/blob/main/windowAudio_
Explainer.md 

Specification https://w3c.github.io/mediacapture-screen-share/#displaymedi
astreamoptions 

Summary 

Extends DisplayMediaStreamOptions for getDisplayMedia() with a windowAudio 
option. This new option allows web applications to hint to the user agent 
whether the user should be offered the ability to share audio when a window 
is selected. windowAudio can be set to exclude, system, or window based on 
application preference. A web application that is configured for audio 
capture but wants to limit system audio capture when a window is selected 
should set windowAudio: "exclude".


Blink component Blink>GetDisplayMedia 
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EGetDisplayMedia%22>
 

TAG review https://github.com/w3ctag/design-reviews/issues/1110 

TAG review status Issues addressed 

Risks 


Interoperability and Compatibility 

None


*Gecko*: No signal (https://github.com/mozilla/st
andards-positions/issues/1254) 

*WebKit*: No signal (https://github.com/WebKit/sta
ndards-positions/issues/516) 

*Web developers*: No signals 

*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 

None


Will this feature be supported on all six Blink platforms (Windows, Mac, 
Linux, ChromeOS, Android, and Android WebView)? No 

Is this feature fully tested by web-platform-tests 
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
? No 

Flag name on about://flags N/A 

Finch feature name GetDisplayMediaWindowAudioCapture 

Rollout plan Will ship enabled for all users 

Requires code in //chrome? False 

Launch bug https://launch.corp.google.com/launch/4406027 

Adoption expectation Feature is used by specific partner(s) to provide 
functionality within 12 months of launch in Chrome. 

Estimated milestones Shipping on desktop 141 

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).
None 

Link to entry on the Chrome Platform Status https://chromestatus.com/featu
re/5072779506089984?gate=5202913928151040 

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

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