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conformance · v137

v137 · pause-media-playback-on-not-rendered-iframes — 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/iframe-media-pausing/ chromestatus: #5082950457884672 generated 2026-06-01T09:35:00Z by conformance-author-v1-subagent
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id contract kind verdict detail
htmlmediaelement-exists HTMLMediaElement is the interface whose play/pause behavior changes when an iframe stops being rendered. spec ↗ exists
htmlmediaelement-pause-method HTMLMediaElement.prototype.pause runs the internal pause steps; the spec triggers these when the iframe is hidden. spec ↗ script
htmlmediaelement-play-returns-promise HTMLMediaElement.prototype.play returns a Promise that rejects with NotAllowedError when the iframe is not rendered. spec ↗ script
audiocontext-has-interrupted-state AudioContext.state can take the value 'interrupted' when the iframe is not rendered. spec ↗ script
permissions-policy-accessible The document exposes a featurePolicy/permissionsPolicy object the spec uses to gate the 'media-playback-while-not-visible' token. spec ↗ script
iframe-element-exists HTMLIFrameElement is the host element whose rendering state drives the pause trigger. spec ↗ exists