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conformance · v151

v151 · remove-legacynointerfaceobject-from-fontfaceset-idl — conformance probe

3 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-font-loading/#fontfaceset chromestatus: #5123999844663296 generated 2026-07-18T17:30:00Z by weekly-hardening-routine
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fail
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blocked
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id contract kind verdict detail
fontfaceset-interface-object-exposed FontFaceSet is now exposed as a global interface object (no longer [LegacyNoInterfaceObject]). spec ↗ typeof
document-fonts-is-fontfaceset-instance document.fonts is now recognisable as a FontFaceSet via instanceof. spec ↗ script
fontfaceset-prototype-has-check The exposed FontFaceSet interface carries its prototype methods (e.g. check()). spec ↗ typeof