{"json_modified": "2016-03-28T08:45:33.382575", "uuid": "d5dc6048-f105-4ce3-8eba-7e4aa331d6a9", "title": "closed", "url": "/en-US/docs/Web/API/MediaKeySession/closed", "tags": ["API", "NeedsExample", "MediaKeySession", "Reference", "closed", "Property", "Experimental", "EncryptedMediaExtensions"], "translations": [], "modified": "2015-12-29T02:33:06", "label": "closed", "localization_tags": [], "locale": "en-US", "id": 152961, "last_edit": "2015-12-29T02:33:03", "summary": "The <code>MediaKeySession.closed</code> read-only property returns a <a href=\"/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise\" title=\"The Promise object is used for deferred and asynchronous computations. A Promise represents an operation that hasn't completed yet, but is expected in the future.\"><code>Promise</code></a> signaling when a <a href=\"/en-US/docs/Web/API/MediaKeySession\" title=\"The MediaKeySession interface of the EncryptedMediaExtensions API represents a&#xA0;context for message exchange with a content decryption module (CDM).\"><code>MediaKeySession</code></a> closes. This promise can only be fulfilled and is never rejected. Closing a session means that licenses and keys associated with it are no longer valid for decrypting media data.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}], "slug": "Web/API/MediaKeySession/closed", "review_tags": ["technical"]}