Hint allowing Web applications to instruct the browser whether, upon calling getDisplayMedia(), the current tab should be excluded from the list of tabs offered to the user.
The current tab is the surface most under an attacker’s control. Nudging the user away from this risky surface is a good thing. Of course, malicious applications can avoid using this new control, or use it to retain the old behavior (current tab still offered). This is not a problem - it simply means that this new surface offers no degradation in security, although not a security feature in its own right.
N/A
N/A
Supported on all platforms that support getDisplayMedia. Namely, all desktop platforms.
No milestones specified
Contact emails
elad...@chromium.orgExplainer
https://docs.google.com/document/d/1M63lyDHV-v6LPFzHjfsjBDMfyn075pySa3xfIRSB9zU/edit?usp=sharingSpecification
https://github.com/w3c/mediacapture-screen-share/pull/216/filesSummary
Hint allowing Web applications to instruct the browser whether, upon calling getDisplayMedia(), the current tab should be excluded from the list of tabs offered to the user.
Blink component
BlinkTAG review
N/A. This is just an addition of a single flag to an existing dictionary, following well-known patterns.TAG review status
Not applicableRisks
Interoperability and Compatibility
Gecko: Positive (https://github.com/mozilla/standards-positions/issues/639) Jan-Ivar Bruaroey from Mozilla, and Youenn Fablet from Apple, have both collaborated with us closely in shaping this PR. They have then approved merging this PR into w3c/mediacapture-screen-share. This is implicit support, so I'd consider it POSITIVE even though, as of the time of this writing, the official request for position has not yet been answered.
WebKit: Positive (https://lists.webkit.org/pipermail/webkit-dev/2022-May/032249.html) Jan-Ivar Bruaroey from Mozilla, and Youenn Fablet from Apple, have both collaborated with us closely in shaping this PR. They have then approved merging this PR into w3c/mediacapture-screen-share. This is implicit support, so I'd consider it POSITIVE even though, as of the time of this writing, the official request for position has not yet been answered.
Web developers: Positive Interest expressed by Google Meet.
Similar to other intents, this doesn't count as an official positive signal. Let's wait a few days to see if one emerges.
Any external signals from developers? https://goo.gle/developer-signals
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LGTM3
/Daniel
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LGTM2
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