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conformance · v133

v133 · dialog-light-dismiss — 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://html.spec.whatwg.org/#attr-dialog-closedby chromestatus: #5097714453577728 generated 2026-06-01T08:12:59Z by conformance-author-v1-subagent
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id contract kind verdict detail
dialog-closedby-idl HTMLDialogElement.prototype exposes a closedBy IDL attribute reflecting the closedby content attribute. spec ↗ script
dialog-closedby-default-state On a fresh <dialog>, closedBy reflects a string value (the default state derived from how the dialog was opened). script
dialog-closedby-any Setting closedby='any' is reflected through the IDL attribute and remembered. spec ↗ script
dialog-closedby-closerequest closedby='closerequest' is accepted and surfaces through the IDL attribute. script
dialog-closedby-none closedby='none' is accepted and surfaces through the IDL attribute. script