When using the `ElementInternals` API, form-associated custom elements should be able to be referenced by `<label>` elements using the `for` attribute, but it doesn't appear to be working with Safari (it is working with Chrome and Firefox with VoiceOver). How to Reproduce: - Go to 'https://cdpn.io/break-stuff/fullpage/qBQPGVb?nocache=true&view=fullpage' - Turn on VoiceOver - Focus on the input element and note that the associated label is not read The source code for this can be found here - https://codepen.io/break-stuff/pen/qBQPGVb
<rdar://problem/112102139>