AX: Implement new ARIA nameFrom:heading https://github.com/w3c/aria/pull/1860 The first is reviewed and will be merged soon, but the new ARIA Working Group practice is to file the related implementation and testing bugs before merging. There will be a related change to the AccName algorithm, too. https://github.com/w3c/accname/issues/182
<rdar://problem/109700680>
Gecko: https://bugzilla.mozilla.org/show_bug.cgi?id=1834463 Blink: https://bugs.chromium.org/p/chromium/issues/detail?id=1447981