[webkit-dev] Request for a position on the Idle Detection API

Simon Fraser simon.fraser at apple.com
Wed Oct 28 19:32:27 PDT 2020

Can you describe what a permission prompt would look like that allows the user to make an informed decision about whether they should allow or deny the permission?


> On Oct 28, 2020, at 4:56 PM, Reilly Grant <reillyg at google.com> wrote:
> Greetings WebKit engineers,
> I would like to request an official position from the WebKit team on the emerging Idle Detection API <http://wicg.github.io/idle-detection> specification. I am aware that this API was included in a list of APIs <https://webkit.org/tracking-prevention/> which you have decided not to implement due to fingerprinting concerns. I assume that this objection was based on the original explainer provided for this API. Since that list was posted the API has been extended to include a permission that sites must acquire before being granted access to user presence signals. I would like to start a conversation to understand the fingerprinting risks you foresee from this API.
> Reilly Grant
> Software Engineer
> reillyg at google.com <mailto:reillyg at google.com>
> Google Chrome
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