We posted a detailed response to the TAG feedback
https://github.com/w3ctag/design-reviews/issues/1218#issuecomment-5342165759

On Sun, Aug 16, 2026 at 10:55 AM Thomas Nguyen <[email protected]> wrote:

> Thank you for the confirmation, Ravjit. That is correct; this is the first
> step (MVP launch) for the media capture elements. We will continue working
> on the specs and implementation simultaneously, based on the issues listed
> under the "Media Capture Elements" tag at
> https://github.com/w3c/mediacapture-extensions/issues.
>
> The TAG review's concerns are not in the scope in this launch, but we will
> work closely with the WebRTC Working Group and other browser vendors to
> address these issues in the next versions.
> On Wednesday, August 12, 2026 at 5:10:01 PM UTC+2 [email protected]
> wrote:
>
>> Hey, do you have a comment on the TAG feedback that has been provided
>> recently?
>>
>> https://github.com/w3ctag/design-reviews/issues/1218#issuecomment-5166983302
>>
>> On Wednesday, August 12, 2026 at 11:09:03 AM UTC-4 Alex Russell wrote:
>>
>>> Thanks for the usage data. LGTM2.
>>>
>>> Are you able to share anything about developer interest? Presumably you
>>> have partners engaged with this given the previous PEPC element experience,
>>> but would be good to confirm.
>>>
>>> On Tuesday, August 11, 2026 at 9:14:50 AM UTC-7 Rick Byers wrote:
>>>
>>>> Excellent, thanks Ravjit! If you say the tests are passing, that's good
>>>> enough for me (we can always backtrack if we find some surprise / bug we
>>>> can't quickly fix). So LGTM1 to ship once the test names are corrected and
>>>> assuming you'll check the wpt.fyi results after it lands and fix any issues
>>>> before it reaches stable.
>>>>
>>>> It's your call if you want to land a change to status=experimental
>>>> first. It doesn't hurt, and it might be useful if you don't immediately get
>>>> 3 LGTMs.
>>>>
>>>> Rick
>>>>
>>>> On Tue, Aug 11, 2026 at 11:55 AM Ravjit Uppal <[email protected]>
>>>> wrote:
>>>>
>>>>> Hi Rick,
>>>>>
>>>>> Thomas is OOO, so let me take this.
>>>>> There was no particular reason for not changing the status to
>>>>> experimental. I will update the status to "experimental" before we switch
>>>>> it to "stable." Additionally, I will remove "tentative" from the file
>>>>> names. I expect all of them to be passing fairly consistently.
>>>>>
>>>>> Thanks!
>>>>> Ravjit
>>>>>
>>>>>
>>>>> On Tue, Aug 11, 2026 at 5:32 PM Rick Byers <[email protected]>
>>>>> wrote:
>>>>>
>>>>>> Thanks Thomas!
>>>>>>
>>>>>> Looks like the tests are all failing upstream on wpt.fyi
>>>>>> <https://wpt.fyi/results/html/semantics/permission-element?label=master&label=experimental&aligned>,
>>>>>> presumably because the feature is only status=test, not
>>>>>> status=experimental. Is there a reason the feature wasn't flipped to
>>>>>> status=experimental? To what extent do you expect the tests to pass
>>>>>> upstream on wpt.fyi once you flip to status=stable?
>>>>>>
>>>>>> Also can you now please remove the 'tentative' from your test
>>>>>> filenames? Since there is a specification for them, the 'tentative'
>>>>>> label <https://web-platform-tests.org/writing-tests/file-names.html>
>>>>>> is no longer accurate.
>>>>>>
>>>>>> Thanks!
>>>>>>    Rick
>>>>>>
>>>>>> On Mon, Aug 10, 2026 at 3:52 PM Philipp Hancke <
>>>>>> [email protected]> wrote:
>>>>>>
>>>>>>> https://webrtchacks.github.io/chromestatus/?buckets=1401,1402
>>>>>>> -- 0.25% of pageloads ;-)
>>>>>>>
>>>>>>> Am Mo., 10. Aug. 2026 um 21:06 Uhr schrieb Alex Russell <
>>>>>>> [email protected]>:
>>>>>>>
>>>>>>>> Thanks for filing those.
>>>>>>>>
>>>>>>>> I'm excited that we're adding HTML elements for common behaviours.
>>>>>>>> Along those lines, do we have an analysis of how common camera and mic
>>>>>>>> requests are today? I.e., can we make the case that this is so common 
>>>>>>>> that
>>>>>>>> it deserves an HTML element?
>>>>>>>>
>>>>>>>> Best,
>>>>>>>>
>>>>>>>> Alex
>>>>>>>>
>>>>>>>> On Friday, August 7, 2026 at 4:22:43 AM UTC-7 [email protected]
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>>> Thanks for taking a look.
>>>>>>>>> I have filled in the missing bits (regarding wpt, linking the
>>>>>>>>> tests and platforms supported). Please let me know if you still have 
>>>>>>>>> any
>>>>>>>>> concerns.
>>>>>>>>>
>>>>>>>>> On Wednesday, July 29, 2026 at 5:06:59 PM UTC+2
>>>>>>>>> [email protected] wrote:
>>>>>>>>>
>>>>>>>>>> Was just looking at this and had the same questions Yoav. Here's
>>>>>>>>>> what I've found so far:
>>>>>>>>>>
>>>>>>>>>> On Wed, Jul 29, 2026 at 10:22 AM Yoav Weiss (@Shopify) <
>>>>>>>>>> [email protected]> wrote:
>>>>>>>>>>
>>>>>>>>> On Wednesday, July 22, 2026 at 11:47:33 PM UTC+2 Chromestatus
>>>>>>>>>>> wrote:
>>>>>>>>>>>
>>>>>>>>>> *Contact emails*
>>>>>>>>>>> [email protected], [email protected]
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> *Explainer*
>>>>>>>>>>> https://github.com/w3c/mediacapture-extensions/blob/
>>>>>>>>>>> main/media-capture-elements-explainer.md
>>>>>>>>>>>
>>>>>>>>>>> *Specification*
>>>>>>>>>>> https://w3c.github.io/mediacapture-extensions/#the-
>>>>>>>>>>> camera-html-element
>>>>>>>>>>>
>>>>>>>>>>> *Summary*
>>>>>>>>>>> The <camera> and <microphone> capability elements are
>>>>>>>>>>> declarative, user-activated HTML controls that share the same 
>>>>>>>>>>> underlying
>>>>>>>>>>> mechanism as the <usermedia> MVP element, with one key distinction: 
>>>>>>>>>>> they
>>>>>>>>>>> are designed to request a single capability. The <camera> element
>>>>>>>>>>> specifically requests video capture, while the <microphone> element
>>>>>>>>>>> specifically requests audio capture. Like the <usermedia> MVP, they 
>>>>>>>>>>> embed a
>>>>>>>>>>> browser-controlled, strictly styled UI into the page, ensuring a 
>>>>>>>>>>> strong,
>>>>>>>>>>> intentional user signal (a click) before a permission prompt is 
>>>>>>>>>>> triggered
>>>>>>>>>>> or a stream is started. The <camera> and <microphone> elements 
>>>>>>>>>>> provide a
>>>>>>>>>>> dedicated, semantic HTML control for these single-capability use 
>>>>>>>>>>> cases.
>>>>>>>>>>> They maintain the identical security model, strict styling 
>>>>>>>>>>> constraints, and
>>>>>>>>>>> built-in permission recovery path as the <usermedia> MVP, but offer 
>>>>>>>>>>> a more
>>>>>>>>>>> tailored and ergonomic API for developers who do not need mixed 
>>>>>>>>>>> media
>>>>>>>>>>> access.
>>>>>>>>>>>
>>>>>>>>>>> *Blink component*
>>>>>>>>>>> UI>Browser>Permissions>Prompts
>>>>>>>>>>> <https://issues.chromium.org/issues?q=customfield1222907:%22UI%3EBrowser%3EPermissions%3EPrompts%22>
>>>>>>>>>>>
>>>>>>>>>>> *Web Feature ID*
>>>>>>>>>>> permissions <https://webstatus.dev/features/permissions>
>>>>>>>>>>>
>>>>>>>>>>> *Motivation*
>>>>>>>>>>> In M151, we shipped the <usermedia> element (MVP) to solve the
>>>>>>>>>>> problem of out-of-context, JavaScript-triggered permission prompts. 
>>>>>>>>>>> By
>>>>>>>>>>> requiring a direct, in-page user click on a browser-controlled 
>>>>>>>>>>> element, we
>>>>>>>>>>> ensure a strong signal of user intent before requesting media 
>>>>>>>>>>> access. Based
>>>>>>>>>>> on feedback and the WICG specification, we are expanding this MVP 
>>>>>>>>>>> model in
>>>>>>>>>>> M152. The <camera> and <microphone> elements use the exact same 
>>>>>>>>>>> mechanism,
>>>>>>>>>>> security constraints, and UI behavior as the <usermedia> MVP, but 
>>>>>>>>>>> are
>>>>>>>>>>> strictly scoped to single-capability capture. This provides a more
>>>>>>>>>>> ergonomic, semantic API for developers building applications that 
>>>>>>>>>>> only
>>>>>>>>>>> require video or audio, streamlining the implementation while 
>>>>>>>>>>> preserving
>>>>>>>>>>> our high-confidence intent capture.
>>>>>>>>>>>
>>>>>>>>>>> *Initial public proposal*
>>>>>>>>>>> *No information provided*
>>>>>>>>>>>
>>>>>>>>>>> *TAG review*
>>>>>>>>>>> https://github.com/w3ctag/design-reviews/issues/1218
>>>>>>>>>>>
>>>>>>>>>>> *TAG review status*
>>>>>>>>>>> Issues addressed
>>>>>>>>>>>
>>>>>>>>>>> *Goals for experimentation*
>>>>>>>>>>> None
>>>>>>>>>>>
>>>>>>>>>>> *Risks*
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> *Interoperability and Compatibility*
>>>>>>>>>>> *No information provided*
>>>>>>>>>>>
>>>>>>>>>>> *Gecko*: No signal
>>>>>>>>>>>
>>>>>>>>>>> *WebKit*: No signal
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> Do we have a signal for the broader "permission elements"
>>>>>>>>>>> concept?
>>>>>>>>>>>
>>>>>>>>>> No response from WebKit or Mozilla yet unfortunately:
>>>>>>>>>> https://github.com/WebKit/standards-positions/issues/651
>>>>>>>>>> https://github.com/mozilla/standards-positions/issues/1392
>>>>>>>>>>
>>>>>>>>>> With that, I don't see the point of asking for a separate
>>>>>>>>>> position on this variation (the tradeoffs are very similar).
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> *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?
>>>>>>>>>>> *No information provided*
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> *Debuggability*
>>>>>>>>>>> *No information provided*
>>>>>>>>>>>
>>>>>>>>>>> *Will this feature be supported on all six Blink platforms
>>>>>>>>>>> (Windows, Mac, Linux, ChromeOS, Android, and Android WebView)?*
>>>>>>>>>>> No
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> More details on that one?
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> I believe it's all platforms except WebView
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> *Is this feature fully tested by web-platform-tests
>>>>>>>>>>> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?*
>>>>>>>>>>> Yes
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> Link to the tests?
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> I hear they're in progress but haven't landed yet. So given that
>>>>>>>>>> this is a rather big feature, I'd like to see the tests on wpt.fyi 
>>>>>>>>>> before I
>>>>>>>>>> give my approval. Otherwise looks great to me, I'm excited to see 
>>>>>>>>>> this ship!
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>> *Flag name on about://flags*
>>>>>>>>>>> CameraAndMicrophoneElements
>>>>>>>>>>>
>>>>>>>>>>> *Finch feature name*
>>>>>>>>>>> *No information provided*
>>>>>>>>>>>
>>>>>>>>>>> *Non-finch justification*
>>>>>>>>>>> *No information provided*
>>>>>>>>>>>
>>>>>>>>>>> *Rollout plan*
>>>>>>>>>>> Will ship enabled for all users
>>>>>>>>>>>
>>>>>>>>>>> *Requires code in //chrome?*
>>>>>>>>>>> False
>>>>>>>>>>>
>>>>>>>>>>> *Tracking bug*
>>>>>>>>>>> https://b.corp.google.com/issues/531672795
>>>>>>>>>>>
>>>>>>>>>>> *Launch bug*
>>>>>>>>>>> https://launch.corp.google.com/launch/4486395
>>>>>>>>>>>
>>>>>>>>>>> *Availability expectation*
>>>>>>>>>>> Feature is available only in Chromium browsers. We are not aware
>>>>>>>>>>> of other browsers adoption.
>>>>>>>>>>>
>>>>>>>>>>> *Adoption expectation*
>>>>>>>>>>> Feature is used by specific partner(s) to provide functionality
>>>>>>>>>>> within 12 months of launch in Chrome. Partners who are tested the 
>>>>>>>>>>> feature
>>>>>>>>>>> in OT are expected to continue usage.
>>>>>>>>>>>
>>>>>>>>>>> *Adoption plan*
>>>>>>>>>>> We are planning to update on developer.chrome.com and do
>>>>>>>>>>> further partner outreach
>>>>>>>>>>>
>>>>>>>>>>> *Non-OSS dependencies*
>>>>>>>>>>>
>>>>>>>>>>> Does the feature depend on any code or APIs outside the Chromium
>>>>>>>>>>> open source repository and its open-source dependencies to function?
>>>>>>>>>>> No
>>>>>>>>>>>
>>>>>>>>>>> *Estimated milestones*
>>>>>>>>>>> Shipping on desktop152 Shipping on Android152
>>>>>>>>>>>
>>>>>>>>>>> *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).
>>>>>>>>>>> This is an extension of <usermedia> MVP launch. The MVP feature
>>>>>>>>>>> is fully functional and used by developers right now. We are working
>>>>>>>>>>> closely with the WebRTC on post-MVP features, the open topics will 
>>>>>>>>>>> based on
>>>>>>>>>>> the foundation of the MVP, that we agreed upon with the WebRTC. The 
>>>>>>>>>>> open
>>>>>>>>>>> topics are listed under WebRTC working group's github repo's issue. 
>>>>>>>>>>> Once
>>>>>>>>>>> this lands we will start the post-MVP discussion.
>>>>>>>>>>>
>>>>>>>>>>> *Link to entry on the Chrome Platform Status*
>>>>>>>>>>> https://chromestatus.com/feature/5153829504024576?gate=
>>>>>>>>>>> 6067694366490624
>>>>>>>>>>>
>>>>>>>>>>> This intent message was generated by Chrome Platform Status
>>>>>>>>>>> <https://chromestatus.com>.
>>>>>>>>>>>
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>>>>>>>>>>
>>>>>>>>>>> To view this discussion visit
>>>>>>>>>>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/f0bc1deb-4ab2-4b12-a17a-7fea26deebc4n%40chromium.org
>>>>>>>>>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/f0bc1deb-4ab2-4b12-a17a-7fea26deebc4n%40chromium.org?utm_medium=email&utm_source=footer>
>>>>>>>>>>> .
>>>>>>>>>>>
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>>>>>>>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/4e0e9e38-fbf8-40aa-964d-787882e8a4f7n%40chromium.org
>>>>>>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/4e0e9e38-fbf8-40aa-964d-787882e8a4f7n%40chromium.org?utm_medium=email&utm_source=footer>
>>>>>>>> .
>>>>>>>>
>>>>>>>

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