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conformance · v151
v151 · capability-elements-usermedia-mvp — conformance probe
3 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.
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pass
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| id | contract | kind | verdict | detail |
|---|---|---|---|---|
htmlusermediaelement-interface-exposed |
The <usermedia> Capability Element exposes the HTMLUserMediaElement interface object (gated on the UserMediaElement runtime flag). Chromium's own migration guide feature-detects support by checking for this interface. spec ↗ | typeof | … | |
usermedia-tag-upgrades-to-interface |
A <usermedia> element upgrades to an HTMLUserMediaElement instance (rather than HTMLUnknownElement) when the capability element is supported. spec ↗ | script | … | |
usermedia-supersedes-permission-element |
The <usermedia> Capability Element is the successor to the legacy <permission> element (HTMLPermissionElement); getUserMedia() remains the underlying capture entry point it declaratively brokers. spec ↗ | typeof | … |