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conformance · v148

v148 · lazy-loading-for-video-and-audio-elements — 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.

browser: spec: https://github.com/whatwg/html/pull/11980 chromestatus: #5200068565139456 generated 2026-06-01T08:14:38Z by conformance-author-v1-subagent
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id contract kind verdict detail
video-loading-attribute-reflects HTMLVideoElement reflects the loading attribute as a string. spec ↗ script
audio-loading-attribute-reflects HTMLAudioElement reflects the loading attribute as a string. spec ↗ script
video-loading-eager-default Default loading state for video is the empty string (mapped to eager / auto). script
video-loading-invalid-falls-back Setting loading to an invalid value reflects either an empty string or the original (no throw). script
video-element-exists HTMLVideoElement is exposed on the global. exists