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conformance · v157

v157 · object-fit-and-object-position-apply-to-svg-documents-in-object-and-embed — conformance probe

4 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://html.spec.whatwg.org/multipage/rendering.html#embedded-content-rendering-rules chromestatus: #4886345347629056 generated 2026-09-23T21:40:00Z by claude-opus-5-v157-build
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pass
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fail
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blocked
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id contract kind verdict detail
css-supports-object-fit-cover CSS.supports('object-fit', 'cover') recognizes the object-fit property. spec ↗ script …
css-supports-object-position-percentage CSS.supports('object-position', '80% 20%') recognizes percentage object-position coordinates. spec ↗ script …
computed-style-applies-to-object-and-embed getComputedStyle preserves object-fit and object-position declarations on <object> and <embed> elements. spec ↗ script …
object-svg-object-fit-none-geometry-probe An <object> sized 240x160 loading an intrinsic 120x80 SVG document with object-fit: none renders the inner SVG at scale 1.0 (unscaled 120x80 concrete object size) rather than stretching 2.0x across the 240x160 content box. spec ↗ script …