We are creating the font manager in FontCache::platformInit(), but that's only called once for all the instances. This makes all offscreen canvas tests rendering text to crash, because the FontCache in the worker thread doesn't have a font manager.
Pull request: https://github.com/WebKit/WebKit/pull/26252
Committed 276483@main (82bbfe731a36): <https://commits.webkit.org/276483@main> Reviewed commits have been landed. Closing PR #26252 and removing active labels.
<rdar://problem/125183297>