Created attachment 218072 [details]
Steps to reproduce:
1. Load the test case in Epiphany and enable caret navigation (F7)
2. Launch the accessible-event listener in a terminal
3. Up/Down arrow to each line then Right/Left arrow within the line
Expected results: When the caret moves to and within each line, caret-moved events would be seen.
Actual results: When the caret moves to and within the heading child of the div with role="button", there are no caret moved events.
Impact: When an Orca user navigates to that line and arrows within it, Orca is not able to present the new caret location and remains silent.
Created attachment 218073 [details]
The problem here is that the text exposed for that button belongs to a child of the ARIA button, which should not be exposing children according to WAI-ARIA User Implementation guide, section 5.1.1:
As the original issue has been detected in yelp-xsl and already fixed as an authoring issue, I'm resolving this one now as a wontfix