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conformance · v148

v148 · pointer-event-suppression-on-drag-start — 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/dnd.html#drag-and-drop-processing-model chromestatus: #6732314958757888 generated 2026-06-01T08:14:38Z by conformance-author-v1-subagent
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id contract kind verdict detail
pointer-event-exists PointerEvent is exposed; this feature changes when pointercancel fires for drag. exists
pointer-event-constructible PointerEvent('pointercancel') can be constructed for testing. spec ↗ script
drag-event-exists DragEvent is exposed. exists
pointer-cancel-event-name A pointercancel event flows through addEventListener without throwing. script
dragstart-event-name An element can register a dragstart listener which the spec uses as the firing point for the cancel. script