Crashes under XPCServiceMain() / mach_msg_trap() due to sandboxing.
<rdar://problem/53594973>
Created attachment 374983 [details] Patch
Comment on attachment 374983 [details] Patch R=me.
Created attachment 374985 [details] Patch
@Per: I actually found more by looking at a larger dataset of crashes.
Created attachment 374986 [details] Patch
Comment on attachment 374986 [details] Patch Clearing flags on attachment: 374986 Committed r247876: <https://trac.webkit.org/changeset/247876>
All reviewed patches have been landed. Closing bug.