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

My understanding is that this has to be "No" because getDisplayMedia is not 
supported on all platforms, but can you confirm it will ship everywhere 
that getDisplayMedia is supported?

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

I get that there will be limitations about how effectively this can be 
tested in a WPT, but would it make sense to add some basic checks that the 
feature is supported?
suppressLocalAudioPlayback seems kind of similar and I see there are a 
couple tests for that at 
https://github.com/web-platform-tests/wpt/blob/6ef3efe286a2b4bd5f32e5e529d044be12db1347/screen-capture/getdisplaymedia.https.html#L237.

Thanks,
Dan

On Monday, July 21, 2025 at 1:02:22 AM UTC-7 Chromestatus wrote:

> Contact emails brand...@google.com 
>
> Explainer 
> https://github.com/guidou/mediacapture-screen-share/blob/gh-pages/explainer-restrictOwnAudio.md
>  
>
> Specification https://www.w3.org/TR/screen-capture/#dfn-restrictownaudio 
>
> Summary 
>
> restrictOwnAudio is a captured display surfaces constrainable property. 
> This constrainable property changes the behavior of system audio in a 
> captured display surface. The restrictOwnAudio constraint will only have an 
> effect if the captured display surface inherently includes system audio; 
> otherwise, it will have no impact. By default, when system audio is 
> captured, it includes all audio played out by the system on audio output 
> devices. When restrictOwnAudio is enabled, the captured system audio will 
> be filtered to exclude audio originating from the document that performed 
> getDisplayMedia. The restrictOwnAudio constraint allows for cleaner screen 
> recordings for some use cases. Without it, if the capturing web page itself 
> is playing audio (e.g. a video embedded on the on the recording page), that 
> audio would be included in the capture. This could lead to an undesirable 
> echo or interfere with the intended audio sources from other tabs or 
> applications. The restrictOwnAudio constrainable property is described in 
> the specification. 
> https://www.w3.org/TR/screen-capture/#dfn-restrictownaudio
>
>
> Blink component Blink>GetDisplayMedia 
> <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EGetDisplayMedia%22>
>  
>
> TAG review https://github.com/w3ctag/design-reviews/issues/1109 
>
> TAG review status Issues addressed 
>
> Risks 
>
>
> Interoperability and Compatibility 
>
> None
>
>
> *Gecko*: No signal (
> https://github.com/mozilla/standards-positions/issues/1244) This has been 
> part of the spec for a long time, which has consensus among all major 
> browser vendors. 
>
> *WebKit*: No signal (
> https://github.com/WebKit/standards-positions/issues/511) This has been 
> part of the spec for a long time, which has consensus among all major 
> browser vendors. 
>
> *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 RestrictOwnAudio 
>
> Rollout plan Will ship enabled for all users 
>
> Requires code in //chrome? False 
>
> Adoption expectation Feature is used by specific partner(s) to provide 
> functionality within 12 months of launch in Chrome. 
>
> Estimated milestones 
> Shipping on desktop 140 
> Shipping on Android 140 
> Shipping on WebView 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).
> None 
>
> Link to entry on the Chrome Platform Status 
> https://chromestatus.com/feature/5128140732760064?gate=5969936572481536 
>
> Links to previous Intent discussions Intent to Prototype: 
> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6830541c.170a0220.2aa17e.1583.GAE%40google.com
>  
>
>
> This intent message was generated by Chrome Platform Status 
> <https://chromestatus.com>. 
>

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