Page-specific UserStyleSheets should wait until the initial empty document has been removed to be injected
Created attachment 392577 [details] Patch
<rdar://problem/60042429>
Comment on attachment 392577 [details] Patch Clearing flags on attachment: 392577 Committed r257939: <https://trac.webkit.org/changeset/257939>
All reviewed patches have been landed. Closing bug.