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conformance · v132

v132 · popover-invoker-and-anchor-positioning-improvements — conformance probe

6 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: #5120638407409664 generated 2026-06-01T08:22:00Z by conformance-author-v1-subagent
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id contract kind verdict detail
popover-target-element-property HTMLButtonElement exposes popoverTargetElement so invokers can be linked to popovers in script. spec ↗ script
popover-target-action-property HTMLButtonElement exposes popoverTargetAction (show/hide/toggle). spec ↗ script
anchor-name-supported CSS anchor-name property parses; popover anchor positioning is built on CSS anchor positioning. spec ↗ css-supports
position-anchor-supported position-anchor parses, the shorthand for binding a positioned element to a named anchor. spec ↗ css-supports
showpopover-with-source-option HTMLElement.showPopover accepts a {source} option so the invoker can be passed in declaratively. spec ↗ script
popover-invoker-property-exists The IDL surface for the invoker linkage exists on HTMLButtonElement. script