Could you please comment on any progress made in the following areas
<https://www.chromium.org/blink/launching-features/#origin-trials>,
since the first OT?
* Draft spec (early draft is ok, but must be spec-like and associated
with the appropriate standardization venue, or WICG)
* TAG review (seeexceptions
<https://www.chromium.org/blink/launching-features/wide-review/#exceptions>)
* signals
<https://www.chromium.org/blink/launching-features/wide-review>requests
* Outreach for feedback from the spec community
* WPT tests
On 1/31/25 7:41 AM, Chromestatus wrote:
Contact emails
andypa...@google.com, pjmclach...@google.com, eng...@google.com,
eri...@google.com
Explainer
https://github.com/andypaicu/PEPC/blob/main/explainer.md
Specification
https://wicg.github.io/PEPC/permission-element.html
Summary
Provide a new HTML element that interacts with the permission flow.
The permission prompt is currently triggered directly from JS without
the user agent having any strong signal of the user's intent. Having
an in-content element that the user uses to trigger the permission
flow allows for improved permission prompt UX for users as well as a
recovery path from the "denied" permission state for sites. Explainer:
https://github.com/WICG/PEPC/blob/main/explainer.md Instructions:
https://github.com/WICG/PEPC/blob/main/HOWTO.md
Blink component
UI>Browser>Permissions>Prompts
<https://issues.chromium.org/issues?q=customfield1222907:%22UI>Browser>Permissions>Prompts%22>
TAG review
None
TAG review status
Pending
Origin Trial Name
Page-embedded Permission Control (Camera/Mic)
Chromium Trial Name
PermissionElement
Origin Trial documentation link
https://github.com/WICG/PEPC/blob/main/explainer.md
WebFeature UseCounter name
kHTMLPermissionElement
Risks
Interoperability and Compatibility
There is a risk that this feature fails to be adopted by other
browsers. This can be mitigated by polyfilling some of the
functionality to ensure the feature is not completely broken in
non-implementing browsers.
/Gecko/: No signal
/WebKit/: No signal
/Web developers/: No signals
/Other signals/:
Ergonomics
This feature will likely be used in tandem with the Permissions API
(https://www.w3.org/TR/permissions/) which is already supported. The
Permissions API runs async. No foreseen ergonomics risks.
Activation
A polyfill can help developers use this feature without risking broken
functionality on non-supporting browsers.
Security
https://github.com/WICG/PEPC/blob/main/explainer.md#Security
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
Goals for experimentation
Reason this experiment is being extended
The OT originally spans from 126-131, we would like to extend it
starting from 132-134 (inclusive), as there is new functionality being
added to the existing trial to support the addition of support for
geolocation permission (<permission type=”geolocation”>), as well as
to give additional partners chances to experiment with the existing
<permission> element OT support for camera & mic permission types. The
new functionality will not be ready for OT until the stable release of
132.
Reason this experiment is being extended
PEPC is being introduced on Android as well in M134 and we wish to
allow developers time to experiment with the feature on a mobile
platform where the overall UX can be quite different and users
interact with certain permissions differently. Additionally there are
still open questions around the markup of the element and whether it
should be a void element vs allowing contents, and we would like to
further explore options in this space before committing to one
particular solution.
Ongoing technical constraints
None
Debuggability
None
Will this feature be supported on all six Blink platforms
(Windows, Mac, Linux, ChromeOS, Android, and Android WebView)?
No
The Permission Element is not supported on Android WebView as it
permission manager support to actually function and the WebView
permission manager defers most permission decisions to the embedder.
Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?
Yes
Partial WPT: https://wpt.fyi/results/html/semantics/permission-element
DevTrial instructions
https://github.com/WICG/PEPC/blob/main/HOWTO.md
Flag name on about://flags
None
Finch feature name
PermissionElement
Requires code in //chrome?
True
Estimated milestones
Origin trial desktop first 126
Origin trial desktop last 131
Origin trial extension 1 end milestone 134
Origin trial extension 2 end milestone 137
DevTrial on desktop 121
Origin trial Android first 134
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5125006551416832?gate=5156063554568192
Links to previous Intent discussions
Intent to Prototype:
https://groups.google.com/a/chromium.org/g/blink-dev/c/TGsrhP4ref0/m/bHFj3id9AgAJ?utm_medium=email&utm_source=footer
<https://groups.google.com/a/chromium.org/g/blink-dev/c/TGsrhP4ref0/m/bHFj3id9AgAJ?utm_medium=email&utm_source=footer>
Ready for Trial:
https://groups.google.com/a/chromium.org/g/blink-dev/c/D-mE5qIlkWY
Intent to Experiment:
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFuQ4YuA5Fskj1QyrzL%2BXpZdQGe_vCu-wQjgqqhDwazC0Rr4FA%40mail.gmail.com
Intent to Extend Experiment 1:
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CALTCLq7M2xaMvR4xFUk29gAsLLUcmWBFqgKhwQfADrf%3DmniNHg%40mail.gmail.com
This intent message was generated by Chrome Platform Status
<https://chromestatus.com>.
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