it is not necessarily a _mid_ word break. We may end up breaking at the left/right side.
Created attachment 442312 [details] Patch
Created attachment 442320 [details] Patch
Committed r284780 (243489@main): <https://commits.webkit.org/243489@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 442320 [details].
<rdar://problem/84612041>