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conformance · v132

v132 · throw-exception-for-popovers-dialogs-in-non-active-documents — 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/multipage/popover.html chromestatus: #6352111728852992 generated 2026-06-01T08:23:00Z by conformance-author-v1-subagent
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id contract kind verdict detail
showpopover-on-detached-throws Calling showPopover() on an element whose document is not fully active throws. spec ↗ throws
showmodal-on-detached-throws HTMLDialogElement.showModal() throws when the document is not fully active. spec ↗ throws
show-on-detached-throws HTMLDialogElement.show() throws when the document is not fully active. script
showpopover-on-active-doc-still-works showPopover() in the current, active document continues to work — only inactive docs throw. script
popover-api-exists The popover API surface is present — without it the new error contract would be moot. script