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conformance · v149

v149 · capability-elements-usermedia-mvp — conformance probe

6 assertions drawn from the spec. Each is a single contract the spec text makes. Pass/fail reflects what this browser executed; blocked means the contract was not run because it needs user mediation, hardware, or another unavailable precondition. Open the page in Chrome stable / canary / Firefox / Safari to compare.

browser: spec: https://wicg.github.io/PEPC/permission-elements.html chromestatus: #4926233538330624 generated 2026-06-01T08:15:14Z by conformance-author-v1-subagent
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pass
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fail
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id contract kind verdict detail
usermedia-element-not-htmlunknown <usermedia> parses into a non-HTMLUnknownElement (declarative capability element). spec ↗ script
permission-element-not-htmlunknown <permission type='camera microphone'> parses into a non-HTMLUnknownElement. spec ↗ script
permissions-api-exists navigator.permissions is present (the in-page state surface paired with the element). spec ↗ exists
permissions-query-is-function navigator.permissions.query is a callable function. typeof
getusermedia-still-supported navigator.mediaDevices.getUserMedia remains available as the imperative counterpart. spec ↗ script
streamready-event-attribute The <usermedia> element supports onstreamready as a content attribute event handler slot. spec ↗ script