Contact [email protected]

Explainerhttps://github.com/w3c/encrypted-media/issues/473

Specification
https://w3c.github.io/encrypted-media/#dom-mediakeysessionclosedreason
<https://github.com/w3c/encrypted-media/pull/487>

Summary

A MediaKeySessionClosedReason is proposed to indicate the reason for EME
MediaKeySession closure, and the closed attribute would return a
Promise<MediaKeySessionClosedReason> instead of the current Promise<void>.

Blink componentInternals>Media>Encrypted
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Internals%3EMedia%3EEncrypted>

TAG review
According to the "intent to prototype" discussion the TAG review shouldn't
be necessary for this small change. It's still requested though at
https://github.com/w3ctag/design-reviews/issues/671 just in case.

TAG review statusNot applicable

Risks

Interoperability and Compatibility



Gecko: "non-harmful and lack of further comments
<https://github.com/mozilla/standards-positions/issues/537>" on the Request
for Position.

WebKit:  Support in W3C Media Working Group meeting
<https://lists.w3.org/Archives/Public/public-media-wg/2020Sep/0004.html>.
No response on the Request for Position
<https://lists.webkit.org/pipermail/webkit-dev/2021-June/031880.html>.

Web developers: Supported and approved
<https://github.com/w3c/encrypted-media/pull/487> by Netflix's spec editor.


Debuggability

No DevTools changes are required, treated like any other attribute/enum.

Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md>
?Yes (media/encrypted-media/encrypted-media-session-closed-event.html)

Flag nameEncryptedMediaSessionClosedReason (see CL
<https://chromium-review.googlesource.com/c/chromium/src/+/2937451>)

Requires code in //chrome?False

Tracking bughttps://crbug.com/1208618

Launch bughttps://crbug.com/1208618

Estimated milestonesM96

Link to entry on the Chrome Platform Status
https://www.chromestatus.com/feature/5632124143009792

Links to previous Intent discussionsIntent to prototype:
https://groups.google.com/a/chromium.org/g/blink-dev/c/Vze-UnN9d3w


This intent message was generated by Chrome Platform Status
<https://www.chromestatus.com/>.

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