Unparented WKWebView can't retrieve main resource data for a main frame plugin
Created attachment 357801 [details] Patch
<rdar://problem/46859068>
Comment on attachment 357801 [details] Patch Clearing flags on attachment: 357801 Committed r239442: <https://trac.webkit.org/changeset/239442>
All reviewed patches have been landed. Closing bug.