LGTM1

On Thursday, August 14, 2025 at 1:43:48 PM UTC-7 Chromestatus wrote:

> Contact emails pcho...@google.com 
>
> Explainer 
> https://github.com/WICG/WebApiDevice/blob/main/DeviceAttributesPermissionsPolicyExplainer.md
>  
>
> Specification 
> https://github.com/WICG/WebApiDevice/blob/main/DeviceAttributesPermissionsPolicyExplainer.md
>  
>
> Summary 
>
> The new Permissions Policy enables restricting access to the Device 
> Attributes API, which is available only for policy-installed kiosk web apps 
> and policy-installed Isolated Web Apps, both only on managed ChromeOS 
> devices. Additionally, the feature is controlled by content settings. 2 new 
> policies are introduced: DeviceAttributesBlockedForOrigins and 
> DefaultDeviceAttributesSetting, to complement the introduced earlier 
> DeviceAttributesAllowedForOrigins. The feature is enabled by default for 
> the supported scenarios described above.
>
>
> Blink component Blink>Managed 
> <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EManaged%22>
>  
>
> TAG review TAG declined to review the original implementation of Device 
> Attributes API, and this is an incremental change to it. 
>
> TAG review status Not applicable 
>
> Risks 
>
>
> Interoperability and Compatibility 
>
> The Isolated Web Apps that used the Device Attributes API will now need to 
> declare the usage of the API in the permissions_policy section in the 
> manifest. The API launched only in ChromeOS Kiosk mode and there are no 
> known IWAs using the API though.
>
>
> *Gecko*: No signal 
>
> *WebKit*: No signal 
>
> *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?
>
> The API which the feature is related to is not available in WebView. It is 
> available only for policy installed web applications on managed ChromeOS 
> devices.
>
>
> Debuggability 
>
> The Device Attributes API can be called from the DevTools console. This 
> feature changes the availability of the API, so either a result of the call 
> or an error can be seen from DevTools.
>
>
> Will this feature be supported on all six Blink platforms (Windows, Mac, 
> Linux, ChromeOS, Android, and Android WebView)? No 
>
> The Device Attributes API is available only on ChromeOS, so this feature 
> is supported on ChromeOS only as well.
>
>
> 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 None 
>
> Finch feature name DeviceAttributesPermissionPolicy 
>
> Rollout plan Will ship enabled for all users 
>
> Requires code in //chrome? True 
>
> Availability expectation Feature is available only in ChromeOS browsers 
> for the foreseeable future. 
>
> Adoption expectation Feature will be used by Web App developers for Kiosk 
> and other managed apps, especially Virtual Desktop Infrastructure clients 
> on ChromeOS as a part of migration from ChromeApps to Isolated Web Apps and 
> PWAs within 12 months of launch in Chrome. 
>
> Adoption plan The already existing setting for kiosk applications in 
> Google Admin Console will be moved to Content Settings. It'll also enable 
> using the API in managed Isolated Web Apps, as opposed to current support 
> for Kiosk mode PWAs. 
>
> 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?
> Yes. Policy for managed devices is used to control apps that can access 
> this API. For example, after the launch 
> navigator.managed.getAnnotatedAssetId will be defined for 'trusted' origins 
> (kiosk or force-installed Isolated Web Apps), but it will return an error 
> if origin is blocked in 'DeviceAttributesBlockedForOrigins' policy. 
>
> Estimated milestones 
> Shipping on desktop 141 
> DevTrial on desktop 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).
> Spec was changed in the following pull request 
> https://github.com/WICG/WebApiDevice/pull/27 
>
> Link to entry on the Chrome Platform Status 
> https://chromestatus.com/feature/4843520522977280?gate=5129685195030528 
>
> Links to previous Intent discussions Intent to Prototype: 
> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/684c1f97.170a0220.aedbe.04cd.GAE%40google.com
>  
> Ready for Trial: 
> https://groups.google.com/a/chromium.org/g/blink-dev/c/O0sTtPbIJzY 
>
>
> This intent message was generated by Chrome Platform Status 
> <https://chromestatus.com>. 
>

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