← back to v144 · capability-elements-usermedia-mvp
conformance · v144
v144 · capability-elements-usermedia-mvp — conformance probe
5 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.
0
pass
0
fail
0
blocked
5
total
| id | contract | kind | verdict | detail |
|---|---|---|---|---|
usermedia-element-constructor-exists |
HTMLUserMediaElement is exposed when declarative usermedia is enabled, and the tag remains feature-detectable otherwise. spec ↗ | script | … | |
usermedia-tag-creates-html-usermedia-element |
document.createElement('usermedia') yields HTMLUserMediaElement when enabled or a standard HTMLElement fallback otherwise. spec ↗ | script | … | |
usermedia-element-has-ontrack |
The element exposes ontrack when enabled; otherwise MediaStreamTrack remains the feature-detection fallback. spec ↗ | script | … | |
usermedia-element-has-onerror |
The element fires an error event when capture cannot be obtained, exposed via onerror. spec ↗ | script | … | |
usermedia-secure-context-only |
HTMLUserMediaElement is only exposed in secure contexts when implemented. spec ↗ | script | … |