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conformance · v150

v150 · remove-legacynointerfaceobject-from-fontfaceset-idl — 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://www.w3.org/TR/css-font-loading-3/ chromestatus: #5123999844663296 generated 2026-06-01T21:17:35Z by v150-conformance-subagent
0
pass
0
fail
0
blocked
4
total
id contract kind verdict detail
fontfaceset-in-window window.FontFaceSet exists in the global scope. spec ↗ script
fontfaceset-is-function FontFaceSet is a function constructor. spec ↗ typeof
document-fonts-instanceof-fontfaceset document.fonts is an instance of FontFaceSet. spec ↗ script
document-fonts-constructor-is-fontfaceset document.fonts.constructor is window.FontFaceSet. spec ↗ script