Use UTF-8 encoding for empty main resource loads
Created attachment 416895 [details] Patch
Created attachment 416898 [details] Patch
Created attachment 416899 [details] Patch
Created attachment 416900 [details] Patch
Created attachment 416908 [details] Patch
Committed r271127: <https://trac.webkit.org/changeset/271127> All reviewed patches have been landed. Closing bug and clearing flags on attachment 416908 [details].
<rdar://problem/72778655>