Add SPI to handle proxy authentication and require secure proxy connections
Created attachment 396096 [details] Patch
Created attachment 396103 [details] Patch
Created attachment 396108 [details] Patch
Comment on attachment 396108 [details] Patch r=me
Committed r259910: <https://trac.webkit.org/changeset/259910> All reviewed patches have been landed. Closing bug and clearing flags on attachment 396108 [details].
<rdar://problem/61610480>