dir=x where x isn't case sensitive match to ltr, rtl, or auto shouldn't have any effect.
Pull request: https://github.com/WebKit/WebKit/pull/3740
Committed 253878@main (7107058c6fc9): <https://commits.webkit.org/253878@main> Reviewed commits have been landed. Closing PR #3740 and removing active labels.
<rdar://problem/99243034>