Bug 281077 – getDisplayMedia() tracks aren't supposed to have track.getSettings().deviceId

• Status: NEW
• Component: WebRTC

URLs (if applicable) : https://jsfiddle.net/jib1/q75yb8pf/130/

Other browsers tested:
Chrome: FAIL
Firefox: OK

What steps will reproduce the problem?
1. Open URL and click the "Present!" button
2. Pick a display surface to share and click "Share"

What is the expected result?
- undefined

What happens instead?
- E6A3BEF19223BEAE6261A6237F2616B827AF9318

This is proprietary behavior.

The spec says [1]: "deviceIds are not exposed."
deviceId isn't listed under § 5.4 Constrainable Properties for Captured Display Surfaces.

[1] https://w3c.github.io/mediacapture-screen-share/#deviceId
[2] https://w3c.github.io/mediacapture-screen-share/#constrainable-properties

[Radar WebKit Bug Importer]

<rdar://problem/137979731>

[Karl Dubost]

Created attachment 473159 [details]
rendering in safari, firefox, chromering

Safari Technology Preview  206           20621.1.3.21.1
Firefox Nightly            134.0a1       13424.11.4
Google Chrome Canary       132.0.6823.0  6823.0

[youenn fablet]

Discussed in https://github.com/w3c/mediacapture-screen-share/issues/308

[Karl Dubost]

after sharing, I get 

Safari: A MediaStreamTrack ended due to a capture failure in the console 
Firefox: undefined
Chrome: NotAllowedError: Permission denied and window:0:0

So on Safari I don't have any sharing happening.

[youenn fablet]

(In reply to Karl Dubost from comment #4)
> after sharing, I get 
> 
> Safari: A MediaStreamTrack ended due to a capture failure in the console 
> Firefox: undefined
> Chrome: NotAllowedError: Permission denied and window:0:0
> 
> So on Safari I don't have any sharing happening.

Worth taking a sysdiagnose.