The sandbox needs to allow additional syscalls.
rdar://problem/48904334
Created attachment 364727 [details] Patch
Comment on attachment 364727 [details] Patch R=me
Comment on attachment 364727 [details] Patch Thanks for reviewing!
Comment on attachment 364727 [details] Patch Clearing flags on attachment: 364727 Committed r242987: <https://trac.webkit.org/changeset/242987>
All reviewed patches have been landed. Closing bug.