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conformance · v145

v145 · refine-border-radius-shadow-edge-computation-for-high-border-radius — 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://drafts.csswg.org/css-backgrounds-3/#corner-shaping chromestatus: #5176753681203200 generated 2026-06-01T08:14:32Z by conformance-author-v1-subagent
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id contract kind verdict detail
border-radius-supported border-radius is supported in CSS — the property whose shadow-edge math is refined. css-supports
border-radius-large-percent-supported border-radius accepts values close to 50% — the regime the new computation targets. css-supports
box-shadow-supported box-shadow is supported — the property whose edge against the rounded corner is recomputed. css-supports
border-radius-roundtrip Setting border-radius round-trips through getComputedStyle — feature does not alter the OM surface. script
corner-shape-supported The corner-shape property is supported — the related extension that the same radius adjustment also affects. spec ↗ css-supports