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deviceId in permissions.query() is unimplemented fingerprinting surface #965

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jan-ivar opened this issue Jul 17, 2023 · 1 comment · Fixed by #968 or w3c/mediacapture-output#139
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deviceId in permissions.query() is unimplemented fingerprinting surface #965

jan-ivar opened this issue Jul 17, 2023 · 1 comment · Fixed by #968 or w3c/mediacapture-output#139

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@jan-ivar
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jan-ivar commented Jul 17, 2023 •
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This spec's Permissions Integration section extends the permission spec's PermissionDescriptor with the deviceId member, for "camera", "microphone", and "speaker-selection" permissions.

The idea was for JS to query permissions of individual media devices, which is only useful on browsers that implement per-device permissions, currently Firefox. Mozilla, however, won't be implementing it over fingerprinting concerns that would extend beyond those of other browsers.

There are currently zero implementations, one (manual) WPT, and AFAIK no implementations planned.

I propose we remove this API (the deviceId part of permissions.query) from this spec and mediacapture-output.
@jan-ivar jan-ivar changed the title deviceId in permissions.query({name: "camera" | "microphone}) deviceId in permissions.query() is a huge fingerprinting surface. Jul 17, 2023
@jan-ivar jan-ivar changed the title deviceId in permissions.query() is a huge fingerprinting surface. deviceId in permissions.query() remains unimplemented & is a fingerprinting surface Jul 17, 2023
@jan-ivar jan-ivar changed the title deviceId in permissions.query() remains unimplemented & is a fingerprinting surface deviceId in permissions.query() is unimplemented fingerprinting surface Jul 17, 2023
@jan-ivar jan-ivar mentioned this issue Jul 27, 2023
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@dontcallmedom-bot
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This issue was discussed in WebRTC July 2023 meeting – (deviceId in permissions.query())

@jan-ivar jan-ivar mentioned this issue Aug 21, 2023
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@jan-ivar @dontcallmedom-bot